A Look Back at Cray-3: Bare Dies, Gold-Pillar Interconnects and Immersion Cooling

Historical materials on the Cray-3 supercomputer detail its radical design: bare dies interconnected by gold pillars, laser-welded vertical jumps for 3D stacking, and immersion cooling, along with Seymour Cray's own talk on gallium arsenide.

2026-10-28 ~ 2026-10-28 · 2 related posts

• A forgotten supercomputer design: bare dies, gold post interconnects, 3D stacking, immersion cooling — jwt0625 · 2026-10-28
• Seymour Cray on gallium arsenide: Cray-3 used bare dies, gold posts, immersion cooling — jwt0625 · 2026-10-28