发明申请
US20110096588A1 NON-VOLATILE MEMORY ARRAY ARCHITECTURE INCORPORATING 1T-1R NEAR 4F2 MEMORY CELL
有权
非易失性存储器阵列结合1T-1R近4F2存储单元
- 专利标题: NON-VOLATILE MEMORY ARRAY ARCHITECTURE INCORPORATING 1T-1R NEAR 4F2 MEMORY CELL
- 专利标题(中): 非易失性存储器阵列结合1T-1R近4F2存储单元
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申请号: US12606111申请日: 2009-10-26
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公开(公告)号: US20110096588A1公开(公告)日: 2011-04-28
- 发明人: Luca G. Fasoli
- 申请人: Luca G. Fasoli
- 主分类号: G11C11/00
- IPC分类号: G11C11/00
摘要:
A nonvolatile memory array architecture includes a resistive element between each common source/drain (intermediate) node and data line (or bit line), in an otherwise virtual ground-like memory array having serially-connected transistors coupled to the same word line. However, every N+1 transistors the corresponding resistive element is omitted (or generally kept in a low resistance state) to form transistor strings. This achieves an array density of 4F2*(N+1)/N, which approaches 4F2 array density for reasonable values of N. Such memory arrays are well suited for use in a three-dimensional memory array having distinct memory planes stacked above each other on multiple levels above a substrate.
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