2 ms·
> 1T-1C SRAM Aka eDRAM? It was a thing back on 14nm node, but AFAIR not so much anymore. The 1C part is hard to get right in a way that is compatible with a lo
by tliltocatl 16d ago
> 1T-1C SRAM
Aka eDRAM? It was a thing back on 14nm node, but AFAIR not so much anymore. The 1C part is hard to get right in a way that is compatible with a logic process.
- to11mtm 16d agoIt gets confusing... eDRAM isn't the same as 1T-SRAM, which isn't quite the same as 1T-1C SRAM... But overall they run into the same problems that you mention; it's just too hard to get a capacitor in play. There is Zeno Semi's Bi-SRAM, buuuut it hasn't seemed to catch on for one reason or another.
- tliltocatl 16d ago> Bi-SRAM Looks cool, but isn't it by definition planar process-only, no FinFET for you?
- to11mtm 14d agoI'll admit I am not well versed on this subject on any measure, but there is this [0] paper indicating FinFET is doable, although IDK if there's any sort of hand-waving or other limitations involved. [0] - https://ieeexplore.ieee.org/document/8614555 https://ieeexplore.ieee.org/document/8614555