Crossbar, Inc.

Jeremy Guy

Hagop A Nazarian

Sung Hyun Jo

Sang Thanh Nguyen

Ruchirkumar Shah

Zhi Li

Liang Zhao

Stochastic or near-stochastic physical characteristics of resistive switching devices are utilized for generating data distinct to those resistive switching devices. The distinct data can be utilized for applications related to electronic identification. As one example, data generated from physical characteristics of resistive switching devices on a semiconductor chip can be utilized to form a distinct identifier sequence for that semiconductor chip, utilized for verification applications for communications with the semiconductor chip or utilized for generating cryptographic keys or the like for cryptographic applications.

Distinct chip identifier sequence utilizing unclonable characteristics of resistive memory on a chip

A method for erasing a memory cell includes applying a first erase to memory cells to erase the memory cells, wherein first memory cells are in a weakly erased state in response to the first erase, and wherein second memory cells are in a normally erased state in response to the first erase, thereafter applying a first weak program to the memory cells, wherein the second memory cells enter a programmed state and the third memory cells remain in the erased state in response to the first weak program, and thereafter applying a read to the memory cells to identify the second memory cells, and applying a second erase to the second memory cells to thereby erase the second memory cells.

Resistive random access memory erase techniques and apparatus

Resistive random access memory program and erase techniques and apparatus

Growing community of inventors

San Jose, CA, United States of America

Jeremy Guy