Kepler Computing, which claims its 3D stacking and new material can increase HBM and SRAM density without relying on EUV, emerges from stealth with $468M (Lauren Goode/Wired)

Kepler Computing has raised $468 million after emerging from stealth, asserting that its 3-D stacking technique and novel material can boost HBM and SRAM densities without relying on EUV lithography. The company says the approach enables higher memory capacity per chip while reducing manufacturing complexity.