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Earnings Call: Q3 2018

Apr 26, 2018

Operator

Good day. My name is Jeff, and I'll be your conference operator today. At this time, I'd like to welcome everyone to the KLA-Tencor third quarter fiscal year 2018 earnings conference call. All lines have been placed on mute to prevent any background noise. After the speakers' remarks, there will be a question and answer session. If you'd like to ask a question during this time, simply press star, then number 1 on your telephone keypad. If you'd like to withdraw a question, please press the pound key. Thank you. Now, I'd like to turn the call over to Mr. Ed Lockwood with KLA-Tencor Investor Relations. Sir, you may begin.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Thank you, Jeff. Good afternoon, everyone, and welcome to our conference call. Joining me on our call today are Rick Wallace, our President and Chief Executive Officer, and Bren Higgins, our Chief Financial Officer. We're here today to discuss quarterly results for the period ended March 31st, 2018. We released these results this afternoon at 1:15 P.M. Pacific Time. If you haven't seen the release, you can find it on our website. Today's discussion of our financial results will be presented on a non-GAAP financial basis unless otherwise specified. A detailed reconciliation of GAAP to non-GAAP results can be found in today's earnings press release and in the investor presentation on KLA-Tencor's investor relations website. There, you'll also find a calendar of future investor events, presentations, and conferences, as well as links to KLA-Tencor's SEC filings, including our annual report on Form 10-K for the year ended June 30, 2017.

In those filings, you'll find descriptions of risk factors that could impact our future results. As you know, our future results are subject to risks. Any forward-looking statements, including those we make on the call today, are subject to those risks, and KLA-Tencor cannot guarantee those forward-looking statements will come true. Our actual results may differ significantly from those projected in our forward-looking statements. With that, I'll turn the call over to Rick.

Rick Wallace
President and CEO, KLA-Tencor

Thanks, Ed. Thank you all for joining us. I plan to briefly cover three items in my prepared remarks today before handing off to Bren. First, a quick review of KLA-Tencor's outstanding results in the March quarter, followed by highlights of our very strong market performance in 2017, as reported by Gartner. Concluding with our updated growth outlook for the industry and for KLA-Tencor in calendar 2018. Let's begin with the March quarter highlights. I'm very happy to report another record quarter for KLA-Tencor, with revenue topping $1 billion for the first time in March and finishing at the upper end of the range of guidance. Diluted non-GAAP earnings per share was a record $2.02.

These results were driven by our ongoing focus on customer success and technology leadership and reflect the strong momentum we are experiencing in the marketplace across each of our major product groups and in services. On March 19th, we announced the definitive agreement to acquire Orbotech Ltd. This acquisition is the next chapter in the progression of KLA-Tencor's strategies for profitable growth and long-term value creation. With this combination, KLA-Tencor will be a diversified technology leader in process and yield management solutions and services, extending our reach to address even more of the electronics value chain, from semiconductor device manufacturing to packaging, printed circuit board, and flat panel display manufacturing. We have kicked off the integration planning and regulatory review efforts, these processes are moving forward as planned.

We are very impressed with the Orbotech team and are excited about the opportunities that this combination will create as we execute our strategies to benefit customers, stockholders, and employees. Coupled with the momentum we are experiencing in our core inspection and measurement business, with the prospect of augmenting that growth with the new assets from Orbotech, we are very excited about the opportunities that lie ahead for KLA-Tencor. Turning now to highlights of the recently published Gartner market report for 2017. The data shows that in a very strong year for wafer fab equipment investment, with memory customers accounting for approximately 65% of overall WFE demand in 2017, KLA-Tencor grew or maintained a strong market position and drove SAM expansion in each of our major product markets while addressing increasingly more complex inspection and measurement requirements in the marketplace.

With WFE forecasted to remain at a high level in 2018, we expect overall process control intensity to grow in the year, driven by growing value of inspection and measurement in addressing critical customer problems and semiconductor industry expansion in China. As a leader in process control, KLA-Tencor continues to strengthen our position in China, both in terms of customer footprint and adoption. We are still in the early stages of a multi-year investment cycle in China, which represents a tremendous opportunity for KLA-Tencor. The presence of sub-scale factories under tremendous pressure to yield while still in startup mode and the overall complexity associated with developing a world-class semiconductor industry will drive significant growth for our business in the region.

In addition, the high level of investment by memory customers has driven an unprecedented investment cycle in unpatterned wafer inspection and metrology to support capacity growth in wafer manufacturers and IC fabs, as well as to meet more stringent wafer cleanliness and wafer flatness specifications in Vertical NAND. These products experienced record demand in 2017, with order momentum continuing in 2018, with shipments and revenue expected to scale in this calendar year and into 2019. Now for some product highlights that underlie our strong market performance. First, we saw particular strength in mask inspection in 2017. Gartner estimates that the mask inspection market grew 64% in the year to $538 million, fueled in large part by customer investment in EUV lithography, by continued strength in multi-patterning optical lithography. KLA-Tencor's mask inspection technologies are critical to customer success in bringing EUV to market.

