发明公开
EP3262650A2 READ-ASSIST CIRCUITS FOR MEMORY BIT CELLS EMPLOYING A P-TYPE FIELD-EFFECT TRANSISTOR (PFET) READ PORT(S), AND RELATED MEMORY SYSTEMS AND METHODS
审中-公开
用于使用P型场效应晶体管(PFET)读端口的存储器位单元的读辅助电路以及相关的存储器系统和方法
- 专利标题: READ-ASSIST CIRCUITS FOR MEMORY BIT CELLS EMPLOYING A P-TYPE FIELD-EFFECT TRANSISTOR (PFET) READ PORT(S), AND RELATED MEMORY SYSTEMS AND METHODS
- 专利标题(中): 用于使用P型场效应晶体管(PFET)读端口的存储器位单元的读辅助电路以及相关的存储器系统和方法
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申请号: EP16704777.8申请日: 2016-02-02
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公开(公告)号: EP3262650A2公开(公告)日: 2018-01-03
- 发明人: ATALLAH, Francois, Ibrahim , BOWMAN, Keith, Alan , HANSQUINE, David, Joseph Winston , JEONG, Jihoon , NGUYEN, Hoan, Huu
- 申请人: Qualcomm Incorporated
- 申请人地址: 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 专利权人: Qualcomm Incorporated
- 当前专利权人: Qualcomm Incorporated
- 当前专利权人地址: 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 代理机构: Tomkins & Co
- 优先权: US201562119756P 20150223; US201514862712 20150923
- 国际公布: WO2016137685 20160901
- 主分类号: G11C11/412
- IPC分类号: G11C11/412 ; H01L27/11 ; G11C11/418
摘要:
Read-assist circuits for memory bit cells employing a P-type Field-Effect Transistor (PFET) read port(s) are disclosed. Related memory systems and methods are also disclosed. It has been observed that as node technology is scaled down in size, PFET drive current (i.e., drive strength) exceeds N-type FET (NFET) drive current for like-dimensioned FETs. In this regard, in one aspect, it is desired to provide memory bit cells having PFET read ports, as opposed to NFET read ports, to increase memory read times to the memory bit cells, and thus improve memory read performance. To mitigate or avoid a read disturb condition that could otherwise occur when reading the memory bit cell, read-assist circuits are provided for memory bit cells having PFET read ports.
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