STATIC RANDOM-ACCESS MEMORY (SRAM) CELL ARRAY

    公开(公告)号:US20170317091A1

    公开(公告)日:2017-11-02

    申请号:US15635190

    申请日:2017-06-27

    CPC classification number: H01L29/6681 H01L27/1104 H01L27/1116 H01L29/785

    Abstract: A static random-access memory (SRAM) cell array forming method includes the following steps. A plurality of fin structures are formed on a substrate, wherein the fin structures include a plurality of active fins and a plurality of dummy fins, each PG (pass-gate) FinFET shares at least one of the active fins with a PD (pull-down) FinFET, and at least one dummy fin is disposed between the two active fins having two adjacent pull-up FinFETs thereover in a static random-access memory cell. At least a part of the dummy fins are removed. The present invention also provides a static random-access memory (SRAM) cell array formed by said method.

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