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    • 2. 发明申请
    • MEMORY CELL WITH ASYMMETRIC CONDUCTION TO REDUCE WRITE MINIMUM OPERATING VOLTAGE (WVMIN) AND POWER CONSUMPTION
    • 具有不对称导通的存储器单元以减少写入最小工作电压(WVMIN)和功耗
    • WO2017052621A1
    • 2017-03-30
    • PCT/US2015/052352
    • 2015-09-25
    • INTEL CORPORATIONMORRIS, Daniel H.AVCI, Uygar E.YOUNG, Ian A.
    • MORRIS, Daniel H.AVCI, Uygar E.YOUNG, Ian A.
    • H01L27/11
    • H01L27/1104G11C7/02G11C11/412G11C11/419
    • Techniques for providing asymmetric conduction within an SRAM bit cell are provided and may substantially reduce energy consumption during write operations, and may also reduce the write minimum operation voltage (WVmin) for an SRAM device. In particular, some aspects disclosed herein include modifying or otherwise providing pull-up transistors configured to asymmetrically conduct to prevent current flow in a reverse direction, and more particularly, to prevent or otherwise mitigate current flowing back to Vcc during write operations. This can reduce voltage swings that would otherwise occur as internal bit cell nodes Q/Q# discharge, and thus, may reduce overall power consumption. The asymmetrical conducting characteristics may further reduce the magnitude of disturb currents within unselected cells (e.g., cells not selected for writes) and thus prevent the loss of data through inadvertent writes.
    • 提供了用于在SRAM位单元内提供不对称传导的技术,并且可以显着降低写入操作期间的能量消耗,并且还可以降低SRAM器件的写入最小工作电压(WVmin)。 特别地,本文公开的一些方面包括修改或以其他方式提供被配置为不对称地导通的上拉晶体管,以防止在相反方向上的电流流动,更具体地,涉及防止或以其它方式缓解在写入操作期间流向Vcc的电流。 这可以减少当内部位单元节点Q / Q#放电时会发生的电压摆幅,从而可能降低总功耗。 不对称导电特性可以进一步减小未选择的单元(例如,未被选择用于写入的单元)内的干扰电流的大小,从而通过无意写入来防止数据丢失。