Invention Grant
- Patent Title: Resistive random access memory program and erase techniques and apparatus
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Application No.: US16291467Application Date: 2019-03-04
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Publication No.: US10998064B2Publication Date: 2021-05-04
- Inventor: Jeremy Guy , Sung Hyun Jo , Hagop Nazarian , Ruchirkumar Shah , Liang Zhao
- Applicant: Crossbar, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Crossbar, Inc.
- Current Assignee: Crossbar, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Wegman Hessler
- Main IPC: G11C16/34
- IPC: G11C16/34 ; G11C16/16 ; G11C16/26 ; G11C11/56 ; G11C13/00

Abstract:
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.
Public/Granted literature
- US20190272882A1 RESISTIVE RANDOM ACCESS MEMORY PROGRAM AND ERASE TECHNIQUES AND APPARATUS Public/Granted day:2019-09-05
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