Heterojunction bipolar transistors with reduced parasitic capacitance
    14.
    发明授权
    Heterojunction bipolar transistors with reduced parasitic capacitance 有权
    具有降低的寄生电容的异质结双极晶体管

    公开(公告)号:US08957456B1

    公开(公告)日:2015-02-17

    申请号:US13955382

    申请日:2013-07-31

    Abstract: Fabrication methods, device structures, and design structures for a heterojunction bipolar transistor. A trench isolation region and a collector are formed in a semiconductor substrate. The collector is coextensive with the trench isolation region. A first semiconductor layer is formed that includes a of single crystal section disposed on the collector and on the trench isolation region. A second semiconductor layer is formed that includes a single crystal section disposed on the single crystal section of the first semiconductor layer and that has an outer edge that overlies the trench isolation region. The section of the first semiconductor layer has a second width greater than a first width of the collector. The section of the second semiconductor layer has a third width greater than the second width. A cavity extends laterally from the outer edge of section of the second semiconductor layer to the section of the first semiconductor layer.

    Abstract translation: 异质结双极晶体管的制造方法,器件结构和设计结构。 在半导体衬底中形成沟槽隔离区和集电极。 收集器与沟槽隔离区域共同延伸。 形成第一半导体层,其包括设置在集电极和沟槽隔离区上的单晶部分。 形成第二半导体层,其包括设置在第一半导体层的单晶部分上并具有覆盖在沟槽隔离区域上的外边缘的单晶部分。 第一半导体层的截面具有大于集电体的第一宽度的第二宽度。 第二半导体层的截面具有大于第二宽度的第三宽度。 空腔从第二半导体层的截面的外边缘横向延伸到第一半导体层的部分。

    ISOLATION SCHEME FOR BIPOLAR TRANSISTORS IN BICMOS TECHNOLOGY
    15.
    发明申请
    ISOLATION SCHEME FOR BIPOLAR TRANSISTORS IN BICMOS TECHNOLOGY 有权
    BICMOS技术中双极晶体管的隔离方案

    公开(公告)号:US20150041956A1

    公开(公告)日:2015-02-12

    申请号:US14492582

    申请日:2014-09-22

    Abstract: Device structures and design structures for a bipolar junction transistor. The device structure includes a collector region in a substrate, a plurality of isolation structures extending into the substrate and comprised of an electrical insulator, and an isolation region in the substrate. The isolation structures have a length and are arranged with a pitch transverse to the length such that each adjacent pair of the isolation structures is separated by a respective section of the substrate. The isolation region is laterally separated from at least one of the isolation structures by a first portion of the collector region. The isolation region laterally separates a second portion of the collector region from the first portion of the collector region. The device structure further includes an intrinsic base on the second portion of the collector region and an emitter on the intrinsic base. The emitter has a length transversely oriented relative to the length of the isolation structures.

    Abstract translation: 双极结型晶体管的器件结构和设计结构。 器件结构包括衬底中的集电极区域,延伸到衬底中并由电绝缘体构成的多个隔离结构以及衬底中的隔离区域。 隔离结构具有长度并且以横向于长度的间距布置,使得每个相邻的一对隔离结构被基板的相应部分分开。 隔离区域通过集电区域的第一部分与隔离结构中的至少一个横向分离。 隔离区域将收集区域的第二部分与收集器区域的第一部分横向分离。 器件结构还包括在集电极区域的第二部分上的本征基极和在本征基极上的发射极。 发射极相对于隔离结构的长度具有横向定向的长度。

    Tunable breakdown voltage RF FET devices

    公开(公告)号:US10804364B2

    公开(公告)日:2020-10-13

    申请号:US16031371

    申请日:2018-07-10

    Abstract: A tunable breakdown voltage RF MESFET and/or MOSFET and methods of manufacture are disclosed. The method includes forming a first line and a second line on an underlying gate dielectric material. The second line has a width tuned to a breakdown voltage. The method further includes forming sidewall spacers on sidewalls of the first and second line such that the space between first and second line is pinched-off by the dielectric spacers. The method further includes forming source and drain regions adjacent outer edges of the first line and the second line, and removing at least the second line to form an opening between the sidewall spacers of the second line and to expose the underlying gate dielectric material. The method further includes depositing a layer of material on the underlying gate dielectric material within the opening, and forming contacts to a gate structure and the source and drain regions.

    Tunable breakdown voltage RF FET devices

    公开(公告)号:US10680074B2

    公开(公告)日:2020-06-09

    申请号:US15944018

    申请日:2018-04-03

    Abstract: A tunable breakdown voltage RF MESFET and/or MOSFET and methods of manufacture are disclosed. The method includes forming a first line and a second line on an underlying gate dielectric material. The second line has a width tuned to a breakdown voltage. The method further includes forming sidewall spacers on sidewalls of the first and second line such that the space between first and second line is pinched-off by the dielectric spacers. The method further includes forming source and drain regions adjacent outer edges of the first line and the second line, and removing at least the second line to form an opening between the sidewall spacers of the second line and to expose the underlying gate dielectric material. The method further includes depositing a layer of material on the underlying gate dielectric material within the opening, and forming contacts to a gate structure and the source and drain regions.

    HETEROJUNCTION BIPOLAR TRANSISTORS WITH AN AIRGAP BETWEEN THE EXTRINSIC BASE AND COLLECTOR
    20.
    发明申请
    HETEROJUNCTION BIPOLAR TRANSISTORS WITH AN AIRGAP BETWEEN THE EXTRINSIC BASE AND COLLECTOR 有权
    异位基体和收集器之间的空气间隔异构双极晶体管

    公开(公告)号:US20150137185A1

    公开(公告)日:2015-05-21

    申请号:US14083769

    申请日:2013-11-19

    CPC classification number: H01L29/7371 H01L29/0649 H01L29/66242

    Abstract: Fabrication methods, device structures, and design structures for a heterojunction bipolar transistor. A collector is formed in a semiconductor substrate, an intrinsic base is formed on the semiconductor substrate, and an extrinsic base is formed on the intrinsic base. An airgap is located vertically between the extrinsic base and the collector. A contact surface is located adjacent to the airgap. The contact surface is coupled with the collector. A spacer is located laterally between the airgap and the subcollector contact surface.

    Abstract translation: 异质结双极晶体管的制造方法,器件结构和设计结构。 在半导体衬底中形成集电极,在半导体衬底上形成本征基极,在本征基底上形成非本征基极。 气隙垂直位于外部基极和收集器之间。 接触表面位于气隙附近。 接触表面与收集器结合。 间隔件横向位于气隙和子集电极接触表面之间。

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