A 16 kb ferroelectric nonvolatile memory with a bit parallel architecture

Abstract

The authors describe an experimental 16-kb nonvolatile memory using two memory cells per bit with one transistor and one ferroelectric capacitor per memory cell. The RAM measures 5 mm*7 mm with 462 mu m/sup 2/ per bit. It is built in a 2- mu m CMOS n-well process and has a chip-enable access time of 200 ns. The authors also demonstrate a bit-parallel architecture in which the common plate of the capacitors runs parallel to the bit lines and connects all bits in a given column. The typical characteristics of the device are given.<>