A 171k-LUT Nonvolatile FPGA using Cu Atom-Switch Technology in 28nm CMOS
- Resource Type
- Conference
- Authors
- Nebashi, Ryusuke; Banno, Naoki; Miyamura, Makoto; Bai, Xu; Funahashi, Kazunori; Okamoto, Koichiro; Iguchi, Noriyuki; Numata, Hideaki; Sugibayashi, Tadahiko; Sakamoto, Toshitsugu; Tada, Munehiro
- Source
- 2020 30th International Conference on Field-Programmable Logic and Applications (FPL) FPL Field-Programmable Logic and Applications (FPL), 2020 30th International Conference on. :323-327 Aug, 2020
- Subject
- Computing and Processing
Degradation
Nonvolatile memory
Sociology
Layout
Switches
Routing
CMOS technology
- Language
- ISSN
- 1946-1488
A nonvolatile FPGA using atom-switch crossbars is implemented in a 28nm CMOS. The depopulated atom-switch crossbar with double-gate layout achieves 75% area saving. The routability degradation due to the depopulation is mitigated by a modified routing architecture of mixed segment lengths with thinning out connection block populations. To our knowledge, the novel FPGA provides the largest logic capacity of 171k lookup-table (LUT) among 3D-FPGAs based on monolithically integrated nonvolatile switch and memory. The operating frequency and dynamic power are significantly improved as compared to conventional atom-switch FPGAs.