公开(公告)号：US20230326507A1

公开(公告)日：2023-10-12

申请号：US18332674

申请日：2023-06-09

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Gaurav GUPTA ,  Zhiqiang WU ,  Yih WANG

IPC: G11C11/16

CPC classification number: G11C11/1673 ,  G11C11/161

Abstract: The disclosed MTJ read circuits include a current steering element coupled to the read path. At a first node of the current steering element, a proportionally larger current is maintained to meet the requirements of a reliable voltage or current sensing. At a second node of the current steering element, a proportionally smaller current is maintained, which passes through the MTJ structure. The current at the first node is proportional to the current at the second node such that sensing the current at the first node infers the current at the second node, which is affected by the MTJ resistance value.