Static random-access memory (SRAM) cell array

    公开(公告)号:US09947674B2

    公开(公告)日:2018-04-17

    申请号:US15686169

    申请日:2017-08-25

    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.

    Memory device
    74.
    发明授权

    公开(公告)号:US09871048B1

    公开(公告)日:2018-01-16

    申请号:US15621754

    申请日:2017-06-13

    CPC classification number: H01L27/1104 G11C11/412 H01L27/0207

    Abstract: A memory device includes a pickup area extending along a first direction. The pickup area includes at least one N-pickup structure, distributing along an N-pickup line extending at the first direction. At least one P-pickup structure distributes by alternating with the N-pickup structure at the first direction and interleaves with the N-pickup structure at a second direction. The second direction is perpendicular to the first direction. Dummy pickup structure distributes along the first direction, opposite to the P-pickup structure with respect to the N-pickup line. Further, a cell area is beside the pickup area. The SRAM cells in the cell area form cell rows extending along the second direction. Each SRAM cell covers one N-type well region along the second direction and two P-type well regions along the second direction to sandwich the N-type well region. The N-pickup/P-pickup structures respectively provide first/second substrate voltage to the N-type/P-type well regions.

    Method for forming photo-mask and OPC method
    76.
    发明授权
    Method for forming photo-mask and OPC method 有权
    光掩模和OPC方法的形成方法

    公开(公告)号:US09274416B2

    公开(公告)日:2016-03-01

    申请号:US14023476

    申请日:2013-09-11

    CPC classification number: G03F1/72 G03F1/144 G03F1/36

    Abstract: A method for forming a photo-mask is provided. A first photo-mask pattern relating to a first line, an original second photo-mask pattern relating to a first via plug, and a third photo-mask pattern relating to a second line are provided. A first optical proximity correction (OPC) process is performed. A second OPC process is performed, comprising enlarging a width of the second photo-mask pattern along the first direction to form a revised second photo-resist pattern. A contour simulation process is performed to make sure the revised second photo-mask pattern is larger or equal to the original second-mask pattern. The first photo-mask pattern, the revised second photo-mask pattern, and the third photo-mask pattern are output. The present invention further provides an OPC method.

    Abstract translation: 提供一种形成光掩模的方法。 提供与第一行相关的第一照片掩模图案,与第一通孔插头相关的原始第二照片掩模图案和与第二行相关的第三照片掩模图案。 执行第一光学邻近校正(OPC)处理。 执行第二OPC处理,包括沿着第一方向放大第二光掩模图案的宽度以形成修改的第二光刻胶图案。 执行轮廓模拟处理以确保修改的第二光掩模图案大于或等于原始第二掩模图案。 输出第一光掩模图案,修改的第二光掩模图案和第三光掩模图案。 本发明还提供一种OPC方法。

    Method of forming a photomask
    77.
    发明授权
    Method of forming a photomask 有权
    形成光掩模的方法

    公开(公告)号:US09268896B1

    公开(公告)日:2016-02-23

    申请号:US14576212

    申请日:2014-12-19

    CPC classification number: G03F1/38 G03F1/70 G03F7/70425 H01L21/823431

    Abstract: A method of forming a photomask comprises providing a predetermined fin array having a plurality of fin patterns to a computer readable medium in a computer system. First of all, a plurality of width markers is defined by using the computer system, with each of the width marker parallel to each other and comprising two fin patterns, wherein each of the width markers is spaced from each other by a space. Then, a number of the width markers is checked to be an even. Following this, a plurality of pre-mandrel patterns is defined corresponding to odd numbered ones of the spaces. Then, a plurality of mandrel patterns is defined by sizing up the pre-mandrel patterns. Finally, the mandrel patterns are outputted to form a photomask.

    Abstract translation: 形成光掩模的方法包括向计算机系统中的计算机可读介质提供具有多个鳍图案的预定鳍阵列。 首先,通过使用计算机系统来定义多个宽度标记,其中每个宽度标记彼此平行并且包括两个鳍图案,其中每个宽度标记彼此间隔一个空间。 然后,多个宽度标记被检查为均匀。 此后,对应于空格中的奇数编号的多个预心轴图案被定义。 然后,通过调整预心轴图案的尺寸来定义多个心轴图案。 最后,输出心轴图案以形成光掩模。

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