SEMICONDUCTOR DEVICE WITH ENHANCED AVALANCHE RUGGEDNESS

    公开(公告)号:US20240371926A1

    公开(公告)日:2024-11-07

    申请号:US18312819

    申请日:2023-05-05

    Abstract: A method includes: receiving the semiconductor device, wherein the semiconductor device includes: a well region; a doped region; a plurality of gate electrodes; a plurality of source regions; and a plurality of drain regions, wherein the plurality of gate electrodes, the plurality of source region and the plurality of drain regions form a plurality of transistors; and a bulk region disposed in the doped region. A first distance measured between a first transistor of the plurality of transistors and the bulk region is greater than a second distance measured between a second transistor of the plurality of transistors and the bulk region. The method further includes: applying a first voltage to the plurality of drain regions, wherein a first avalanche current generated around the first transistor and shunted through the bulk region is greater than a second avalanche current generated around the second transistor and shunted through the bulk region.

    SEMICONDUCTOR DEVICE
    6.
    发明申请

    公开(公告)号:US20210226025A1

    公开(公告)日:2021-07-22

    申请号:US17224956

    申请日:2021-04-07

    Abstract: A semiconductor device includes a semiconductor substrate, a gate dielectric, a gate electrode, and a pair of source/drain regions. The gate dielectric is disposed in the semiconductor substrate having an upper boundary lower than an upper surface of the semiconductor substrate, and an upper surface flush with the upper surface of the semiconductor substrate. The gate electrode is disposed over the gate dielectric having a first section over the upper boundary of the gate dielectric and a second section over the upper surface of the gate dielectric. The second section partially covers and partially exposes the upper surface of the gate dielectric. The pair of source/drain regions are disposed on opposing sides of the gate dielectric.

    SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20200295148A1

    公开(公告)日:2020-09-17

    申请号:US16889781

    申请日:2020-06-01

    Abstract: A semiconductor device includes a semiconductor substrate, a gate dielectric, a gate electrode, a pair of source/drain regions, a pair of first well regions, a second well region, a pair of contact regions and a pair of third well regions. The gate dielectric is disposed in the semiconductor substrate having a concave profile that defines an upper boundary lower than an upper surface of the semiconductor substrate. The gate electrode is disposed over the gate dielectric. The pair of source/drain regions are disposed on opposing sides of the gate dielectric. The pair of first well regions are disposed under the pair of source/drain regions. The second well region is disposed between the pair of first well regions. The pair of contact regions are disposed on opposing sides of the pair of source/drain regions. The pair of third well regions are disposed under the pair of contact regions.

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