公开(公告)号：GB2592813A

公开(公告)日：2021-09-08

申请号：GB202106235

申请日：2019-09-30

Applicant: IBM

Inventor： SEYOUNG KIM ,  HYUNGJUN KIM ,  TAYFUN GOKMEN ,  MALTE RASCH

IPC: G06F3/00 ,  G06N3/08 ,  G11C11/00

Abstract: Zero-shifting techniques in analog crosspoint arrays are provided. In one aspect, an analog array-based vector-matrix multiplication includes: a weight array connected to a reference array, each including a crossbar array (802, 804) having a set of conductive row wires (806a, 806b) and a set of conductive column wires (808a, 808b) intersecting the set of conductive row wires (806a, 806b), and optimizable crosspoint devices (810a, 810b) at intersections of the set of conductive column wires (808a, 808b) and the set of conductive row wires (806a, 806b). A method for analog array-based vector-matrix computing is also provided that includes: applying repeated voltage pulses to the crosspoint devices (810a) in the weight array until all of the crosspoint devices (810a) in the weight array converge to their own symmetry point; and copying conductance values for each crosspoint devices (810a) from the weight array to the reference array.

公开(公告)号：GB2592813B

公开(公告)日：2022-05-11

申请号：GB202106235

申请日：2019-09-30

Applicant: IBM

Inventor： SEYOUNG KIM ,  HYUNGJUN KIM ,  TAYFUN GOKMEN ,  MALTE RASCH

IPC: G06F3/00 ,  G06N3/063 ,  G06N3/08

Abstract: Zero-shifting techniques in analog crosspoint arrays are provided. In one aspect, an analog array-based vector-matrix multiplication includes: a weight array connected to a reference array, each including a crossbar array having a set of conductive row wires and a set of conductive column wires intersecting the set of conductive row wires, and optimizable crosspoint devices at intersections of the set of conductive column wires and the set of conductive row wires. A method for analog array-based vector-matrix computing is also provided that includes: applying repeated voltage pulses to the crosspoint devices in the weight array until all of the crosspoint devices in the weight array converge to their own symmetry point; and copying conductance values for each crosspoint device from the weight array to the reference array.