# Who does Lam Research pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/lam-research · Facet: suppliers · Updated: 2026-07-12T08:20:37.412212+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Lam Research's confirmed suppliers/cost counterparties include MKS Instruments, 어드밴스드에너지 (RF 파워), 이코르 (가스 전달) plus 4 undisclosed/aggregate relationships. Per the valuechain.wiki graph: 7 cost edges, backed by 9 dated sources, 2 of them primary filings (as of 2026-07-12).

### MKS Instruments (high)  → /mks-instruments.md
- note: Uses MKS RF-power/vacuum subsystems in etch/deposition tools.
- [confirms] Wikipedia (EN, research, published 2026-01-01) https://en.wikipedia.org/wiki/MKS_Instruments: "Uses MKS RF-power/vacuum subsystems in etch/deposition tools."
- [confirms] Yole Group (EN, research, published 2025-01-01) https://www.yolegroup.com/strategy-insights/critical-subsystems-suppliers-are-the-superstars-of-the-semiconductor-supply-chain/: "Uses MKS RF-power/vacuum subsystems in etch/deposition tools."

### 어드밴스드에너지 (RF 파워) (high)  → /advanced-energy.md
- note: RF power supply source for etch/deposition tools.
- [confirms] U.S. SEC / Advanced Energy Industries (EN, filing, published 2026-02-13) https://www.sec.gov/Archives/edgar/data/927003/000110465926014731/aeis-20251231x10k.htm: "Advanced Energy's 10-K names Tokyo Electron, Applied Materials and Lam Research as major customers — the top three at ~23%/19%/12% of revenue. RF power and matching for etch/deposition tools are AE products."

### 이코르 (가스 전달) (high)  → /ichor-holdings.md
- note: Gas/chemical delivery subsystem source.
- [mentions] MatrixBCG (EN, analysis, published 2025-06-01) https://matrixbcg.com/blogs/how-it-works/ichorsystems: "Lam sources gas delivery from Ichor."

### 원익QnC (mid)  → /wonik-qnc.md
- note: Buys quartz and ceramic chamber parts from Wonik QnC — a source of etch/deposition chamber consumables.
- [confirms] Daum Research (KO, analysis, published 2025-01-01) https://m.cafe.daum.net/taejastory/UpJ3/14352: "Buys quartz and ceramic parts from Wonik QnC."
- [confirms] ZDNet Korea (KO, news, published 2020-04-22) https://zdnet.co.kr/view/?no=20200422101530: "Buys quartz and ceramic parts from Wonik QnC."

### 티씨케이 (mid)  → /tck.md
- note: Buys SiC focus rings and consumables for etch chambers from TCK — a downstream link where Lam's tool utilization propagates into TCK's recurring revenue.
- [confirms] TechWorld (KO, news, published 2025-03-01) https://www.epnc.co.kr/news/articleView.html?idxno=223429: "Buys SiC focus rings and consumables from TCK (Tokai Carbon Korea)."
- [confirms] TheElec (KO, news, published 2024-06-01) https://www.thelec.kr/news/articleView.html?idxno=11503: "Buys SiC focus rings and consumables from TCK (Tokai Carbon Korea)."

### 정밀 가스·소재 (비공개) (low)
- note: Buys process gases and specialty materials (undisclosed).
- [mentions] SEC EDGAR (EN, filing, published 2025-08-11) https://www.sec.gov/Archives/edgar/data/0000707549/000070754925000075/lrcx-20250629.htm: "10-K: depends on specialty materials."

### 부품·서브시스템 공급사 (비공개) (low)
- note: Outsources parts and subsystems for etch/deposition tools (undisclosed).
- [mentions] SEC EDGAR (EN, filing, published 2025-08-11) https://www.sec.gov/Archives/edgar/data/0000707549/000070754925000075/lrcx-20250629.htm: "10-K: relies on many suppliers."

Reverse side: https://valuechain.wiki/lam-research/customers.md · Ripple: https://valuechain.wiki/lam-research/ripple.md

---
Full node: https://valuechain.wiki/lam-research.md · JSON: https://valuechain.wiki/lam-research.json