Carbon engineering turns insulating boron nitride into a wafer-scale p-type semiconductor - EurekAlert!

Turning insulating BN into a wafer-scale p-type semiconductor is not a material discovery—it is band-structure re-engineering via carbon chemistry. Wafer-scale validation signals CVD growth and doping have cleared the lab-to-fab threshold, directly threatening GaN and SiC dominance in power electronics. Upstream, BN single-crystal substrates and high-quality CVD reactors will see the first valuation re-rating, echoing the 2015 SiC 6-to-8-inch transition that reshaped Wolfspeed and Coherent. Downstream, low-resistance p-type BN could penetrate the 650V–1200V MOSFET and HEMT space—Infineon and Navitas' core territory. Supply-chain risk is structural: BN process compatibility with existing Si/GaN lines is near zero. Certification cycles run 18–24 months minimum, and the equipment ecosystem remains immature, suppressing near-term yield economics. The 12–24-month long tail will not be the device itself. It will be standards and IP. Whoever locks down the p-type BN doping patent pool and test protocols first captures pricing power over the next generation of wide-bandgap semiconductors. The window is narrow; players who treat this as a materials footnote will cede platform-level ground to those who treat it as a systemic reset.