We are collaborating with each of our major customers to accelerate EUV mask development, yield, and requalification. Other process control challenges inherent to EUV include resist qualification and scanner control. These, along with the complex patterning and defectivity issues associated with the current EUV source technology, present market opportunities that we believe KLA-Tencor is uniquely positioned to address with the most comprehensive process control portfolio in the semiconductor industry. EUV promises to be a positive catalyst for future growth of the advanced process control market and for KLA-Tencor. The overlay metrology market grew 29% in 2017 to $456 million. KLA-Tencor is a pioneer in overlay metrology, deploying unique capability across two different technology platforms.

The growth of memory investment in 2017 was a major factor in the strength in overlay metrology and in other metrology markets for KLA-Tencor in the year, driven by the increased complexity in advanced memory design architecture, including multiple layers and film stacks, and verticalization of structures. Finally, in optical pattern wafer inspection, KLA-Tencor's largest served market, SAM, grew 6% in the year to over $1.3 billion, and we experienced our strong market leadership driven by customer preference for our broadband plasma and laser scattering optical inspection portfolio over competing wafer inspection technologies, including E-beam. These are just a few of the product successes that led to our sales growth and SAM expansion in 2017. This growth is a result of the continued successful execution of product and service strategies that address increasing inspection and measurement challenges in today's marketplace.

Through that, KLA-Tencor is helping to drive customer success in a period of strong growth for the semiconductor industry. Turning to the overall industry environment for calendar 2018. Coming off an exceptionally strong year in 2017, the investment landscape in each of the major customer end markets today is solid, supporting a WFE industry growth outlook that is currently expected to be in the high single digits to low double digits in 2018. In terms of our view of the end markets, we see memory once again comprising 70% or more of WFE investment in 2018, led by the ongoing ramp in 3D NAND, capacity expansion in DRAM, and continued investment from China Memory. In foundry, we are expecting to see orders for the first wave of investment in five nanometers to begin in the second half of the year, with logic investment in 2018 focused on 10 nanometer.

Finally, we expect continued expansion of EUV lithography investment in foundry and DRAM in the year. Given our technology leadership, strong customer acceptance of new products, improving process control intensity in leading-edge memory, and our strength in China, KLA-Tencor is expecting to deliver revenue growth of 10% or more in 2018. This does not include any contribution from the Orbotech acquisition, which we expect to close by the end of the year. I will now turn the call over to Bren Higgins for his comments. Bren?

Bren Higgins
EVP and CFO, KLA-Tencor

Thanks, Rick, and good afternoon, everyone. As Rick highlighted in his opening remarks, the March quarter represented an outstanding period of financial performance for the company. Shipment, revenue, and GAAP and non-GAAP diluted earnings per share each came in at the upper end of the range of guidance in the quarter, with revenue and earnings per share finishing at record levels. This result was driven by strong demand across our product portfolio, as well as solid execution of our strategic objectives. Revenue was $1.021 billion in the quarter, GAAP diluted earnings per share was $1.95, and non-GAAP diluted earnings per share was $2.02. In our press release, you will find a reconciliation of GAAP to non-GAAP diluted earnings per share. With the exception of when I explicitly refer to GAAP results, my commentary will be focused on the non-GAAP results, which exclude the adjustments covered in the press release.

Turning to highlights of the March demand environment in terms of shipments. Total shipments were $1.019 billion, finishing at the top end of the guided range for the quarter, with upside driven by higher-than-expected customer pull for our overlay metrology products. Looking forward, we are modeling June quarter shipments to grow sequentially and be in the range of $1.01 billion to $1.09 billion. Based on our current build plans and expected customer delivery timing, we continue to expect second half shipments to grow in the mid-single digits compared to the first half of the calendar year. For the full year, we expect shipment growth in the high single digits. Memory was 78% of shipments and stronger than our original forecast for the quarter. DRAM accounted for 47% of total system shipments in the period.

We expect memory will continue to dominate the system shipment mix in the June quarter, with memory shipments forecasted to be approximately 68% of the total in Q2. Memory mix is expected to remain between 60% and 70% of shipments in the second half of 2018. Foundry was 13% of shipments in March. Foundry is forecasted to be about 24% of shipments in June. Logic was 9% of shipments in the March quarter. Our current outlook is for Logic to be 8% of total system shipments next quarter. In terms of the approximate distribution of shipments by product group, wafer inspection was 45%, patterning was 29%, patterning includes shipments for reticle inspection, service was 22%, and nonsemi was approximately 4%. I'll turn now to the income statement. Revenue was a record $1.021 billion in March, finishing at the upper end of the range of guidance.

Service revenue was a contributor to the upside in the quarter, as customer utilization of the installed base remains at a high level. We expect revenue to grow sequentially and be in the range of $1.02 billion to $1.08 billion in the June quarter, and for revenue in the second half of calendar 2018 to be in accordance with our outlook for full-year revenue growth of 10% or greater. Gross margin was 64%, in line with our guidance for the quarter. The factors driving our strong gross margin performance were consistent with recent margin trends in terms of product mix, efficient execution of new product introduction, and variable cost management in service and manufacturing operations. Looking forward to June, we expect gross margin to be in the range of 64%-65% as a richer product mix is expected in the quarter.

