- 专利标题: Resistive random access memory erase techniques and apparatus
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申请号: US17242015申请日: 2021-04-27
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公开(公告)号: US11790999B2公开(公告)日: 2023-10-17
- 发明人: Jeremy Guy , Sung Hyun Jo , Hagop Nazarian , Ruchirkumar Shah , Liang Zhao
- 申请人: CROSSBAR, INC.
- 申请人地址: US CA Santa Clara
- 专利权人: CROSSBAR, INC.
- 当前专利权人: CROSSBAR, INC.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Wegman Hessler Valore
- 主分类号: G11C16/34
- IPC分类号: G11C16/34 ; G11C16/16 ; G11C16/26 ; G11C11/56 ; G11C13/00
摘要:
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.
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