HETEROJUNCTION BIPOLAR TRANSISTOR WITH EMITTER BASE JUNCTION OXIDE INTERFACE

    公开(公告)号:US20200335612A1

    公开(公告)日:2020-10-22

    申请号:US16388500

    申请日:2019-04-18

    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a heterojunction bipolar transistor having an emitter base junction with a silicon-oxygen lattice interface and methods of manufacture. The device includes: a collector region buried in a substrate; shallow trench isolation regions, which isolate the collector region buried in the substrate; a base region on the substrate and over the collector region; an emitter region composed of a single crystalline of semiconductor material and located over with the base region; and an oxide interface at a junction of the emitter region and the base region.

    HETEROJUNCTION BIPOLAR TRANSISTOR

    公开(公告)号:US20210091189A1

    公开(公告)日:2021-03-25

    申请号:US16823005

    申请日:2020-03-18

    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a heterojunction bipolar transistor and methods of manufacture. The structure includes: a sub-collector region; a collector region in electrical connection to the sub-collector region; an emitter located adjacent to the collector region and comprising emitter material, recessed sidewalls on the emitter material and an extension region extending at an upper portion of the emitter material above the recessed sidewalls; and an extrinsic base separated from the emitter by the recessed sidewalls.

    HETEROJUNCTION BIPOLAR TRANSISTOR

    公开(公告)号:US20210091183A1

    公开(公告)日:2021-03-25

    申请号:US16830783

    申请日:2020-03-26

    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to heterojunction bipolar transistors and methods of manufacture. The structure includes a collector region composed of semiconductor material; at least one marker layer over the collector region; a layer of doped semiconductor material which forms an extrinsic base and which is located above the at least one marker layer; a cavity formed in the layer of doped semiconductor material and extending at least to the at least one marker layer; an epitaxial intrinsic base layer of doped material located within the cavity; and an emitter material over the epitaxial intrinsic base layer and within an opening formed by sidewall spacer structures.

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