A 2K×8-bit static RAM

High density 2K×8-bit fully static RAM has been developed. Memory cell size of 23×27µm results in the chip size of 3.75×4.19mm, which is nearly equal to that of existing 4K-bit static RAM's. High packing density is realized by layout of 3µm photolithography and double-level polysilicon process permitting fabrication of memory load resistors upon driver MOSFET's.

[1]  V. McKenny.  A 5 V-only 4-K static RAM , 1977, 1977 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.