Method of forming self-aligned low resistance contact layer
    41.
    发明申请
    Method of forming self-aligned low resistance contact layer 有权
    形成自对准低电阻接触层的方法

    公开(公告)号:US20100035399A1

    公开(公告)日:2010-02-11

    申请号:US12228386

    申请日:2008-08-11

    IPC分类号: H01L21/336

    摘要: Embodiments of the present invention describe a method of fabricating low resistance contact layers on a semiconductor device. The semiconductor device comprises a substrate having source and drain regions. The substrate is alternatingly exposed to a first precursor and a second precursor to selectively deposit an amorphous semiconductor layer onto each of the source and drain regions. A metal layer is then deposited over the amorphous semiconductor layer on each of the source and drain regions. An annealing process is then performed on the substrate to allow the metal layer to react with amorphous semiconductor layer to form a low resistance contact layer on each of the source and drain regions. The low resistance contact layer on each of the source and drain regions can be formed as either a silicide layer or germanide layer depending on the type of precursors used.

    摘要翻译: 本发明的实施例描述了在半导体器件上制造低电阻接触层的方法。 半导体器件包括具有源区和漏区的衬底。 将基板交替地暴露于第一前体和第二前体,以将非晶半导体层选择性地沉积到源极和漏极区域中的每一个上。 然后在每个源极和漏极区域上的非晶半导体层上沉积金属层。 然后在衬底上进行退火处理,以允许金属层与非晶半导体层反应,以在源极和漏极区域中的每一个上形成低电阻接触层。 根据所使用的前体的类型,源极和漏极区域中的每一个上的低电阻接触层可以形成为硅化物层或锗化物层。

    GERMANIUM ON INSULATOR (GOI) SEMICONDUCTOR SUBSTRATES
    42.
    发明申请
    GERMANIUM ON INSULATOR (GOI) SEMICONDUCTOR SUBSTRATES 有权
    绝缘子(GOI)半导体基板上的锗

    公开(公告)号:US20100025822A1

    公开(公告)日:2010-02-04

    申请号:US12183565

    申请日:2008-07-31

    IPC分类号: H01L29/00 H01L21/20

    摘要: Germanium on insulator (GOI) semiconductor substrates are generally described. In one example, a GOI semiconductor substrate comprises a semiconductor substrate comprising an insulative surface region wherein a concentration of dopant in the insulative surface region is less than a concentration of dopant in the semiconductor substrate outside of the insulative surface region and a thin film of germanium coupled to the insulative surface region of the semiconductor substrate wherein the thin film of germanium and the insulative surface region are simultaneously formed by oxidation anneal of a thin film of silicon germanium (Si1-xGex) deposited to the semiconductor substrate wherein x is a value between 0 and 1 that provides a relative amount of silicon and germanium in the thin film of Si1-xGex.

    摘要翻译: 绝缘体锗(GOI)半导体衬底通常被描述。 在一个示例中,GOI半导体衬底包括半导体衬底,其包括绝缘表面区域,其中绝缘表面区域中的掺杂剂的浓度小于绝缘表面区域外的半导体衬底中的掺杂剂的浓度和锗的薄膜 耦合到半导体衬底的绝缘表面区域,其中锗和绝缘表面区域的薄膜通过沉积到半导体衬底的硅锗薄膜(Si1-xGex)的氧化退火同时形成,其中x是 0和1,其在Si1-xGex的薄膜中提供相对量的硅和锗。