Methods of forming merged source/drain regions on integrated circuit products

    公开(公告)号:US10475904B2

    公开(公告)日:2019-11-12

    申请号:US15868004

    申请日:2018-01-11

    摘要: A method of forming a merged source/drain region is disclosed that includes forming first and second VOCS structures above a semiconductor substrate, forming a recess in the substrate between the first and second VOCS structures and forming a P-type-doped semiconductor material in the recess. In this particular example, the method also includes removing a first substantially horizontally-oriented portion of the P-type-doped semiconductor material from within the recess while leaving a second substantially horizontally-oriented portion of the P-type-doped semiconductor material remaining in the recess and forming a substantially horizontally-oriented N-type-doped semiconductor material in the recess laterally adjacent the second substantially horizontally-oriented portion of the P-type-doped semiconductor material, wherein the substantially horizontally-oriented N-type-doped semiconductor material physically engages the second substantially horizontally-oriented portion of the P-type-doped semiconductor material along an interface within the merged source/drain region.

    METHODS OF FORMING MERGED SOURCE/DRAIN REGIONS ON INTEGRATED CIRCUIT PRODUCTS

    公开(公告)号:US20190214484A1

    公开(公告)日:2019-07-11

    申请号:US15868004

    申请日:2018-01-11

    摘要: A method of forming a merged source/drain region is disclosed that includes forming first and second VOCS structures above a semiconductor substrate, forming a recess in the substrate between the first and second VOCS structures and forming a P-type-doped semiconductor material in the recess. In this particular example, the method also includes removing a first substantially horizontally-oriented portion of the P-type-doped semiconductor material from within the recess while leaving a second substantially horizontally-oriented portion of the P-type-doped semiconductor material remaining in the recess and forming a substantially horizontally-oriented N-type-doped semiconductor material in the recess laterally adjacent the second substantially horizontally-oriented portion of the P-type-doped semiconductor material, wherein the substantially horizontally-oriented N-type-doped semiconductor material physically engages the second substantially horizontally-oriented portion of the P-type-doped semiconductor material along an interface within the merged source/drain region.

    Vertical transistors and methods of forming same

    公开(公告)号:US10256235B2

    公开(公告)日:2019-04-09

    申请号:US15893860

    申请日:2018-02-12

    摘要: One aspect of the disclosure relates to an integrated circuit structure. The integrated circuit structure may include a fin having a first source/drain region and a second source/drain, the first source/drain region being over a substrate and below a central region of the fin, and the second source/drain region being within a dielectric layer and over the central region of the fin; a gate structure within the dielectric layer substantially surrounding the central region of the fin between the first source/drain region and the second source drain region, wherein the fin includes at least one tapered region from the central region of the fin to at least one of the first source/drain region or the second source/drain region.

    Interconnects for vertical-transport field-effect transistors

    公开(公告)号:US09887192B2

    公开(公告)日:2018-02-06

    申请号:US15198044

    申请日:2016-06-30

    摘要: Structures and fabrication methods for vertical-transport field-effect transistors. The structure includes a vertical-transport field-effect transistor having a source/drain region located in a semiconductor layer, a fin projecting from the source/drain region in the semiconductor layer, and a gate electrode on the semiconductor layer and coupled with the fin. The structure further includes an interconnect located in a trench defined in the semiconductor layer. The interconnect is coupled with the source/drain region or the gate electrode of the vertical-transport field-effect transistor, and may be used to couple the source/drain region or the gate electrode of the vertical-transport field-effect transistor with a source/drain region or a gate electrode of another vertical-transport field-effect transistor.

    VERTICAL TRANSISTORS AND METHODS OF FORMING SAME

    公开(公告)号:US20180006024A1

    公开(公告)日:2018-01-04

    申请号:US15198309

    申请日:2016-06-30

    IPC分类号: H01L27/088 H01L21/8234

    摘要: One aspect of the disclosure relates to an integrated circuit structure. The integrated circuit structure may include a fin having a first source/drain region and a second source/drain, the first source/drain region being over a substrate and below a central region of the fin, and the second source/drain region being within a dielectric layer and over the central region of the fin; a gate structure within the dielectric layer substantially surrounding the central region of the fin between the first source/drain region and the second source drain region, wherein the fin includes at least one tapered region from the central region of the fin to at least one of the first source/drain region or the second source/drain region.