- 专利标题: COMPOSITE MATERIAL PHASE CHANGE MEMORY CELL
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申请号: US17646210申请日: 2021-12-28
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公开(公告)号: US20230210026A1公开(公告)日: 2023-06-29
- 发明人: Timothy Mathew Philip , Kevin W. Brew , Caitlin Camille Stuckey , Rebecca Colby Martin , Robert Robison , Lawrence A. Clevenger
- 申请人: International Business Machines Corporation
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: H01L45/00
- IPC分类号: H01L45/00 ; H01L27/24
摘要:
A phase change memory (PCM) cell includes a first electrode comprised of a first electrically conductive material, a second electrode comprised of a second electrically conductive material, and a phase change section positioned between the first electrode and the second electrode. The phase change section includes a first phase change material having a first resistance drift coefficient, and a second phase change material having a second resistance drift coefficient that is greater than the first resistance drift coefficient. An axis of the PCM cell extends between the first electrode and the second electrode, and the second phase change material is offset from the first phase change material in a direction that is perpendicular to the axis.
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