公开(公告)号：US20180005701A1

公开(公告)日：2018-01-04

申请号：US15706586

申请日：2017-09-15

Applicant: Silicon Storage Technology, Inc.

Inventor： Xiao Yan Pi ,  Xiaozhou Qian ,  Kai Man Yue ,  Yao Zhou ,  Yaohua Zhu

IPC: G11C16/28 ,  G11C7/12 ,  G11C29/02 ,  G11C16/08 ,  G11C7/14 ,  G11C16/24 ,  G11C7/06 ,  G11C29/50 ,  G11C29/12

CPC classification number: G11C16/28 ,  G11C7/062 ,  G11C7/12 ,  G11C7/14 ,  G11C16/08 ,  G11C16/24 ,  G11C29/025 ,  G11C2029/1204 ,  G11C2029/5006

Abstract: An improved sensing circuit is disclosed that utilizes a bit line in an unused memory array to provide reference values to compare against selected cells in another memory array. A circuit that can perform a self-test for identifying bit lines with leakage currents about an acceptable threshold also is disclosed.