Methods and apparatus for finFET SRAM arrays in integrated circuits
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United States of America Patent
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Apr 8, 2014
Grant Date -
Jun 6, 2013
app pub date -
Dec 6, 2011
filing date -
Dec 6, 2011
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Abstract
Methods and apparatus for providing single finFET and multiple finFET SRAM arrays on a single integrated circuit. A first single port SRAM array of a plurality of first bit cells is described, each first bit cell having a y pitch Y1 and an X pitch X1, the ratio of X1 to Y1 being greater than or equal to 2, each bit cell further having single fin finFET transistors to form a 6T SRAM cell and a first voltage control circuit; and a second single port SRAM array of a plurality of second bit cells, each second bit cell having a y pitch Y2 and an X pitch X2, the ratio of X2 to Y2 being greater than or equal to 3, each of the plurality of second bit cells comprising a 6T SRAM cell wherein the ratio of X2 to X1 is greater than about 1.1.
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