Our gross margin guidance of 63%-64% in calendar 2018 remains unchanged. However, current trends support a bias towards the high end of this range. Total operating expenses were $261 million in March, down about $2 million compared with December, and operating margin was 38.5%. Operating expenses for the March quarter were approximately $5 million higher than guidance due to a number of factors, including higher material costs for next-generation programs. We continue to see many opportunities for future top-line growth in our core business and plan to maintain our investment posture with new programs, including those supporting EUV and vertical memory applications. For the June quarter, we expect operating expenses to be approximately $262 million-$264 million.

In the second half of 2018, we are modeling operating expenses to be approximately $265 million-$270 million per quarter, with variability around this operating expense level driven by the timing of non-headcount engineering program development costs. Our outlook is for operating margins in 2018 to be in excess of 38.5%, consistent with our published business model in the $4.2 billion-$4.5 billion annualized revenue range. The effective tax rate was 15% in the quarter, in line with our guidance and our long-term planning rate. Finally, net income for the March quarter was a record $318 million, and we had 157 million fully diluted shares outstanding. I'll turn now to highlights from the balance sheet and cash flow statement. Cash and investments ended the quarter at $2.89 billion, an increase of approximately $132 million compared with December.

Cash from operations was $353 million in March, and free cash flow was $338 million. In Q1, we paid an aggregate of $92 million in regular quarterly dividends and dividend equivalents for fully vested restricted stock units, and repurchased $85 million of common stock pursuant to our share repurchase program. In February, we announced a 27% increase in our quarterly dividend level to $0.75 per share. That's effective this quarter. At the end of the March quarter, we had $1 billion authorized under a new share repurchase program, as well as authorization for an additional $1 billion contingent upon completion of the Orbotech acquisition. We plan to resume share repurchases in the June quarter, consistent with our previously articulated approach.

We expect the amount of share repurchase in the June quarter will be limited, given legal restrictions following the distribution of the proxy statement and prospectus in connection with the Orbotech shareholder vote on the merger. Our current plan is to accelerate our share repurchase activity following the completion of the shareholder vote, subject to market conditions. Finally, I'll note that we will be adopting the new revenue recognition standard, ASC 606, starting in the September quarter to coincide with the start of our fiscal year 2019. We will be adopting ASC 606 using a modified retrospective approach, in which we will report financial results prospectively under the new standard, but will not restate historical results. We will provide additional information on the impact of the new standard on KLA-Tencor's financial reporting in our next earnings call in July.

In conclusion, the results demonstrated by the company in the March quarter and in the 2017 Gartner report reflect the company's technology leadership, the critical nature of process control, and our customers' growth strategies, and the value of our industry-leading business model and capital allocation strategies. We are experiencing unprecedented growth in the electronics industry today, driven by new demand drivers such as artificial intelligence, big data, automotive, and the Internet of Things, layered on top of the traditional computing and mobility markets. This is a fundamental shift in demand for semiconductors. As the market leader in semiconductor process control, and with the new opportunities presented by the pending Orbotech acquisition

Rick Wallace
President and CEO, KLA-Tencor

We believe KLA-Tencor is uniquely positioned to benefit from this industry growth and to create long-term enduring value. Looking forward to 2018 and beyond, we are energized by what lies ahead. Fueled by record total backlog of just under $1.9 billion as of the end of the March quarter, we are positioned for revenue growth of 10% or more in the year, against a backdrop of the overall WFE industry environment that is currently forecasted to grow in the high single digits to low double-digit range. With that, to summarize, our guidance for the June quarter is shipments in the range of $1.01 billion-$1.09 billion, revenue between $1.02 billion and $1.08 billion, and GAAP diluted EPS of $2-$2.24 per share, as well as non-GAAP diluted EPS of $2.02-$2.26 per share. With that, I'll now turn the call back over to Ed to begin the Q&A.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Okay. Thank you, Bren. At this point, we'd like to open up the call for questions. We request that you limit yourself to one question and one follow-up, given the limited time we have for today's call. Feel free to re-queue for additional questions as time permits. All right, Jeff, we're ready for the first.

Operator

Okay. At this time, I would like to remind everyone, in order to ask a question, press star, then the number one on your telephone keypad. We'll pause for just a moment to compile the Q&A roster. All right. Our first question comes from the line of Timothy Arcuri from UBS. You may go ahead.

Timothy Arcuri
Analyst, UBS

Thank you very much. Hi, guys. The first question obviously is on memory. I don't ever remember you guys shipping 65%-70%, which is basically in line with the market. I don't ever remember you guys having memory concentration that's sort of in line with the market. Typically, it's quite a bit lower. I guess my question is it like a one-time deal related to China? Is it a big uptick in memory process control intensity? Can you just talk about that? Thanks.

