Capacitor and method for forming the same

    公开(公告)号:US11901283B2

    公开(公告)日:2024-02-13

    申请号:US17371641

    申请日:2021-07-09

    CPC classification number: H01L23/5223 H01L21/76805 H01L23/5226 H01L28/91

    Abstract: An integrated circuit (IC) structure includes a semiconductor substrate, a bottom electrode routing, a capacitor structure, a top electrode routing. The bottom electrode routing is over the semiconductor substrate. The capacitor structure is over the bottom electrode routing. The capacitor structure includes a bottom metal layer, a middle metal layer above the bottom metal layer, and a top metal layer above the middle metal layer. When viewed in a plan view, the top metal layer has opposite straight edges extending along a first direction and opposite square wave-shaped edges connecting the opposite straight edges, the square wave-shaped edges each comprise alternating first and second segments extending along a second direction perpendicular to the first direction, and third segments each connecting adjacent two of the first and second segments, wherein the third segments extend along the first direction.

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