YC S26 Startup Kara Grows Diamond Wafers to Cool High-Density AI Chips
Scobleizer · x · 2026-08-12
Y Combinator S26 startup Kara has launched to grow ultra-high-purity diamond wafers for AI chips, spacecraft, and quantum hardware.
Diamond can transfer heat five times faster than copper, effectively solving the thermal bottleneck of current silicon chips. The founding team combines a fifth-generation diamantaire, a diamond quantum sensing expert from Berkeley Lab, and an ML engineer. Beyond thermal management, Kara aims to eventually unlock diamond as the ultimate semiconductor.
Related event: YC-backed Kara Launches Diamond Wafers for AI Chip Cooling(2 posts)→
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