# Who are Wolfspeed's customers? Who does Wolfspeed earn revenue from?
Canonical: https://valuechain.wiki/wolfspeed · Facet: customers · Updated: 2026-07-12T05:25:07.017+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Wolfspeed's confirmed revenue counterparties include 인피니언, ST마이크로일렉트로닉스 plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 3 revenue edges, backed by 9 dated sources, 4 of them primary filings (as of 2026-07-12).

### 인피니언 (high)  → /infineon.md
- note: A core supply relationship that survived the restructuring — the 150mm SiC wafer long-term agreement with Infineon (signed 2018) was expanded and extended in 2024 (incl. a multi-year capacity reservation) and continues after Chapter 11 (Jun-Sep 2025). The top power-semi customer and anchor of Wolfspeed's wafer volume.
- [mentions] Wolfspeed (EN, filing, published 2025-09-29) https://www.wolfspeed.com/company/news-events/news/wolfspeed-successfully-completes-financial-restructuring-emerges-as-financially-stronger-company-well-positioned-in-silicon-carbide-market/: "Supply continues after Wolfspeed emerged from Chapter 11 (Sep 29, 2025) with debt cut 70%."
- [confirms] Infineon (EN, ir, published 2025-05-01) https://www.infineon.com/cms/en/about-infineon/investor/: "Supplies SiC wafers to Infineon Technologies."
- [confirms] TheElec (KO, news, published 2025-01-01) https://www.thelec.kr/news/articleView.html?idxno=52459: "Supplies SiC wafers to Infineon Technologies."
- [confirms] e4ds (KO, news, published 2025-01-01) https://www.e4ds.com/sub_view.asp?ch=11&t=0&idx=18312: "Supplies SiC wafers and materials to Infineon Technologies."
- [confirms] SEC EDGAR (EN, filing, published 2024-08-01) https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=WOLF&type=10-K: "Supplies SiC wafers and materials to Infineon Technologies."
- [confirms] Wolfspeed / Infineon (EN, news, published 2024-01-24) https://www.wolfspeed.com/company/news-events/news/infineon-and-wolfspeed-expand-and-extend-multi-year-silicon-carbide-sic-150mm-wafer-supply-agreement/: "Infineon-Wolfspeed 150mm SiC long-term supply expanded/extended (2024, multi-year capacity reservation)."

### 채권단·전환채권자 (Chapter 11 지분전환) (high)
- note: The current ownership structure itself — after filing Chapter 11 on Jun 30, 2025 and emerging Sep 29, senior and convertible noteholders took over the company via debt-to-equity conversion. Debt cut ~70% (~$4.6B), maturities extended to 2030, annual cash interest cut 60%. Renesas converted its $2B deposit into equity/notes at a large loss.
- [confirms] Wolfspeed (EN, filing, published 2025-09-29) https://www.wolfspeed.com/company/news-events/news/wolfspeed-successfully-completes-financial-restructuring-emerges-as-financially-stronger-company-well-positioned-in-silicon-carbide-market/: "Emerged from Chapter 11 (Sep 29, 2025): debt -70%, $4.6B eliminated, maturities to 2030, cash interest -60%; creditors took equity."
- [confirms] TrendForce (EN, news, published 2025-05-27) https://www.trendforce.com/news/2025/05/27/news-wolfspeeds-rumored-bankruptcy-puts-renesas-2b-sic-supply-deal-at-risk/: "Renesas' $2B SiC deposit was converted to equity/notes, collapsing the supply deal."

### EV·전력 OEM (비공개) (mid)
- note: The demand axis, but recently weakened — a design-in pipeline across ~30 EV OEMs and 125 models ($2.9B) exists, but the EV air-pocket and low-cost Chinese SiC pushed actual SiC demand below expectations, leaving revenue short of the heavy 200mm investment (the backdrop to the bankruptcy).
- [confirms] SEC / Wolfspeed (EN, filing, published 2025-08-01) https://www.sec.gov/Archives/edgar/data/895419/000089541925000110/wolf-20250629.htm: "EV air-pocket and soft SiC demand left revenue short of 200mm investment — backdrop to Chapter 11."
- [confirms] SEC EDGAR (EN, filing, published 2024-08-01) https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=WOLF&type=10-K: "Supplies SiC wafers and materials to EV and power OEM."

### ST마이크로일렉트로닉스 (low)  → /stmicroelectronics.md
- note: A relationship of uncertain status — ST is vertically integrating SiC via its own 200mm campus in Catania, shrinking external sourcing, so the scale and contract status of any Wolfspeed wafer procurement is unclear in disclosures (a past supply link existed, but current continuation is unverified).
- [mentions] SEC / Wolfspeed (EN, filing, published 2025-08-01) https://www.sec.gov/Archives/edgar/data/895419/000089541925000110/wolf-20250629.htm: "ST is internalizing SiC (Catania 200mm), reducing external sourcing — contract status unverified."
- [confirms] SEC EDGAR (EN, filing, published 2025-02-01) https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=STM&type=20-F: "Supplies SiC wafers to STMicroelectronics."
- [confirms] ZDNet Korea (KO, news, published 2025-01-01) https://zdnet.co.kr/view/?no=20240627154505: "Supplies SiC wafers to STMicroelectronics."
- [confirms] e4ds (KO, news, published 2025-01-01) https://www.e4ds.com/sub_view.asp?ch=11&t=0&idx=18312: "Supplies SiC wafers and materials to STMicroelectronics."
- [confirms] SEC EDGAR (EN, filing, published 2024-08-01) https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=WOLF&type=10-K: "Supplies SiC wafers and materials to STMicroelectronics."

Reverse side: https://valuechain.wiki/wolfspeed/suppliers.md · Ripple: https://valuechain.wiki/wolfspeed/ripple.md

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