Rick Wallace
President and CEO, KLA-Tencor

Hey, Tim. I'll take it and then give it to Bren. Yes, and yes. I think China definitely helps because of the greenfield fabs, which are always great for process control intensity, but also newer players needing to get the capability to ramp. The second part is that we have new capability, which the market is recognizing the need for. We're seeing increased process control adoption as a result of that. That's both in the developments in NAND, but also in DRAM as they continue to push design rules.

Bren Higgins
EVP and CFO, KLA-Tencor

Hey, Tim. Welcome back. I don't have much more to add. To Rick's point, China, we did ship pretty significantly into a DRAM project in China. We're going to ship into a NAND project this quarter. We see a lot of momentum there. I think from a metrology perspective and inspection perspective, we're seeing some solid adoption in both segments, NAND a little bit stronger than DRAM from a process control intensity perspective. We're really, I think, excited about our positioning there, and we've got some products in the pipeline that hopefully will help drive intensity further.

Timothy Arcuri
Analyst, UBS

Okay, great. Bren, I guess just as a follow-up, can you talk about the timing on those products? I know the industry's been waiting for a product that can really help ramp yields in 3D NAND. You guys have been developing that product suite for now some time. Can you talk about when that's going to really ship and when it's going to become meaningful in terms of revenue, and that could really drive the sort of organic memory process control intensity up for you? Thanks.

Rick Wallace
President and CEO, KLA-Tencor

Yeah. On the inspection side, the inspection problem, it's a difficult challenge for customers and proving to be a pretty challenging engineering problem. We hope we've got some tools out in the field. We're working with customers in an evaluation phase. We'll see if that translates into a high-volume production product or not. I think the jury's still out. We're doing a lot of work on that front. I think that's one area. I think on the other area is a product in metrology where we've shipped a couple of probe tools into the field for in-stack metrology. We're hopeful we'll get some traction there. I don't think these products contribute to the financial results we've been discussing or the outlook over the next 6 to 9 months.

Certainly, as we move into 2019, hopefully we'll get some traction there, and we'll see those be a bigger % of the total.

Timothy Arcuri
Analyst, UBS

Great. Thank you so much.

Rick Wallace
President and CEO, KLA-Tencor

Thank you.

Operator

Our second question comes from the line of Mr. Harlan Sur from J.P. Morgan. You may go ahead.

Harlan Sur
Analyst, J.P. Morgan

Good afternoon, guys. Thanks for taking my question, and congrats on the good quarterly execution. We just got off the Intel call, and they just pushed out their 10 nanometer ramp due to yield issues. We've also heard of yield challenges by some of your memory customers, especially on the DRAM side. You guys have always characterized your flagship Gen5 wafer inspection platform as more of an opportunity as EUV starts to get more proliferation. Just given all of the current yield challenges in logic and memory, have you guys seen some pull-ins of the Gen5 adoption into calendar 2018 by your customer base?

Rick Wallace
President and CEO, KLA-Tencor

We have had good success with the Gen5. I think we are still in the mode of proving out the capability before it ramps into production. We do have a couple of places where we're seeing multiple units ramping, but it is a relatively long cycle. We have seen the pull in of product nodes. In the case where we did think it'd be more tied to EUV, we've seen more work characterization of existing nodes, to the problems that you're talking about. I think people that felt like maybe they'd resolve some of the yield challenges are definitely using some of their initial capability to debug. We are seeing some opportunity for that. It's kind of as we expected. It's a relatively long adoption cycle once people get in the evaluation, and most of the customers are encouraged, but continuing to push that.

Harlan, by the end of this year, we will have either shipped or booked for dollars somewhere near 18-20 systems into the field across all segments, and I think that's one of the things that we're encouraged by, that we are solving issues in development across all segments with the customers around discovery use cases, but also EUV use cases. Most of the roadmap for that product line right now is about how do you prepare it for volume production for five nanometer and beyond, and most of the engineering effort on that tool is to speed up throughput and work through tunable sensitivity and some of the other opportunities to make it more production viable. The traction is good. It's demonstrating value, and it's demonstrating value across all segments, which we're encouraged with.

Harlan Sur
Analyst, J.P. Morgan

Yeah. Thanks for the insights there. According to some of those recent market share statistics that you were talking about, Bren, your reticle inspection business grew by over 2x in 2017. Obviously, it's the highest profitability segment for you guys. Early EUV adoption, I think, was probably one of the strong drivers for the 2017 performance. As we think about accelerated EUV adoption this year, do you guys think that the reticle inspection business can grow this year off of the strong results last year? First question, can you guys just give us an update on your next generation EUV E-beam reticle inspection platform? Thanks.

Rick Wallace
President and CEO, KLA-Tencor

Yeah, let me take it. Maybe to view it from a portfolio perspective, we did see strength, as you mentioned, and we talked about in the prepared remarks, due to a number of new tape-outs at advanced design rules, and this, of course, being driven largely by people pushing designs and mask shop capability for EUV, but not only that. Yes, we do see continued strength overall in support of EUV, and when we look at our overall process control intensity for EUV as compared to optical, if you look at the one scanner of optical DUV versus EUV, you need a similar percentage, maybe a little bit more percentage of process control intensity to support that. That includes the fractional use of reticle tools as well as wafer tools in order to support it.

