Bren Higgins
Analyst · Evercore
Thank you, Rick, and good afternoon, everyone. Please turn to Slide 10 for a review of the September quarter financial highlights. This was a very strong quarter for KLA, with revenue and EPS each coming in above the high end of our guidance ranges. Our free cash flow results also marked a new record for the company. Total revenue for the September 2019 quarter was $1.413 billion, which was above the range of guidance of $1.31 billion to $1.39 billion. Gross margin for the quarter was 60.8% in the upper end of the guided range for the quarter of 60% to 61%, driven by incremental revenue growth and a stronger-than-expected semi process control product mix. GAAP EPS was $2.16 and non-GAAP EPS was $2.48, both of which were also above the range of guidance of $1.75 to $2.05 and $2.04 to $2.34, respectively. Our cash flow execution was exceptional this quarter, as both cash from operations and free cash flow came in at record levels of $496 million and $464 million. We are proud of our financial results this quarter, and we remain focused on executing across all markets as we move forward, with a focus on our integration and synergy plans for the Orbotech acquisition.
A key element of our investment thesis is KLA's commitment to returning cash to shareholders. On September 17, we announced a 13% increase in our quarterly dividend level to $0.85 per share. This marks the tenth consecutive annual increase in our quarterly dividend level, reflecting our confidence in our business strategy, the strength of our free cash flow generation and our ability to grow it over time as well as our commitment to returning value to shareholders.
In terms of returning capital to shareholders during the quarter, we were consistent and effective in our execution as we repurchased $228 million of common stock and also paid $122 million in regular quarterly dividends and dividend equivalents upon divesting of restricted stock units. In addition, we reaffirmed our commitment to continuing to return capital to shareholders as we announced, that the Board of Directors authorized, an additional $1 billion share repurchase program resulting in $1.6 billion available to repurchase under Board authorization at quarter end.
Please turn to Slide 11 for a review of the revenue breakdown by reportable segments and key end markets. Review of the semi process -- revenue for the Semi Process Control segment was healthy and a new record at $1.163 billion in the quarter, up 16% sequentially on the back of strength in foundry and logic. As Rick discussed in his opening remarks, our view of the WFE demand environment for 2019 has improved modestly, driven by investments in EUV and stronger foundry demand. In addition, increased demand from native China is also contributing to this improvement, where expectations are for this business in 2019 to be relatively flat now versus 2018. As I mentioned, foundry was very strong at approximately 44% of semi process control revenue, up from 36% last quarter. Memory was 43% in September, down from 52% last quarter; logic was 13% of total semi process control revenue versus 12% last quarter.
I'll turn now to the Specialty Semiconductor Process segment. SPTS is a leader in PVD and edge solutions in fast-growing specialty semiconductor applications, like MEMS, sensors, power and RF devices as well as in advanced packaging markets. Revenue for SPTS was $69 million, up 3% sequentially. While we're encouraged by the market position of these products, SPTS revenue for 2019 has been impacted by ongoing global trade issues and a slowdown in the automotive semiconductor market. Despite these near-term headwinds, we expect SPTS to deliver revenue levels in 2019 that are roughly flat on a pro forma basis to calendar year 2018. Revenue for the PCB, Display and Component Inspection segment was $179 million, down 3% sequentially and in line with expectations. This segment includes the former PCB and display businesses of Orbotech and KLA's component inspection business.
Please turn to Slide 12 for a breakdown of revenue by major products and regions. The distribution of revenue by major product category in the September quarter was as follows: wafer inspection was 32%; patterning, which includes reticle inspection, was 27%. Wafer inspection and patterning are part of our Semiconductor Process Control segment; Specialty Semiconductor Process was 4%; PCB, Display and Component Inspection revenue was 9%; other, which includes bench-top analytical instruments and the KLA Pro mature products and enhancements business, was 3%; Service was 25% of revenue in the quarter. In terms of regional split, Taiwan was 27%, China was 24%, Japan was 15%, Korea was 14%, the U.S. was 13%, Europe was 4%, with the rest of Asia at 3%.
