Wide-Bandgap Power (GaN & SiC) — Supply-Chain Map
Gallium-nitride and silicon-carbide devices are rewiring EV powertrains, fast charging, and power supplies. See which pioneers, incumbents, and challengers supply and compete with one another.
Gallium-nitride and silicon-carbide devices switch faster and run cooler than traditional silicon power parts, enabling more efficient electric-vehicle powertrains, fast chargers, and compact power supplies. The field mixes specialized wide-bandgap pioneers with established power-semiconductor firms expanding into the same materials. As electrification accelerates, these companies increasingly meet as both partners and rivals along the power-electronics supply chain.
Dark nodes are this theme’s core companies. Click any company to open its page · drag/zoom to explore · hover a line to read the source quote. Green = supplies · orange dashed = competes · blue = partners · grey dashed = suspended · how to read this data.
Core companies
- STMicroelectronics · 28 relationships
- Alpha & Omega · 23 relationships
- Power Integrations · 20 relationships
- onsemi · 20 relationships
- Wolfspeed · 19 relationships
- Navitas · 16 relationships
- Texas Instruments · 16 relationships
- Infineon · 14 relationships
- Monolithic Power · 13 relationships
- ROHM · 6 relationships
- Innoscience · 3 relationships
Supply & manufacturing relationships (37)
Showing 30 of 37 — strongest disclosure signals first, then most recent. The map above and each company page hold the full set.
“In 2025, 2024 and 2023, the Company’s largest customer, Apple, represented 17.7 %, 14.5 % and 12.3 % of consolidated net revenues”— STM 20-F, filed 2026-02-26 · View source filing ↗
“The following customers represented 10% or more of our net revenue for the respective years: Customer 2025 2024 2023 Avnet 32 % 30 % 27 % Salcomp Group 11 % * 10 % Honestar Technologies Co., Ltd. * 11 % 18 %”— POWI 10-K, filed 2026-02-06 · View source filing ↗
“The following customers represented 10% or more of our net revenue for the respective years: Customer 2025 2024 2023 Avnet 32 % 30 % 27 % Salcomp Group 11 % * 10 % Honestar Technologies Co., Ltd. * 11 % 18 %”— POWI 10-K, filed 2026-02-06 · View source filing ↗
“The following customers represented 10% or more of our net revenue for the respective years: Customer 2025 2024 2023 Avnet 32 % 30 % 27 % Salcomp Group 11 % * 10 % Honestar Technologies Co., Ltd. * 11 % 18 %”— POWI 10-K, filed 2026-02-06 · View source filing ↗
“In July 2023, the Company entered into the CRD Agreement with a customer, pursuant to which the customer agreed to provide the Company up to $2.0 billion in unsecured deposits. … with the potential for an increased variable rate of either 10% or 15% in connection with any inability of the Company to satisfy supply targets under a ten-year wafer supply agreement with the same customer. … Unsecured Customer Refundable Deposit Agreement, dated as of July 5, 2023, between Wolfspeed, Inc. and Renesas Electronics America Inc.”— WOLF 10-K, filed 2025-08-26 · View source filing ↗
“Our primary customers, in terms of our sales revenues, include premier integrated device manufacturers, such as Texas Instruments and Intel, plus leading fabless design companies, such as MediaTek, Realtek and Novatek.”— UMC 20-F, filed 2026-04-30 · View source filing ↗
“For GaN products, our existing wafer fabrication partner is TSMC located in Taiwan.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our US based GaN fabrication partner is GlobalFoundries.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our major customers include (in alphabetical order) Apple, Bosch, Continental, Denso, HP, Mobileye, Samsung, SpaceX, Tesla and Vitesco.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“On February 6, 2026, the Company issued warrants to Amazon Web Services ("AWS") for the acquisition of up to 24.8 million ordinary shares of the Company. The warrants will vest in tranches over the term of the agreement, with vesting substantially tied to payments for the Company's products and services purchased by AWS and its affiliates.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“On January 31, 2025, we acquired Infineon Technologies AG's (“Infineon”) automated test equipment technology and associated development team (“AET”) based in Regensburg, Germany for a total purchase price of 17.6 million Euros, equivalent to $18.3 million. … AET adds resources and expertise to our company and strengthens the relationship between us and this key customer.”— TER 10-K, filed 2026-02-19 · View source filing ↗
“such as AMD, Amlogic, Broadcom, CXMT, IBM, Infineon, Kioxia, Marvell, MediaTek, Micron, Nanya, Nuvoton, NVIDIA, Phison, Qualcomm, Samsung, Silicon Motion, SK hynix, Socionext, STMicroelectronics, Toshiba, Western Digital and Winbond have licensed our patents.”— RMBS 10-K, filed 2026-02-18 · View source filing ↗