While the overall industry, in general, may see capital intensity decline in areas other than litho, process control will track and maybe even outpace litho for process control intensity for EUV. We're encouraged by that. In terms of E-beam, we're finding that there is a lot of appetite for the optical extensions that we have on the platform, we continue to support our customers with that. One of the notes of the comments of the slipping out of nodes due to yield means they're also delaying advanced EUV insertion, which gives the optical a longer runway. We feel very well positioned to support that.

Bren Higgins
EVP and CFO, KLA-Tencor

Hey, Harlan, this is Bren. The only thing I'll add to that is that we had talked about is introducing that tool in the marketplace sometime in calendar 2019. Our views on that haven't changed. I would expect that it's more towards the end of 2019 than the first half. Our plans are moving forward, and it's going to intersect HVM at the right time. Nothing really new to add on that front since what we updated you with last quarter.

Harlan Sur
Analyst, J.P. Morgan

All right, great. Thank you.

Operator

Our next question comes from the line of Farhan Ahmad from Credit Suisse. You may go ahead.

Farhan Ahmad
Senior Analyst, Credit Suisse

Thanks for taking my question, and congrats on the great set of results. Rick, my first question is in regards to the foundry shipments. It's a two-part question, basically. First, when I look at the foundry shipments, they are pretty much at an all-time low. I just want to ask how is the trajectory from here? It seems like even in the back half, it's not going up nearly to the level that you have seen historically. Second, as you talked about EUV, when I look at the EUV shipments that ASML is having in the foundry segment, it's been pretty strong recently, but I don't see that reflected in the foundry shipments that you are having. Is there a difference in timing in terms of when the EUV ships and when you would actually start to benefit?

Rick Wallace
President and CEO, KLA-Tencor

Yeah, I'll take it, but I'll also have Bren comment as well. In support of EUV, the question we were just addressing, we have seen reticle. I think the reticle timing of that is maybe more consistent with the shipments of EUV tools, and that is of support of the same development work that's going on. We do expect to see an increase toward the end of the year in activity around the ordering for five nanometer node, and we talked about that in the prepared remarks. I think that that is coming, and that's something that we'll see later. To your point, we had a great quarter, but it wasn't really driven by our foundry business, and we expect that to be late 2018 and carry over into 2019.

Bren Higgins
EVP and CFO, KLA-Tencor

Yeah. To the point, we're performing, I think, at a pretty high level here with a lot of unique inflections that are driving our business, absent the strong foundry logic environment. I think as we move through this year, stays very memory centric, but beyond that, we would expect foundry to come in a little bit stronger. To your point, it's at a very low level, almost historical low level. When you look at the comments we made earlier around China, you look at the EUV development activity, you look at the activity we see in the wafer space, and then this improving process control relevance in and around the different memory segments. It's a good story for us this year, I think, as we move into the future with stronger foundry environment, then we'll see that kick in.

As you know, the process control intensity in foundry logic tends to be closer to 2x what it is in memory. Not every dollar of WFE is created equal when it comes to our business. Certainly if you see a pickup in that segment, that has a significant positive for us.

Farhan Ahmad
Senior Analyst, Credit Suisse

Got it. Then, my second question is in regards to mask inspection and broadly the trend that you saw last year. I wanted to understand how much of it is just driven by an increasing mix towards ASICs. In cloud, we are seeing more and more companies moving to application-specific processes. What I wanted to get a sense of is that as the foundry mix moves from low mix, which is a limited number of designs running in the fab, to a high mix, in an environment where there are a lot more designs running in the fab, how does it affect your business? Secondly, as we think about the mask inspection business, the strong growth that you saw last year, was it a one-time phenomenon, or as the ASICs trend continues in future, could this be a higher growth business for you?

Bren Higgins
EVP and CFO, KLA-Tencor

Well, it certainly scales with the tape outs, right? You could even have a situation where you see reticle capacity put in place where you don't necessarily see it coincide with wafer weight starts because you have to do the tape outs, but maybe the volumes, it is a low volume design. Clearly we're seeing more activity there, certainly even at seven nanometer. You're seeing more investment in and around reticles. At seven nanometer with the multi-patterning schemes that are being deployed, it does drive a need for reticle capacity around writers and inspectors. There's a nice ratio of one to two units, or one inspector to every two to three writers in a mask shop. That's certainly a driver for us.

We think that, as we move through the end of this year and into next year, I think that there's momentum around that that continues.

Farhan Ahmad
Senior Analyst, Credit Suisse

Thank you. That's all I have.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Thank you.

Operator

Our next question comes from the line of C.J. Muse from Evercore. You may go ahead.

C.J. Muse
Analyst, Evercore

Good afternoon. Thank you for taking my question. I guess first question, if you look at the Gartner data that you cited earlier, process control grew at roughly half the rate of WFE, and obviously that makes sense given how much the spend is driven by memory. Curious, what the scenario you would see where process control would outgrow WFE. Do you think that that's something we could see over the next six, 12, 18, 24 months? If so, what would be the precise drivers there?