Please turn now to Slide 13 for other income statement highlights. Total operating expenses were $376 million in the quarter and our operating margin was 34.2%. Other income and expense in the September quarter was $39 million. The effective tax rate was just under 11%, below our long-term tax planning rate at 14% due to a decrease in tax reserves related to the resolution of a tax audit in the U.S. Non-GAAP earnings per share under the 14% planning rate would have been $2.39 per share. Going forward, you should continue to use 14% as the long-term planning rate. Net income was $398 million, and we had 160 million diluted weighted average shares outstanding.
Please turn to Slide 14. We ended the quarter with $1.8 billion in cash, total debt of $3.4 billion and a flexible and attractive debt maturity profile supported by investment-grade ratings from all 3 agencies.
Please turn to Slide 15 for a review of free cash flow. KLA has a history of consistent free cash flow generation and high free cash flow conversion. Over the past 5 years, we have averaged just over 100% free cash flow conversion. And over the last 12 months, it's been 84%. Our innovation and differentiation in the marketplace are what drives our industry-leading gross margins, and ultimately, our free cash flow conversion.
Please turn to Slide 16. KLA continues to execute on its commitment to return capital to shareholders in the form of both dividends and share repurchases. The dividend payout has increased at a compound annual growth rate of 15% since inception. The share repurchase has also increased over the years, with the average price paid to repurchased shares being slightly over $66 since 2010. The only exception to the company's systematic repurchasing activity was during the period when it was blacked out due to merger discussions.
Please turn to Slide 17 for December quarter 2019 guidance. We expect total revenue to grow sequentially, roughly 4% at the midpoint and be in a range of $1.435 billion to $1.515 billion in the December quarter. Foundry is forecasted to be about 55% of semi process control system revenue in the December quarter, depicting the strength we continue to see among our foundry customer base. We expect memory to be approximately 36% of system revenue in the December quarter, reflecting continued headwinds we see in the memory market. Logic is expected to be about 9% of semi process control system revenue next quarter.
For the second half of the year, we now expect foundry and logic revenue combined to be up over 50% in the second half of the calendar year versus the first half. Based on product mix expectations for the December quarter, we forecast gross margin to be in a range of 60% to 61%. In terms of operating expenses, we are modeling NIM to be approximately $385 million. The higher operating expense level in the December quarter is due principally to the timing of non-headcount-related product engineering expenses for next-generation programs as well as new risk mitigation bubble costs associated with recent actions taken to drive long-term structural cost reduction actions related to leveraging KLA's global footprint to relocate certain manufacturing and engineering activities to lower-cost locations.
We would expect to see an impact from these activities through 2020, with the return on these investments beginning in 2021. As we move forward to the March quarter, our expectation today is that operating expenses will return back into the range of $370 million to $375 million, as product development expenses normalize to run rate levels and acquisition synergies offset other costs. We expect other interest and expense to be approximately $38 million in the December quarter and the tax rate to be about 14%. For earnings, we expect GAAP diluted EPS of $2.13 to $2.43 per share and non-GAAP diluted EPS of $2.39 to $2.69 per share. Our EPS guidance is based on a fully diluted share count of approximately 159 million shares.
In conclusion, the September quarter result demonstrates strong operating performance and relative strengths for KLA across many critical segments in what remains an environment with some headwinds. With our diversified end markets, continued technology leadership across a broad product portfolio and operational discipline, KLA is delivering strong relative performance, and we are encouraged by the momentum we see in our business.
Before I turn the call over to Kevin to begin the Q&A, I'd like to make a few qualitative comments on our outlook for the wafer fab equipment market in 2020. While it is too early for us to provide specific guidance or half-to-half trajectories for the year, we continue to see a strong year for foundry and logic investment, with investment levels consistent with what we've experienced in 2019 as customers continue to progress their technology road maps and a strong demand environment, with improving competitive dynamics in diversified end demand.
For memory, we expect a better year in 2020, and disciplined supply management in 2019 has improved the overall condition in both segments. Given the strength of our market position, the purchasing behavior of process control in foundry and logic, improving process control intensity in memory and contributions from new products, calendar 2020 is setting up for another year of relative outperformance for KLA. We'll have more to say on this when we report earnings for December quarter.
I'll now turn the call back over to Kevin to begin the Q&A. Kevin?