METHOD FOR FABRICATING SEMICONDUCTOR DEVICE

    公开(公告)号:US20220139912A1

    公开(公告)日:2022-05-05

    申请号:US17577549

    申请日:2022-01-18

    Abstract: A semiconductor device includes a substrate having first and second regions, first fin groups spaced along a first direction on the first region, each of the first fin groups including adjacent first and second fins having longitudinal directions in a second direction intersecting the first direction, and third to fifth fins spaced along a third direction on the second region, the third to fifth fins having longitudinal directions in a fourth direction intersecting the third direction. The third through fifth fins are at a first pitch, the first and second fins are at a second pitch equal to or smaller than the first pitch, each of the first fin groups is at a first group pitch greater than three times the first pitch and smaller than four times the first pitch, and a width of the first and second fins is same as width of the third fin.

    VERTICAL TUNNELING FIELD EFFECT TRANSISTOR AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20190109214A1

    公开(公告)日:2019-04-11

    申请号:US16197752

    申请日:2018-11-21

    Abstract: A vertical tunnel field effect transistor (VTFET) including a fin structure protruding from a substrate including a source/drain region, an epitaxially-grown source/drain structure on the fin structure, a cap including pillar portions, the pillar portions covering side surfaces of the epitaxially-grown source/drain structure and partially covering side surfaces of a top portion of the fin structure, a gate insulator covering remaining portions of the side surfaces of the fin structure under the pillar portions of the cap, a work function metal gate on the gate insulator, and a separation pattern surrounding a bottom portion of a fin structure such that the work function metal gate is vertically between the cap and the separation pattern, the separation pattern electrically isolating the work function metal gate from the source/drain region, and a method of manufacturing the same may be provided.

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