Lateral heterojunction bipolar transistor with low temperature recessed contacts
    12.
    发明授权
    Lateral heterojunction bipolar transistor with low temperature recessed contacts 有权
    具有低温凹陷触点的横向异质结双极晶体管

    公开(公告)号:US09356114B2

    公开(公告)日:2016-05-31

    申请号:US14042951

    申请日:2013-10-01

    Abstract: A method of forming the heterojunction bipolar transistor that includes providing a stack of a base layer, an extrinsic base layer, a first metal containing layer, and a dielectric cap layer. The dielectric cap layer and the first metal containing layer may be etched to provide a base contact and a dielectric cap. Exposed portions of the base layer may be etched selectively to the dielectric cap. A remaining portion of the base layer provides the base region. A hydrogenated silicon containing layer may be deposited with a low temperature deposition method. At least a portion of the hydrogenated silicon containing layer is formed on at least sidewalls of the base region. A second metal containing layer may be formed on the hydrogenated silicon containing layer. The second metal containing and the hydrogenated silicon containing layer may be etched to provide an emitter region and a collector region.

    Abstract translation: 一种形成异质结双极晶体管的方法,其包括提供基底层,非本征基底层,第一金属含量层和电介质盖层的叠层。 可以蚀刻电介质盖层和第一含金属层以提供基极接触和电介质盖。 基底层的暴露部分可以选择性地蚀刻到电介质盖。 基层的剩余部分提供基区。 可以用低温沉积法沉积氢化含硅层。 氢化含硅层的至少一部分形成在基底区域的至少侧壁上。 可以在含氢硅层上形成第二含金属层。 可以蚀刻包含第二金属和含氢硅的层,以提供发射极区域和集电极区域。

    LATERAL BICMOS REPLACEMENT METAL GATE
    14.
    发明申请
    LATERAL BICMOS REPLACEMENT METAL GATE 审中-公开
    横向BICMOS替代金属门

    公开(公告)号:US20170005085A1

    公开(公告)日:2017-01-05

    申请号:US15264885

    申请日:2016-09-14

    CPC classification number: H01L27/0623 H01L21/8249 H01L27/092 H01L29/66545

    Abstract: A method of forming a semiconductor structure includes depositing a high-k dielectric layer within a first recess located between sidewall spacers of a first CMOS device and within a second recess located between sidewall spacers of a second CMOS device. A dummy titanium nitride layer is deposited on the high-k dielectric layer. Next, the high-k dielectric layer and the dummy titanium nitride layer are removed from the second recess in the second CMOS device. A silicon cap layer is deposited within the first recess and the second recess, the silicon cap layer is located above the high-k dielectric layer and dummy titanium nitride layer in the first CMOS device. Subsequently, dopants are implanted into the silicon cap layer located in the second recess of the second CMOS device.

    Abstract translation: 形成半导体结构的方法包括在位于第一CMOS器件的侧壁间隔件之间的第一凹槽内以及位于第二CMOS器件的侧壁间隔物之间​​的第二凹槽内沉积高k电介质层。 在高k电介质层上沉积虚拟氮化钛层。 接下来,从第二CMOS器件的第二凹部去除高k电介质层和虚拟氮化钛层。 在第一凹槽和第二凹槽中沉积硅帽层,硅帽层位于第一CMOS器件中的高k电介质层和虚拟氮化钛层的上方。 随后,将掺杂剂注入到位于第二CMOS器件的第二凹槽中的硅帽层中。

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