The first 300-millimeter power silicon carbide (SiC) wafer

sshah03 125 points 66 comments November 09, 2026
www.infineon.com · View on Hacker News

Discussion Highlights (7 comments)

bradknowles

The summary at the top of that page is: Infineon marks innovation milestone with world’s first 300-millimeter power silicon carbide (SiC) wafer PBusiness & Financial Press Nov 09, 2026 Infineon presents industry-first functional power devices processed on 300-millimeter silicon carbide wafers Technological breakthrough underlines Infineon’s innovation strength and leadership in power semiconductors and wide-bandgap technologies 300-millimeter SiC process feasibility lays the foundation for secure, future-proof SiC supply to customers in automotive, renewable energy, industrial and AI data center applications Infineon will present the first processed 300-millimeter SiC wafer to the public at the electronica trade show starting 10 November 2026 in Munich

novaRom

Can you guys restart DRAM production in Europe again? If 20 or so years ago it was possible, today is the best economical opportunity.

alephnerd

This may not appear sexy but this is a huge deal. Power semiconductors are critical for most NatSec and industrial usecases. You can likely live without a new gaming rig. You likely cannot live without replaceable parts for trucks and cars.

LoganDark

How does this compare to GaN? Better or worse?

mercurywells

I thought Wolfspeed was already at 300mm at the start of this year?

johntb86

Anyone know why it took so long for them to transition to 300mm? As mentioned in the article, they're mainly using existing 300mm equipment designed for silicon, which transitioned years ago. I imagine some process steps are different (mainly growing to larger boule, but probably others), but it doesn't seem like they would be huge blockers.

BrandiATMuhkuh

What surprises me with Infineon is that they seem to not work on a LLM on a chip. In particular that here in Linz Infineon, Apple's 5G modem designer and the Johannes Kepler University with Sepp Hochreiter (Inventor of LSTM) are just next to each other. I watched a interview of Infineon head of AI just recently, and I was like excited to hear about some cool hardware. And all he did is talk about how he uses LLMs.

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