Rick Wallace
President and CEO, KLA-Tencor

CJ, great question. I think if we just held serve, in other words, if the mix didn't move as much toward memory, and if you held memory as a ratio to foundry logic was the same in a year, it was flat, then of course we believe process control intensity would grow. Even though process control intensity did go up in memory, as Bren mentioned, and as you all know, it can't make up for the mix shift that we saw. I'd say that would be the main way of process control intensity, because a growing memory market, on a relative basis, but on a process control intensity, it goes down if you do a weighted average. When we've looked at it, CJ, a rule of thumb is usually for about a 10-point swing in mix, you end up with 70 or 80 basis point shift in intensity.

Bren Higgins
EVP and CFO, KLA-Tencor

It tends to move around a little bit, depending on who's buying and so on. That's a reasonable way to think about it. To Rick's point, certainly if we start to see foundry logic as a percent of the total increase, then that will be good for process control intensity. When we've seen it at closer to the 50% range, and 50% foundry or so in that ballpark is when we've seen process control outperform. To Rick's point, I think as we move into an EUV environment, certainly if the process control may be scaling with litho, that certainly maybe adds a different element to the ability for process control to grow online.

C.J. Muse
Analyst, Evercore

That's helpful. I guess as my follow-up, are you guys disclosing bookings backlog anymore? No?

Bren Higgins
EVP and CFO, KLA-Tencor

We do in our 10-K. If I give you the backlog and the shipments, that sort of gets you to the bookings number. I will tell you that we were slightly below a book-to-bill of one this quarter.

C.J. Muse
Analyst, Evercore

One quick sneak follow-in. As you think about the transaction with Orbotech, what are the restrictions on your ability to buy back shares between now and close?

Bren Higgins
EVP and CFO, KLA-Tencor

As I mentioned in the prepared remarks, there's a small window that I have this quarter prior to from the opening of our quiet period to the filing of the prospectus and the S-4. It's a very small window where we will begin our activity, but it'll be limited. We have no restrictions

Restricted at that point, we have no restrictions after the shareholder vote has occurred. Based on current schedules, and those could move around based on comments from the SEC and so on, if you get those, but that would imply that we would begin buying back in a more significant way sometime in the second half of next quarter, of the September quarter.

C.J. Muse
Analyst, Evercore

Very helpful. Thank you.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Thank you.

Operator

Our next question comes from the line of Patrick Ho from Stifel Financial Corp. You may go ahead.

Patrick Ho
Analyst, Stifel Financial Corp.

Thank you very much. Rick, maybe first off, in terms of the capital intensity trends you're seeing in the memory market as a whole, obviously 3D NAND has helped a lot of your metrology business, but DRAM has also picked up in terms of spending, for both 2018 and may carry into 2019. I know your inspection business benefits from the more multi-patterning steps, but are there other areas or other applications as DRAM continues to shrink that also benefit, I guess, both process control intensity and for you specifically?

Rick Wallace
President and CEO, KLA-Tencor

Yes. For DRAM, we do see a push for more capability for inspection, both the high speed kind of inspection that we do in monitoring, which is laser scattering based, but also in development, which is Gen5 oriented and the leading edge. We also see overlay challenges in DRAM are very significant, and it drives our metrology business for overlay. Yes, there is an increasing trend. 3D NAND has probably had more growth, and on a relative basis than DRAM, but we do see increasing trends in DRAM as well.

Patrick Ho
Analyst, Stifel Financial Corp.

Great. That's helpful. My follow-up question, going back to China for a second, I think last quarter you talked about the Chinese foundry segment being a area, one of growth, but also that's probably the area first where you're seeing a pickup. It seems like this call, it's kind of shifted a bit to the memory side of things. Is the Chinese foundry market still tracking as you thought, and it's just being supplemented now by the memory market?

Rick Wallace
President and CEO, KLA-Tencor

I think that the Chinese foundry market has slowed a little bit, and we've seen some delays there, whereas the Chinese memory market continues to move forward with investment, and they're dealing with all the things you'd expect from bringing greenfield fabs up in terms of challenges with getting facilities ready and tools installed. We do see strength in the memory. As Bren said, we'll see more of that. It has been a little bit softer on the foundry side, though.

Patrick Ho
Analyst, Stifel Financial Corp.

Great. Thank you very much.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Patrick-

Rick Wallace
President and CEO, KLA-Tencor

Just on the mix, from an order perspective, there's some lead time to these orders because of the site construction, order profile in calendar 2018 is probably closer to 50/50. The order profile in 2017 was heavier memory, and those are the tools that are shipping. From a shipment perspective, it's more memory centric. The orders, which we'll come through and we'll ship into next year, have more of an equal weight to them.

Patrick Ho
Analyst, Stifel Financial Corp.

Great. Thank you.

Operator

Our next question comes from the line of Toshiya Hari from Goldman Sachs. You may go ahead.

