BYD Semiconductor grabs 22.9% IGBT share

Power electronics is the part of the chip world that actually makes an EV move. Not the AI chip. Not the infotainment processor. The inverter’s power module — often built around IGBTs or, increasingly, silicon carbide — is what switches big currents fast enough to drive the motor. That is why the “BYD Semiconductor grabs 22.9% IGBT share” line matters. But the catch is that the number being passed around is old, and the real story is what BYD did with that position afterward. (zhitongcaijing.com) ### What is the 22.9% number actually measuring? It is not a fresh global market-share printout from 2026. It comes from NE Times data for China’s 2022 new-energy passenger-car main-drive power module installations, cited in later research notes. In that ranking, Infineon led with 25.0%, BYD Semiconductor had 22.9%, Starpower had 14. (zhitongcaijing.com)a auto-power-module figure, not a new worldwide IGBT-module headline. (zhitongcaijing.com) ### Why does that distinction matter? Because “IGBT share” sounds broader than it is. An IGBT module is a power-switching package used heavily in EV traction inverters, but the cited 22.9% figure refers to vehicle installations in one segment of one market. That still says something important — BYD was already one of the two biggest (zhitongcaijing.com)trols nearly a quarter of the global IGBT industry. (ne-time.cn) ### Why was BYD strong there in the first place? Basically, vertical integration. BYD is not just buying chips for its cars — it has spent years building battery, motor, control, and semiconductor capability under one roof. BYD’s own materials describe a full IDM chain in power semiconductors, from chip design and wafer manufacturing to module packaging and (ne-time.cn)oyment. That matters in automotive power devices because reliability, heat, packaging, and calibration all feed back into the next design cycle. (byd.com) ### So why are people still talking about IGBTs? Because IGBTs were the bridge technology that let Chinese EV makers localize a critical bottleneck. Back in the shortage years, Chinese suppliers gained share as Western IDMs prioritized local supply in Europe and the US and domestic Chinese automakers pushed substitution. TrendForce flagged that shift in 2023. (byd.com)pply, rising EV demand, and a homegrown supplier tied directly to a giant EV maker. (trendforce.com) ### Has BYD moved beyond IGBTs now? Yes — and that is the more current story. In March 2025, BYD said its semiconductor arm had developed and mass-produced a 1500V automotive-grade SiC chip for its “Super e-Platform,” built for 1000V architecture and megawatt charging. BYD also says it was (trendforce.com)grade SiC modules in volume. In plain English, BYD used its IGBT foothold to climb into the next power-device generation. (byd.com) ### Where does TSMC’s 2nm ramp fit in? It is related only in the broadest sense. TSMC’s official materials say N2 started volume production in 4Q25, with N2P set for volume production in the second half of 2026. That is leading-edge logic for AI, mobile, and HPC — a different lane from BYD’s automotive power semiconductors. Both stories are about semiconducto(byd.com)te nodes and the other is about power devices inside EV drivetrains. (tsmc.com) ### What should you take away from this? The viral claim is directionally right but temporally sloppy. BYD Semiconductor did hold a 22.9% share in China’s 2022 passenger-EV main-drive power-module market. The more useful read in 2026 is that BYD turned that installed-base advantage into a broader in-house power stack — and is now pushing from IGBTs into SiC and higher-voltage EV systems. (zhitongcaijing.com)