Financial Data and Key Metrics Changes - The company reported record revenues of $5.3 billion for the September quarter, up 3% from the June quarter [5][18] - Gross margin reached 50.6%, a record in the post-Novellus period, improving from 50.3% in the June quarter [18][22] - Operating margin was 35%, also a record level for both dollars and percentage terms [18][22] - The deferred revenue balance at quarter end was $2.77 billion, slightly up from the June quarter [18] Business Line Data and Key Metrics Changes - Foundry accounted for 60% of systems revenue, up from 52% in the June quarter, marking the third consecutive record quarter [19] - Memory contributed 34% of systems revenue, down from 41% in the prior quarter, with non-volatile memory at 18%, down from 27% [19] - DRAM increased to 16% of systems revenue from 14%, driven by strong investments in high-bandwidth memory [19][20] - The Customer Support Business Group generated approximately $1.8 billion in revenue, slightly higher sequentially and year-over-year [22] Market Data and Key Metrics Changes - China represented 43% of total revenue, up from 35% in the prior quarter, with domestic Chinese customers growing significantly [21] - Taiwan accounted for 19% of revenue, flat sequentially, while Korea dropped to 15% from 22% [21] Company Strategy and Development Direction - The company anticipates a $200 million revenue impact from the new 50% affiliate rule affecting shipments to certain domestic China customers [6] - AI-related demand is expected to support sustained strength in leading-edge foundry logic and DRAM, with a robust setup for equipment spending in 2026 [7][8] - The company is investing in advanced packaging opportunities to meet future demands, with tools being engineered for panel-level packaging [15][16] Management's Comments on Operating Environment and Future Outlook - Management expects the China region to represent less than 30% of overall revenues in 2026 due to the impact of the new rule [7] - The company sees a strong demand for NAND upgrades, estimating over $40 billion in spending required over the next several years [9][20] - Management expressed confidence in outperforming WFE growth due to technology trends in semiconductor manufacturing [38] Other Important Information - The company allocated approximately $990 million to share buybacks in the September quarter, with a remaining $6.5 billion on the share repurchase plan [25][26] - Capital expenditures for the quarter were $185 million, focused on lab investments and manufacturing site expansions [27] Q&A Session Summary Question: Insights on customer conversations regarding AI infrastructure spending - Management noted that while recent announcements indicate future demand, current equipment needs are focused on enterprise SSDs and NAND upgrades [33][34] Question: Drivers for relative outperformance in 2026 - Management indicated that Lam's markets in etch and deposition are expected to outgrow WFE due to ongoing technology transitions [38] Question: Clarification on December revenue guidance - Management attributed the stronger December guidance to improved expectations in high-bandwidth memory and overall WFE strength [42] Question: Outlook for NAND market and potential for new tools - Management expects continued focus on upgrades in NAND due to a large install base, with potential for new tools if demand remains high [68] Question: Impact of clean room space on growth - Management acknowledged that physical infrastructure limitations could affect growth, but emphasized that demand is accelerating [60] Question: Dynamics of CSPG growth and margins - Management confirmed that CSPG is growing and remains accretive to operating margins, with strong demand in spares and upgrades [62]