Trench metal-insulator-metal (MIM) capacitors integrated with middle-of-line metal contacts, and method of fabricating same
    2.
    发明授权
    Trench metal-insulator-metal (MIM) capacitors integrated with middle-of-line metal contacts, and method of fabricating same 失效
    与中间线金属触点集成的沟槽金属 - 绝缘体金属(MIM)电容器及其制造方法

    公开(公告)号:US07682896B2

    公开(公告)日:2010-03-23

    申请号:US11750355

    申请日:2007-05-18

    IPC分类号: H01L21/8242 H01L21/331

    摘要: The present invention relates to a method of fabrication process which integrates the processing steps for fabricating the trench MIM capacitor with the conventional middle-of-line processing steps for fabricating metal contacts, so that the inner metallic electrode layer of the trench MIM capacitor and the metal contact of the FET or other logic circuitry components are formed by a single middle-of-line processing step and comprise essentially the same metallic material. The semiconductor device contains at least one trench metal-oxide-metal (MIM) capacitor and at least one other logic circuitry component, preferably at least one field effect transistor (FET). The trench MIM capacitor is located in a trench in a substrate and comprises inner and outer metallic electrode layers with a dielectric layer therebetween. The FET comprises a source region, a drain region, a channel region, and at least one metal contact connected with the source or drain region.

    摘要翻译: 本发明涉及一种制造工艺的方法,该方法将用于制造沟槽MIM电容器的处理步骤与用于制造金属触点的常规中间线处理步骤相结合,使得沟槽MIM电容器的内部金属电极层和 FET或其他逻辑电路部件的金属接触通过单个中间线处理步骤形成并且包括基本上相同的金属材料。 半导体器件包含至少一个沟槽金属氧化物金属(MIM)电容器和至少一个其它逻辑电路部件,优选地至少一个场效应晶体管(FET)。 沟槽MIM电容器位于衬底中的沟槽中,并且包括其间具有介电层的内部和外部金属电极层。 FET包括源极区,漏极区,沟道区以及与源极或漏极区连接的至少一个金属接触。

    Production of substrate for tensilely strained semiconductor
    3.
    发明授权
    Production of substrate for tensilely strained semiconductor 失效
    生产用于拉伸应变半导体的基板

    公开(公告)号:US5759898A

    公开(公告)日:1998-06-02

    申请号:US770065

    申请日:1996-12-19

    摘要: A process and method for producing strained and defect free semiconductor layers. In a preferred embodiment, silicon on insulator may be used as a substrate for the growth of fully relaxed SiGe buffer layers. A new strain relief mechanism operates, whereby the SiGe layer relaxes without the generation of threading dislocations within the SiGe layer. This is achieved by depositing SiGe on an SOI substrate with a superficial silicon thickness. Initially the strain in the SiGe layer becomes equalized with the thin Si layer by creating tensile strain in the Si layer. Then the strain created in the thin Si layer is relaxed by plastic deformation during an anneal. Since dislocations are formed, and glide in the thin Si layer, threading dislocations are not introduced into the upper SiGe material. A strained silicon layer for heterostructures may then be formed on the SiGe material.

    摘要翻译: 一种制造应变和无缺陷半导体层的方法和方法。 在优选实施例中,绝缘体上硅可以用作用于生长完全松弛的SiGe缓冲层的衬底。 新的应变消除机构工作,由此SiGe层松弛而不在SiGe层内产生穿透位错。 这通过在具有表面硅厚度的SOI衬底上沉积SiGe来实现。 最初,通过在Si层中产生拉伸应变,SiGe层中的应变与薄Si层相等。 那么在薄Si层中产生的应变在退火过程中被塑性变形所松弛。 由于形成位错,并且在薄的Si层中滑动,所以穿透位错不会引入上部SiGe材料。 然后可以在SiGe材料上形成用于异质结构的应变硅层。