发明名称 Methods and Systems for Adjusting Wordline Up-Level Voltage to Improve Production Yield Relative to SRAM-Cell Stability
摘要 Methods of setting wordline up-level voltage in as-fabricated SRAM. In one example, the method includes determining the relative speed, or strength, of 1) the combination of the pass-gate and pull-down devices and 2) the pull-up devices in the bitcells of the SRAM. These relative strengths are then used to adjust the wordline up-level voltage, if needed, to decrease the likelihood of the SRAM experiencing a stability failure. Corresponding systems are provided for determining the relative strengths of the devices of interest, for determining the amount of up-level voltage adjustment needed, and for selecting and setting the up-level voltage.
申请公布号 US2012075919(A1) 申请公布日期 2012.03.29
申请号 US20100892191 申请日期 2010.09.28
申请人 ARSOVSKI IGOR;BRACERAS GEORGE M.;GORMAN KEVIN W.;HOULE ROBERT M.;PILO HAROLD;INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 ARSOVSKI IGOR;BRACERAS GEORGE M.;GORMAN KEVIN W.;HOULE ROBERT M.;PILO HAROLD
分类号 G11C11/00 主分类号 G11C11/00
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