PREVENTING GATE-TO-CONTACT BRIDGING BY REDUCING CONTACT DIMENSIONS IN FINFET SRAM

    公开(公告)号:US20190006373A1

    公开(公告)日:2019-01-03

    申请号:US16046188

    申请日:2018-07-26

    Abstract: A static random access memory (SRAM) cell includes a first gate and a second gate each extending in a first direction. A first gap separates the first gate from the second gate in the first direction. The SRAM cell includes a Vcc contact extending in the first direction. A second gap separates the Vcc contact and the first gate in a second direction perpendicular to the first direction. No segment of the Vcc contact overlaps with the first gap in the first direction. The SRAM cell includes a Vss contact extending in the first direction. A third gap separates the Vss contact from the first gate in the second direction. A segment of the Vss contact is disposed to the first gap. The Vss contact is smaller than the Vcc contact in the second direction.

    BACKSIDE STRUCTURE FOR IMAGE SENSOR

    公开(公告)号:US20220344383A1

    公开(公告)日:2022-10-27

    申请号:US17384956

    申请日:2021-07-26

    Abstract: The present disclosure relates to an image sensor having an image sensing element surrounded by a BDTI structure, and an associated method of formation. In some embodiments, a first image sensing element and a second image sensing element are arranged next to one another within an image sensing die. A pixel dielectric stack is disposed along a back of the image sensing die overlying the image sensing elements. The pixel dielectric stack includes a first high-k dielectric layer and a second high-k dielectric layer. The BDTI structure is disposed between the first image sensing element and the second image sensing element and extends from the back of the image sensor die to a position within the image sensor die. The BDTI structure includes a trench filling layer surrounded by an isolation dielectric stack. The pixel dielectric stack has a composition different from that of the isolation dielectric stack.

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