METHOD OF FORMING A SEMICONDUCTOR STRUCTURE INCLUDING A VERTICAL NANOWIRE

    公开(公告)号:SG2014002539A

    公开(公告)日:2014-08-28

    申请号:SG2014002539

    申请日:2014-01-13

    Abstract: A method comprises providing a semiconductor structure comprising a substrate and a nanowire above the substrate. The nanowire comprises a first semiconductor material and extends in a vertical direction of the substrate. A material layer is formed above the substrate. The material layer annularly encloses the nanowire. A first part of the nanowire is selectively removed relative to the material layer. A second part of the nanowire is not removed. A distal end of the second part of the nanowire distal from the substrate is closer to the substrate than a surface of the material layer so that the semiconductor structure has a recess at the location of the nanowire. The distal end of the nanowire is exposed at the bottom of the recess. The recess is filled with a second semiconductor material. The second semiconductor material is differently doped than the first semiconductor material.

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