“such as AMD, Amlogic, Broadcom, CXMT, IBM, Infineon, Kioxia, Marvell, MediaTek, Micron, Nanya, Nuvoton, NVIDIA, Phison, Qualcomm, Samsung, Silicon Motion, SK hynix, Socionext, STMicroelectronics, Toshiba, Western Digital and Winbond have licensed our patents.”— RMBS 10-K, filed 2026-02-18 · View source filing ↗
“With two of our major suppliers, Seiko Epson Corporation (“Epson”) and ROHM Lapis Semiconductor Co., Ltd. (“Lapis”) we have wafer supply agreements based in U.S. dollars”— POWI 10-K, filed 2026-02-06 · View source filing ↗
“We have established direct relationships with key OEMs, including Dell Inc., Hewlett-Packard Company, Samsung Group, and Stanley Black & Decker, Inc., most of whom we serve through our distributors and ODMs.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“We have established direct relationships with key OEMs, including Dell Inc., Hewlett-Packard Company, Samsung Group, and Stanley Black & Decker, Inc., most of whom we serve through our distributors and ODMs.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“We have established direct relationships with key OEMs, including Dell Inc., Hewlett-Packard Company, Samsung Group, and Stanley Black & Decker, Inc., most of whom we serve through our distributors and ODMs.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“We have established direct relationships with key OEMs, including Dell Inc., Hewlett-Packard Company, Samsung Group, and Stanley Black & Decker, Inc., most of whom we serve through our distributors and ODMs.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“Our ODM customers include Compal Electronics, Inc., Foxconn, Quanta Computer Incorporated, Wistron Corporation and Delta Electronics.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“Our ODM customers include Compal Electronics, Inc., Foxconn, Quanta Computer Incorporated, Wistron Corporation and Delta Electronics.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“Our ODM customers include Compal Electronics, Inc., Foxconn, Quanta Computer Incorporated, Wistron Corporation and Delta Electronics.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
“Our ODM customers include Compal Electronics, Inc., Foxconn, Quanta Computer Incorporated, Wistron Corporation and Delta Electronics.”— AOSL 10-K, filed 2025-08-28 · View source filing ↗
Partnerships & collaborations (9)
“in November 2025, we announced a long-term strategic partnership with GlobalFoundries to develop and deliver advanced GaN solutions for critical applications in high power markets”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“the new 200mm SiC device manufacturing joint venture with Sanan Optoelectronics in Chongqing, China, as we announced on June 7 2023”— STM 20-F, filed 2026-02-26 · View source filing ↗
“Our assembly and test operations facility located in Leshan, China, which is owned by Leshan-Phoenix Semiconductor Company Limited, a joint venture company in which we own 80% of the outstanding equity interests ("Leshan"). The financial and operating results of Leshan have been consolidated in our financial statements. Our joint venture partner is Leshan Radio Company Ltd.”— ON 10-K, filed 2026-02-09 · View source filing ↗
“we entered into a broad patent cross-license with Infineon Technologies AG.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“expanding our collaboration with Powerchip Semiconductor Manufacturing Corporation”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“We announced an expanded strategic collaboration with Amazon Web Services (AWS) through a multi-year, multi-billion USD commercial engagement serving several product categories, to enable new high performance compute infrastructure for cloud and AI data centers.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“first product of ST’s collaboration with Qualcomm Technologies, Inc. announced in 2024, to simplify implementing wireless connectivity in systems containing STM32 MCUs.”— STM 20-F, filed 2026-02-26 · View source filing ↗
“the joint 300mm semiconductor manufacturing facility with GlobalFoundries Inc in Crolles, France”— STM 20-F, filed 2026-02-26 · View source filing ↗
“On March 31, we announced the signature of an agreement on GaN technology development and manufacturing with Innoscience, the world leader in 8” GaN-on-Si (gallium nitride on silicon) high-performance low-cost manufacturing.”— STM 20-F, filed 2026-02-26 · View source filing ↗
Competitive landscape (97)
Showing 25 of 97 — strongest disclosure signals first, then most recent. The map above and each company page hold the full set.
