SEMICONDUCTOR STRUCTURE AND FORMING METHOD THEREFOR

    公开(公告)号:US20210407936A1

    公开(公告)日:2021-12-30

    申请号:US17290040

    申请日:2020-03-17

    IPC分类号: H01L23/00 H01L29/417

    摘要: A semiconductor structure and a method of fabricating therefor are disclosed. A second contact pad (500) is arranged lateral to a first contact pad (420) in an interconnect structure (400). As a result, during fabrication of the interconnect structure (400), the first contact pad (420) will not be present alone in a large bland area, due to the presence of the second contact pad (500). Thus, a pattern feature for the first contact pad (420) will not be over-resolved, increasing formation accuracy of the first contact pad (420) and thus guaranteeing good electrical transmission performance of the resulting interconnect structure (400).

    CONTACT STRUCTURE, CONTACT PAD LAYOUT AND STRUCTURE, MASK COMBINATION AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20210272961A1

    公开(公告)日:2021-09-02

    申请号:US17320244

    申请日:2021-05-14

    IPC分类号: H01L27/108

    摘要: A contact structure, contact pad layout and structure, mask combination and manufacturing method thereof is provided in the present invention. Through the connection of tops of at least two contact plugs in the boundary of core region, an integrated contact with larger cross-sectional area is formed in the boundary of core region. Accordingly, the process of forming electronic components on the contact structure in the boundary of core region may be provided with sufficient process window to increase the size of electronic components in the boundary, lower contact resistance, and the electronic component with increased size in the boundary buffer the density difference of circuit patterns between the core region and the peripheral region, thereby improving optical proximity effect and ensuring the uniformity of electronic components on the contact plugs inside the boundary of core region, and avoiding the collapse of electronic components on the contact plug in the boundary.