International Business Machines Corporation
GAIN CELL MEMORY BASED PHYSICALLY UNCLONABLE FUNCTION

Abstract:

A method is presented for employing a physically unclonable function (PUF) structure for chip authentication. The method includes connecting a plurality of gain cells to either a first multiplexer or a second multiplexer and receiving outputs from the first and second multiplexers by a current sense amplifier. The plurality of gain cells can be either two-transistor gain cell memories or three-transistor gain cell memories.