VERTICAL CONSTRUCTIONS FOR DEVICES HAVING A DRIFT REGION

    公开(公告)号:US20200098909A1

    公开(公告)日:2020-03-26

    申请号:US16137739

    申请日:2018-09-21

    Abstract: Structures for laterally-diffused metal-oxide-semiconductor devices and drain-extended metal-oxide-semiconductor devices, as well as methods of forming laterally-diffused metal-oxide-semiconductor devices and drain-extended metal-oxide-semiconductor devices. A gate electrode is arranged to extend about a semiconductor fin projecting from a substrate. A drain region is arranged in the substrate, and a source region is coupled with the semiconductor fin. The source region is arranged over the semiconductor fin. A drift region is arranged in the substrate between the drain region and the semiconductor fin. The drain region, source region, and drift region have a given conductivity type. The drift region has a lower electrical conductivity than the drain region.

    Silicon-controlled rectifiers with wells laterally isolated by trench isolation regions

    公开(公告)号:US10692852B2

    公开(公告)日:2020-06-23

    申请号:US16171760

    申请日:2018-10-26

    Abstract: Silicon-controlled rectifiers and methods for forming a silicon-controlled rectifier. A first well of a first conductivity type is arranged in a substrate, and second and third wells of a second conductivity type are arranged in the substrate between the first well and the top surface of the substrate. A deep trench isolation region is laterally arranged between the first well of the second conductivity type and the second well of the second conductivity type. The second well is adjoined with the first well along a first interface, the third well is adjoined with the first well along a second interface, and the deep trench isolation region extends the top surface of the substrate past the first interface and the second interface and into the first well. A doped region of the first conductivity type is arranged in the substrate between the second well and the top surface of the substrate.

    SILICON-CONTROLLED RECTIFIERS WITH WELLS LATERALLY ISOLATED BY TRENCH ISOLATION REGIONS

    公开(公告)号:US20200135715A1

    公开(公告)日:2020-04-30

    申请号:US16171760

    申请日:2018-10-26

    Abstract: Silicon-controlled rectifiers and methods for forming a silicon-controlled rectifier. A first well of a first conductivity type is arranged in a substrate, and second and third wells of a second conductivity type are arranged in the substrate between the first well and the top surface of the substrate. A deep trench isolation region is laterally arranged between the first well of the second conductivity type and the second well of the second conductivity type. The second well is adjoined with the first well along a first interface, the third well is adjoined with the first well along a second interface, and the deep trench isolation region extends the top surface of the substrate past the first interface and the second interface and into the first well. A doped region of the first conductivity type is arranged in the substrate between the second well and the top surface of the substrate.

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