METHOD OF DESIGNING A LAYOUT OF A STATIC RANDOM ACCESS MEMORY PATTERN

    公开(公告)号:US20200212052A1

    公开(公告)日:2020-07-02

    申请号:US16234441

    申请日:2018-12-27

    Abstract: The present invention provides a method of designing a layout of a static random access memory (SRAM) pattern, the method includes the following steps: firstly, a target pattern is provided, and according to the target pattern, a plurality of first patterns and a first dummy pattern are formed in a substrate, the first pattern that disposed at the outermost boundary of the first patterns is defined as a first edge pattern, and the first dummy pattern is disposed adjacent to the first edge pattern, next, the first dummy pattern is removed, and afterwards, according to the target pattern, a plurality of second patterns are formed in the substrate, the second patterns comprises a second edge pattern that is disposed between the first edge pattern and an original position of the first dummy pattern.

    Optical proximity correction device and method

    公开(公告)号:US11934106B2

    公开(公告)日:2024-03-19

    申请号:US17880700

    申请日:2022-08-04

    CPC classification number: G03F7/70441 G03F1/36 G03F7/705

    Abstract: An optical proximity correction (OPC) device and method is provided. The OPC device includes an analysis unit, a reverse pattern addition unit, a first OPC unit, a second OPC unit and an output unit. The analysis unit is configured to analyze a defect pattern from a photomask layout. The reverse pattern addition unit is configured to provide a reverse pattern within the defect pattern. The first OPC unit is configured to perform a first OPC procedure on whole of the photomask layout. The second OPC unit is configured to perform a second OPC procedure on the defect pattern of the photomask layout to enhance an exposure tolerance window. The output unit is configured to output the photomask layout which is corrected.

    Method of designing a layout of a static random access memory pattern

    公开(公告)号:US10797059B2

    公开(公告)日:2020-10-06

    申请号:US16234441

    申请日:2018-12-27

    Abstract: The present invention provides a method of designing a layout of a static random access memory (SRAM) pattern, the method includes the following steps: firstly, a target pattern is provided, and according to the target pattern, a plurality of first patterns and a first dummy pattern are formed in a substrate, the first pattern that disposed at the outermost boundary of the first patterns is defined as a first edge pattern, and the first dummy pattern is disposed adjacent to the first edge pattern, next, the first dummy pattern is removed, and afterwards, according to the target pattern, a plurality of second patterns are formed in the substrate, the second patterns comprises a second edge pattern that is disposed between the first edge pattern and an original position of the first dummy pattern.

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