发明授权
US5373463A Ferroelectric nonvolatile random access memory having drive line segments
失效
具有驱动线段的铁电非易失性随机存取存储器
- 专利标题: Ferroelectric nonvolatile random access memory having drive line segments
- 专利标题(中): 具有驱动线段的铁电非易失性随机存取存储器
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申请号: US86254申请日: 1993-07-06
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公开(公告)号: US5373463A公开(公告)日: 1994-12-13
- 发明人: Robert E. Jones Jr.
- 申请人: Robert E. Jones Jr.
- 申请人地址: IL Schaumburg
- 专利权人: Motorola Inc.
- 当前专利权人: Motorola Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: G11C11/22
- IPC分类号: G11C11/22
摘要:
A nonvolatile random access memory (60) includes a ferroelectric memory array (62). The memory array (62) includes memory cells (86-89 and 91-96) arranged in intersecting rows and columns, where the memory cells (86-89 and 91-96) are coupled to bit lines and word lines. Drive lines are disposed parallel to the bit lines and drive line segments are disposed parallel to the word lines. A drive line segment is coupled to a predetermined number of the memory cells of a row. Coupling transistors (80, 82, 84, and 90) couple a drive line segment to a drive line in response to the word line being selected. The ferroelectric memory array (60) provides the advantage of eliminating a change in the polarization state of non-accessed memory cells connected to a selected drive line, and also provides the advantage of reduced energy consumption.
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