Layout pattern for SRAM and manufacturing methods thereof

    公开(公告)号:US10396064B2

    公开(公告)日:2019-08-27

    申请号:US16171339

    申请日:2018-10-25

    Abstract: The present invention provides a layout pattern of a static random access memory (SRAM). The layout pattern includes a first inverter and a second inverter constituting a latch circuit, wherein the latch circuit includes four transistors, a first access transistor (PG1) and a second access transistor (PG2) being electrically connected to the latch circuit, wherein the first access transistor is electrically connected to a first word line and a first bit line, and the second access transistor is electrically connected to a second word line and a second bit line, the first access transistor has a first gate length, the first access transistor has a second gate length, and the first gate length is different from the second gate length, and two read transistors series connected to each other, wherein one of the two read transistors is connected to the latch circuit.

    SEMICONDUCTOR CHIP AND METHOD OF ESTIMATING CAPABILITY OF SEMICONDUCTOR MANUFACTURING SYSTEM
    8.
    发明申请
    SEMICONDUCTOR CHIP AND METHOD OF ESTIMATING CAPABILITY OF SEMICONDUCTOR MANUFACTURING SYSTEM 审中-公开
    半导体制造系统的半导体芯片和估算能力的方法

    公开(公告)号:US20160099184A1

    公开(公告)日:2016-04-07

    申请号:US14509032

    申请日:2014-10-07

    CPC classification number: H01L22/14 H01L21/823412 H01L21/823431 H01L27/1104

    Abstract: A method of estimating the capability of a semiconductor manufacturing system is provided. Plural first transistors are formed and a first VtMM value and a first scale value are obtained. Plural second transistors are formed and a second VtMM value and a second scale value are obtained. Plural third transistors are formed and a third VtMM value and a third scale value are obtained. A first channel length of the first transistor is smaller than a second channel length of the second transistor and is equal to a third channel length of the third transistor. A VtMM v.s. scale figure is established. A line is formed by linking the first dot and the third dot and a vertical Gap between the line and the second dot is measured. The capability of the semiconductor system is determined based on the vertical Gap. The invention further provides a chip.

    Abstract translation: 提供了一种估计半导体制造系统的能力的方法。 形成多个第一晶体管,并获得第一VtMM值和第一刻度值。 形成多个第二晶体管,并获得第二VtMM值和第二刻度值。 形成多个第三晶体管,并获得第三VtMM值和第三比例值。 第一晶体管的第一沟道长度小于第二晶体管的第二沟道长度,并且等于第三晶体管的第三沟道长度。 VtMM v.s. 规模建立。 通过连接第一点和第三点形成线,并且测量线与第二点之间的垂直间隙。 基于垂直间隙确定半导体系统的能力。 本发明还提供一种芯片。

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