发明授权
- 专利标题: MESFET sram with power saving current-limiting transistors
- 专利标题(中): MESFET采用省电限流晶体管
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申请号: US208719申请日: 1988-06-20
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公开(公告)号: US4901279A公开(公告)日: 1990-02-13
- 发明人: Donald W. Plass
- 申请人: Donald W. Plass
- 申请人地址: 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: NY Armonk
- 主分类号: G11C11/41
- IPC分类号: G11C11/41 ; G11C11/417 ; H01L27/10 ; H01L27/11
摘要:
A static random access memory cell implemented with metal Schottky field-effect transistors. The cell has first and second branches, each of the branches including: a depletion mode current limiting transistor having a drain connected to a first circuit node; a depletion mode load transistor having a drain connected to the source of the current limiting transistor and a source connected to a second circuit node; an enhancement mode active transistor having a drain connected to the second circuit node and a source connected to a third circuit node; an enhancement mode access transistor having a source connected to the second circuit node and a gate connected to the gate of the current limiting transistor; the gate of the load transistor connected to the second circuit node; the commonly connected gates of the current limiting transistor and the access transistor adapted to receive a word-line signal; and the drain of the access transistor adapted to receive a bit-line signal. The first circuit node is adapted for connection to a source of bias voltage, and the third circuit node is adapted for connection to a circuit ground. The first and second branches are cross-connected between the second nodes and the gates of the active transistors.
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