SK Hynix is testing the performance of Tokyo Electron’s cryogenic etching equipment, TheElec has learned.The South Korean memory chipmaker has sent test wafers to the fab equipment maker for the tests instead of installing them in its own fab, sources said.Tokyo Electron’s new kit etches at high spe

SK Hynix reportedly says 3D NAND chipmaking goes subzero as higher flash memory stacks must be produced at -70C temps.