Implementation of Boolean Logic Functions in Charge Trap Flash for In-Memory Computing

Abstract

The use of nonvolatile arbitrary logic functions through emerging nonvolatile memory devices has been proposed to implement in-memory computing architecture. Here, in this paper, for the first time, we have proposed a nonvolatile stateful logic methodology based on a charge trap flash (CTF) memory device. Using multi-bit operation, functionally complete Boolean logic functions are experimentally demonstrated. The CTF devices exhibit perfect CMOS compatibility and excellent reliability as compared to other emerging memory devices. In addition, they do not require an additional select transistor, which leads to a more compact array configuration. Our CTF device and operation method may be a promising solution for the hardware implementation of non-von Neumann computing systems.