# Who does Infineon Technologies pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/infineon · Facet: suppliers · Updated: 2026-07-12T06:26:55.921118+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Infineon Technologies's confirmed suppliers/cost counterparties include 아르테리스, 울프스피드, Synopsys plus 3 undisclosed/aggregate relationships. Per the valuechain.wiki graph: 6 cost edges, backed by 8 dated sources, 4 of them primary filings (as of 2026-07-12).

### 아르테리스 (high)  → /arteris.md
- note: Adopted Arteris NoC (network-on-chip) interconnect IP for automotive MCUs (2024) — core IP designing on-chip data flow, on which more advanced automotive SoCs depend.
- [confirms] SEC EDGAR (EN, filing, published 2025-02-01) https://www.sec.gov/Archives/edgar/data/1667011/000166701125000009/exhibit991fy248-k.htm: "Infineon licensed Arteris interconnect IP."

### 울프스피드 (high)  → /wolfspeed.md
- note: Sources SiC wafers and materials from Wolfspeed under long-term contract — as one of its largest SiC material suppliers, Wolfspeed's financial or ramp troubles transmit straight into Infineon's supply risk.
- [confirms] Infineon (EN, ir, published 2025-05-01) https://www.infineon.com/cms/en/about-infineon/investor/: "Buys SiC wafers from Wolfspeed."
- [confirms] e4ds (KO, news, published 2025-01-01) https://www.e4ds.com/sub_view.asp?ch=11&t=0&idx=18312: "Buys SiC wafers and materials from Wolfspeed."
- [confirms] TheElec (KO, news, published 2025-01-01) https://www.thelec.kr/news/articleView.html?idxno=52459: "Buys SiC wafers from Wolfspeed."
- [confirms] SEC EDGAR (EN, filing, published 2024-08-01) https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=WOLF&type=10-K: "Buys SiC wafers and materials from Wolfspeed."

### 마벨 자동차 이더넷 사업부 (2025.8 ~$2.5B 인수) (high)
- note: Closed the acquisition of Marvell's Automotive Ethernet business for about $2.5B in cash in August 2025 — absorbing an automotive-Ethernet portfolio to strengthen the connectivity layer for ADAS and software-defined vehicles; financed primarily through debt (a driver of FY2025 FCF of -€1.05bn).
- [confirms] Infineon Technologies (EN, filing, published 2025-11-12) https://www.infineon.com/press-release/2025/infxx202511-021: "Infineon FY2025 (ended Sep 2025): group revenue €14.662bn (-2% YoY), Segment Result €2.56bn at 17.5% margin. Segments: Automotive (ATV) €7,402m (-4%), Power & Sensor Systems (PSS) €4,208m (+11%, driven by server/AI-datacenter power), Green Industrial Power (GIP) €1,631m (-16%, subsidy-expiry headwind), Connected Secure Systems (CSS) €1,421m (-6%). AI-power revenue target raised to ~€1.5bn. Acquired Marvell's Automotive Ethernet business in Aug 2025 (drove FCF to -€1.05bn). Moderate FY2026 growth expected."

### Synopsys (mid)  → /synopsys.md
- note: Licensing cost for Synopsys EDA tools and IP — essential infrastructure for advanced automotive and power-chip design; without the EDA roadmap, new-product development stalls.
- [confirms] SEC EDGAR (EN, filing, published 2025-12-22) https://www.sec.gov/Archives/edgar/data/883241/000088324125000028/snps-20251031.htm: "infineon designs chips on synopsys EDA tools and IP."
- [confirms] SemiAnalysis (EN, research, published 2025-09-01) https://newsletter.semianalysis.com/p/eda-market-primer: "infineon designs chips on synopsys EDA tools and IP."

### SK실트론 (mid)  → /sk-siltron.md
- note: Sources SiC wafers from SK Siltron under long-term contract — the upstream bottleneck for scaling SiC power devices, where wafer yield and supply directly cap Infineon's SiC ramp.
- [confirms] Infineon (EN, ir, published 2025-05-01) https://www.infineon.com/cms/en/about-infineon/investor/: "Buys SiC wafers from SK Siltron."
- [confirms] TheElec (KO, news, published 2025-01-01) https://www.thelec.kr/news/articleView.html?idxno=52459: "Buys SiC wafers from SK Siltron."

### Cadence Design Systems (mid)  → /cadence.md
- note: Licensing cost for Cadence EDA tools and IP — with Synopsys, an EDA-tool duopoly, so tool dependence constrains design cost and speed.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-19) https://www.sec.gov/Archives/edgar/data/813672/000081367226000016/cdns-20251231.htm: "infineon designs chips on cadence EDA tools and IP."
- [confirms] SemiAnalysis (EN, research, published 2025-09-01) https://newsletter.semianalysis.com/p/eda-market-primer: "infineon designs chips on cadence EDA tools and IP."

### 전공정 장비 (비공개) (low)
- note: Parts, materials and R&D (undisclosed).
- [confirms] Infineon (EN, ir, published 2025-05-01) https://www.infineon.com/cms/en/about-infineon/investor/: "Parts, materials and R&D (undisclosed)."

Reverse side: https://valuechain.wiki/infineon/customers.md · Ripple: https://valuechain.wiki/infineon/ripple.md

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Full node: https://valuechain.wiki/infineon.md · JSON: https://valuechain.wiki/infineon.json