Toshiya Hari
Analyst, Goldman Sachs

Great. Thank you so much. I guess on your foundry business, how should we think about the breadth of your business as the industry approaches seven nanometer plus and five nanometer? Should we expect something similar to 2028 where you had multiple customers investing pretty aggressively or a fairly consolidated customer mix there?

Rick Wallace
President and CEO, KLA-Tencor

We haven't really seen dropout happen for many players as we're going to seven. I'd say the same people that were in. I think they're phased in terms of their investment. There aren't that many players doing the advanced design rules for foundry, but they're all still in, and we expect them at various phases to be investing. No real change in breadth from the foundries on the advanced nodes.

Toshiya Hari
Analyst, Goldman Sachs

Okay. Got it. As my follow-up, I think last quarter you guys talked about domestic China orders tripling in 2017. Curious what your expectations are for 2018, if any. Thank you.

Rick Wallace
President and CEO, KLA-Tencor

Well, as we said in the prepared remarks, we see a continuation of the momentum there just given where they are in terms of the early innings of some of these investments. I would say the numbers look relatively flat to us from an order perspective, my lead time comment earlier notwithstanding. We'll see how it plays through as we move through the quarter. Obviously, there's some second half dependency to that profile. For right now, it looks like it's fairly consistent versus what we saw in last year.

Toshiya Hari
Analyst, Goldman Sachs

Thank you.

Rick Wallace
President and CEO, KLA-Tencor

Thank you.

Operator

Our next question comes from the line of Romit Shah from Nomura Instinet. You may go ahead.

Romit Shah
Analyst, Nomura Instinet

Yes. Thank you. I apologize, I also have a question about foundry. I guess your major foundry customers, my impression is they generate a meaningful portion of their revenues from the mobile market, that market is pretty subdued across the board. The question is can we see a sustained recovery in your foundry business if smartphone demand remains weak? Seeing foundry revenues even for June down a healthy double-digit %, it just doesn't seem like the node transitions are enough.

Rick Wallace
President and CEO, KLA-Tencor

We're pretty down at foundry. I think our profile is consistent with that, we don't anticipate a lot of strength in foundry until we get later into the end of the year and into 2019. All our commentary all our forecasting agrees with your thesis that there's a point here. We are seeing increased activities, however, around advanced node and investment, that's of course, the precursor to more investment that's coming. We're definitely seeing it, some of the reticle business that we're seeing now is in support of that. Given historical patterns, the same path is being followed, where you have the initial investment around the development followed by ramp. The size of those ramps may be smaller than in the past, that's part of what we anticipate and model as we talk about our business going forward.

Romit Shah
Analyst, Nomura Instinet

Okay, great. Thanks, Bren.

Operator

Our next question comes from the line of Atif Malik from Citigroup. You may go ahead.

Atif Malik
Analyst, Citigroup

Hi. Thanks for taking my question, and good job on the quarter. Rick, you were a keynote speaker at recent SEMICON China. I'm sure you got a chance to talk to some of the executives driving the Made in China 2025 plan. How do you expect domestic Chinese spending to behave in the face of the recent trade tariffs and the tensions between U.S. and China? Then I have a follow-up.

Rick Wallace
President and CEO, KLA-Tencor

Right. I don't think anything's changed from the perspective of the Chinese in terms of what we've seen in terms of some of the discussions. This is a program to gain self-sufficiency in memory and in logic over time because China's such a big importer of semiconductors. I don't think there's any change. I thought you were going to ask me, what does it sound like? If we take their numbers and cut them in half then we still have a big growth forecast for China, based on the investment level that we're seeing and the activity that's going on there. I don't see any change as a result of any of the recent noise in the system around trade.

Atif Malik
Analyst, Citigroup

Okay. As a follow-up on the Orbotech deal, I'm curious what kind of feedback have you received from your three big customers on this deal? Bren, if you can just talk about the regulatory milestones required on this deal. Does it require China MOFCOM approval and some of the other approvals? Thanks.

Rick Wallace
President and CEO, KLA-Tencor

I'll take the first part, and Bren can take the second. There's really been very little commentary from customers. This is such a different deal that even in the case where the larger customers are focused on, some of them have interest in both areas, they're not in the same organization, so there's not much overlap. I think the one thing that our customers have said consistently is they don't want us to lose focus on what we're doing for them, and we're not. Structurally, we're going to organize in such a way that we will maintain every bit as much focus as we have today supporting our existing customers. That has been the only commentary we've heard at all, is please continue to support us, but there was no assumption by them that we wouldn't. When they felt compelled to voice something, that was it.

Bren Higgins
EVP and CFO, KLA-Tencor

On the regulatory front, by the end of this week, we will have had all of our filings submitted, which is our plan and according to schedule. There's one that will take another week or so, and that's not for any reason other than that there's a holiday in that country that's delaying the submission given the clock that exists on the review period. Everything moving according to plan.

Rick Wallace
President and CEO, KLA-Tencor

Jeff, our next question.

Operator

Yes. Our next question comes from the line of Edwin Mok from Needham. You may go ahead.

