Fabricating semiconductor devices having patterns with different feature sizes

    公开(公告)号:US10304680B1

    公开(公告)日:2019-05-28

    申请号:US15851839

    申请日:2017-12-22

    Abstract: Methods of fabricating semiconductor devices having patterns with different feature sizes are provided. An example method includes: etching a first film layer below a patterned mask to form first and second features on a second film layer, forming respective first and second spacers adjacent to sidewalls of the first and second features on the second film layer, removing the first and second features to expose respective first and second portion of the second film layer, the second portion having a larger CD than the first portion, controlling an etching process such that the first portion is etched through and the second portion is protected from etching by a protective film formed during the etching process, and patterning a thin film masked by the first spacer, the second spacer, and the second portion to form smaller features and larger features in respective first and second regions of the thin film.

    DIODE-LESS ARRAY FOR ONE-TIME PROGRAMMABLE MEMORY
    44.
    发明申请
    DIODE-LESS ARRAY FOR ONE-TIME PROGRAMMABLE MEMORY 有权
    一次性可编程存储器的二极管阵列

    公开(公告)号:US20140050006A1

    公开(公告)日:2014-02-20

    申请号:US14063284

    申请日:2013-10-25

    CPC classification number: G11C17/16 H01L21/8221 H01L27/0688 H01L27/101

    Abstract: A one-time programmable memory array includes a first row conductor extending in a first row direction and disposed at a first elevation, a second row conductor extending in a second row direction and disposed at a second elevation and a column conductor extending in a column direction and disposed adjacent to the first row conductor and adjacent to the second row conductor. The array also includes a dielectric layer covering at least a portion of the column conductor, a fuse link coupled between the dielectric layer on the column conductor and the second row conductor.

    Abstract translation: 一次可编程存储器阵列包括在第一行方向上延伸并且设置在第一高度的第一行导体,在第二行方向上延伸并设置在第二高度的第二行导体和沿列方向延伸的列导体 并且设置成与第一行导体相邻并且与第二行导体相邻。 阵列还包括覆盖列导体的至少一部分的电介质层,耦合在列导体上的电介质层和第二行导体之间的熔丝链。

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