Power Semiconductors
SiC / GaN / IGBT vendor dynamics, supply chain, and procurement risk
SiC Wafer Geopolitics: What Doosan's Acquisition of SK Siltron Signals
South Korea's Doosan announces a full 100% stake acquisition of SK Siltron in a deal valued at approximately 5 trillion KRW. We examine the vertical integration strategy moving forward despite a 414 billion KRW impairment in the SiC business and 1.2 trillion KRW in covenant issues, and place it in the context of Japan-Korea supply chain cooperation.
Wide Bandgap Semiconductor Manufacturing Cost Trends — Reading the SiC and GaN Cost Curves
The shift to 8-inch SiC wafers and improvements in GaN-on-Si epitaxial growth are reshaping the cost structure of wide bandgap semiconductors. We examine the outlook for when the price gap versus silicon will narrow, and the key manufacturing technology factors driving cost reduction.
Infineon and SK Siltron Sign SiC Wafer Supply Agreement
In 2025, Infineon signed a multi-year SiC wafer supply agreement with SK Siltron, symbolizing a structural shift in the SiC supply chain where wafer procurement secured through single long-term contracts will determine the competitiveness of power semiconductors.
Mitsubishi Electric and Coherent Joint Development of 8-inch SiC Substrates
Mitsubishi Electric and Coherent, a leading player in optical components and semiconductor materials, have agreed to jointly develop 8-inch (200mm) SiC wafers, marking a pivotal shift from the current 6-inch (150mm) standard that will fundamentally alter manufacturing cost structures by increasing chip yield per wafer.
Renesas and Wolfspeed Sign 10-Year SiC Wafer Supply Agreement
Renesas Electronics and Wolfspeed have signed a 10-year long-term supply agreement for SiC wafers, a duration that highlights the significance of this unprecedented pact in the semiconductor industry, moving beyond a buyer's market for SiC wafer procurement.
SiC 8-inch Wafer Supply System
While SiC power semiconductor wafer sizes are transitioning from 6-inch (150mm) to 8-inch (200mm), a significant gap remains between the commencement of this transition and the establishment of a stable supply chain; when assessing the 8-inch wafer supply chain from a design and procurement perspective, the pace of transition is a critical factor.
SiC Wafer Price Trends and 2026 Outlook
The SiC power semiconductor market in 2024 saw slower-than-expected demand growth, prompting some manufacturers to revise production plans. This "plateau" situation directly impacts a wide range of decisions, from cost calculations for device design to the reassessment of procurement strategies, raising questions about wafer price movements. To discuss the outlook for 2026, we must first consider
Navigating SiC Wafer Procurement Risks
As the adoption of SiC (Silicon Carbide) power semiconductors accelerates, securing a stable supply of wafers is increasingly becoming the biggest bottleneck after design completion, as even the most advanced devices selected during the design phase cannot be mass-produced without available wafers; therefore, to manage supply chain risks, it is crucial to structurally understand "how and where bottlenecks occur in each process.
Wolfspeed: Managing Risks and Alternative Sourcing Strategies
Wolfspeed's financial struggles have long been a topic of industry discussion, but a significant gap remains between recognizing "management risk" and deciding "how to address it next." This article aims to bridge that gap by outlining the structure of the risks and exploring practical alternative sourcing options.