Edwin Mok
Senior Analyst, Needham

Great. Thanks for taking my question. I guess just quick follow-up on Orbotech deal as well. With kind of this trade tension with China and U.S., do you see that potentially create some challenges for you guys to get the regulatory approval from MOFCOM?

Rick Wallace
President and CEO, KLA-Tencor

We don't. That's not something that we have heard about. I think that, again, if you look at the nature of any of the deals that have had issues associated with that, they look nothing like this. We don't anticipate that.

Edwin Mok
Senior Analyst, Needham

Okay, great. Thanks for clarifying that. Then, Rick, on your answering one of the question, you mentioned that you see EUV and DUV process control intensity similar in a similar or even a slightly higher level. Can you clarify that? Is that mostly coming in with higher reticle inspection in EUV? Just to be really clear, are you talking about EUV versus similar type of multi-patterning DUV process, you get a similar process control CapEx spend, if you can provide some color around that. Thank you.

Rick Wallace
President and CEO, KLA-Tencor

Yeah. Well, we haven't worked out the entire model for that, but if you're just talking about what it takes in process control intensity to support a deep UV scanner versus what it takes to support an EUV scanner, obviously EUV scanner is more expensive, but the tools necessary from a process control standpoint to support that are more advanced or more intense. The resulting intensity around a scanner choice actually goes up slightly in terms of total dollars, acknowledging that the cost of an EUV scanner is higher. The process control intensity actually scales a little bit faster than the scanner cost in order to support it. That's simply the ecosystem around the scanner. The reticle qualifying the wafers, qualifying the image, the measurements that are necessary to support that.

It doesn't take into account all the other things where there'd be a reduction in layers, but just from that standpoint. We view the EUV as being a catalyst for additional growth for KLA-Tencor as it comes online.

Edwin Mok
Senior Analyst, Needham

Great. Actually, that's very helpful. Thank you.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Thank you.

Operator

Again, if you'd like to ask question, simply press star then the number 1 on your telephone keypad. We have a follow-up question from Mr. Timothy Arcuri from UBS. You may go ahead, sir.

Timothy Arcuri
Analyst, UBS

Thanks. I'm still trying to make sense of this foundry shipment into the back half of the year. If you look at Lam's shipments, I know that Lam's obviously a different company, and you sort of noodle through their guidance, it implies that foundry shipments are up 2X second half versus first half. If you graph their shipments versus your shipments, there's a pretty strong correlation between the trend for them and the trend for you, and it seems like maybe this time it's breaking down a little bit, and maybe the answer is that you're seeing an offset from this change at a big logic customer. Maybe that's sort of offsetting some of what would otherwise be a very strong foundry ramp, so that stuff ultimately comes back, but maybe it just gets pushed into next year. I'm just kind of trying to make sense of that.

Thank you.

Bren Higgins
EVP and CFO, KLA-Tencor

Yeah, Tim, it's Bren. Our foundry shipments in the second half are higher than the first half, so I want to be clear about that, in a pretty meaningful way. I think it's getting dwarfed by the amount of the memory shipments. When you talk about a shipment profile in the range that we discussed, somewhere in that $4.2 billion-$4.3 billion range, the 60%-70% of that will be memory. That's how we're seeing it. There is a pickup. On an absolute basis, certainly foundry is weaker overall compared to the inflections in memory we're seeing.

Timothy Arcuri
Analyst, UBS

Okay, Bren. Thanks.

Operator

Our next question comes from the line of Harlan Sur from J.P. Morgan. You may ask your question.

Harlan Sur
Analyst, J.P. Morgan

Hey, guys. Thanks for taking my follow-up. KLA has always kind of separated itself from the pack due to its premium margin structure, free cash flow generation. I'm just trying to do a sanity check here. Pro forma for Orbotech, I think the target operating margin is looking to be 36%. Are the free cash flow margins going to be somewhere in that kind of 32%-34% range, or how should we think about free cash flow margins pro forma for the combined company?

Bren Higgins
EVP and CFO, KLA-Tencor

Yeah. When we look at pro forma operating margins in the timeframe of, let's say, post synergy realization 2020 pro forma, you end up with about 36% or so operating income. I would think against that level of income, we would see free cash flow margin consistent with where we are today, maybe slightly below, because our operating margins are a little bit higher. The relative capital intensity of the two businesses is similar. I think we're in and around that 30% range against that level of operating income, and obviously, it'll vary depending on where we are in terms of working capital investments and so on. One thing that's attractive about the business is the growth, but also the lower capital intensity of it.

As we bring it together and as we start to drive through synergies and scale these businesses and get up to these mid to high 30 percentile operating margins, we should be able to drive free cash flow margin somewhere right around 30%, ±.

Harlan Sur
Analyst, J.P. Morgan

Great. Thanks.

Bren Higgins
EVP and CFO, KLA-Tencor

Thank you.

Operator

All right. There are no further questions at this time. Mr. Ed Lockwood, please continue.

Ed Lockwood
Senior Director of Investor Relations, KLA-Tencor

Okay. Thank you, Jeff. Thank you all for joining us today and for your continued interest in KLA-Tencor.

Operator

This concludes today's conference call. You may now disconnect.