“Our primary competitors include, but are not limited to, AKM Semiconductor Inc., Analog Devices Inc., QUALCOMM Incorporated, Realtek Semiconductor Corporation, Renesas Electronics Corporation, Shanghai Awinic Technology Co., Ltd., … Shenzhen Goodix Technology Co, Ltd., Skyworks Solutions Inc., ST Microelectronics N.V., Synaptics Incorporated and Texas Instruments, Inc.”— CRUS 10-K, filed 2026-05-21 · View source filing ↗
“Our primary competitors include, but are not limited to, AKM Semiconductor Inc., Analog Devices Inc., QUALCOMM Incorporated, Realtek Semiconductor Corporation, Renesas Electronics Corporation, Shanghai Awinic Technology Co., Ltd., … Shenzhen Goodix Technology Co, Ltd., Skyworks Solutions Inc., ST Microelectronics N.V., Synaptics Incorporated and Texas Instruments, Inc.”— CRUS 10-K, filed 2026-05-21 · View source filing ↗
“HPA competes primarily with Analog Devices, Inc.; Axiro Semiconductor Private Limited; MACOM Technology Solutions Holdings, Inc.; Monolithic Power Systems, Inc.; Renesas Electronics Corporation; Scientific Components Corporation (d/b/a Mini-Circuits); Silergy Corp; and Texas Instruments, Inc.”— QRVO 10-K, filed 2026-05-08 · View source filing ↗
“HPA competes primarily with Analog Devices, Inc.; Axiro Semiconductor Private Limited; MACOM Technology Solutions Holdings, Inc.; Monolithic Power Systems, Inc.; Renesas Electronics Corporation; Scientific Components Corporation (d/b/a Mini-Circuits); Silergy Corp; and Texas Instruments, Inc.”— QRVO 10-K, filed 2026-05-08 · View source filing ↗
“We also compete with the foundry operation services of some IDMs, such as Texas Instruments, Inc. (“Texas Instruments”), Samsung Electronics Co., Ltd. (“Samsung”) and, more recently, Intel.”— GFS 20-F, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“We are in direct and active competition, with respect to one or more of our product lines, with several manufacturers of such products. We consider our primary competitors to include Analog Devices, Infineon Technologies, NXP Semiconductors, ON Semiconductor, Power Integrations, Renesas Electronics, ROHM Semiconductor, Semtech, STMicroelectronics and Texas Instruments.”— MPWR 10-K, filed 2026-02-27 · View source filing ↗
“Our primary GaN competitors include Infineon Technologies AG, Power Integrations, Inc., Texas Instruments Incorporated, Innoscience (Suzhou) Semiconductor Co., Ltd., Renesas Electronics Corp., and Efficient Power Conversion Corporation (EPC).”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary GaN competitors include Infineon Technologies AG, Power Integrations, Inc., Texas Instruments Incorporated, Innoscience (Suzhou) Semiconductor Co., Ltd., Renesas Electronics Corp., and Efficient Power Conversion Corporation (EPC).”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary GaN competitors include Infineon Technologies AG, Power Integrations, Inc., Texas Instruments Incorporated, Innoscience (Suzhou) Semiconductor Co., Ltd., Renesas Electronics Corp., and Efficient Power Conversion Corporation (EPC).”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary GaN competitors include Infineon Technologies AG, Power Integrations, Inc., Texas Instruments Incorporated, Innoscience (Suzhou) Semiconductor Co., Ltd., Renesas Electronics Corp., and Efficient Power Conversion Corporation (EPC).”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary GaN competitors include Infineon Technologies AG, Power Integrations, Inc., Texas Instruments Incorporated, Innoscience (Suzhou) Semiconductor Co., Ltd., Renesas Electronics Corp., and Efficient Power Conversion Corporation (EPC).”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary GaN competitors include Infineon Technologies AG, Power Integrations, Inc., Texas Instruments Incorporated, Innoscience (Suzhou) Semiconductor Co., Ltd., Renesas Electronics Corp., and Efficient Power Conversion Corporation (EPC).”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary SiC competitors include Infineon, Wolfspeed, Inc., ON Semiconductor Corporation, ROHM Co., Ltd., Qorvo, Inc., and STMicroelectronics International N.V.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary SiC competitors include Infineon, Wolfspeed, Inc., ON Semiconductor Corporation, ROHM Co., Ltd., Qorvo, Inc., and STMicroelectronics International N.V.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary SiC competitors include Infineon, Wolfspeed, Inc., ON Semiconductor Corporation, ROHM Co., Ltd., Qorvo, Inc., and STMicroelectronics International N.V.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗
“Our primary SiC competitors include Infineon, Wolfspeed, Inc., ON Semiconductor Corporation, ROHM Co., Ltd., Qorvo, Inc., and STMicroelectronics International N.V.”— NVTS 10-K, filed 2026-02-27 · View source filing ↗