Methods for fabricating semiconductor devices having local contacts
    4.
    发明授权
    Methods for fabricating semiconductor devices having local contacts 有权
    制造具有局部接触的半导体器件的方法

    公开(公告)号:US08216928B1

    公开(公告)日:2012-07-10

    申请号:US13014561

    申请日:2011-01-26

    IPC分类号: H01L21/44

    摘要: Fabrication methods for semiconductor device structures are provided. One method for fabricating a semiconductor device structure that includes a gate structure overlying a semiconductor substrate and a doped region formed in the semiconductor substrate adjacent to the gate structure involves the steps of forming a first layer of dielectric material overlying the gate structure and the doped region, isotropically etching the first layer of dielectric material, forming a second layer of dielectric material overlying the first layer of dielectric material after isotropically etching the first layer, and forming a conductive contact that is electrically connected to the doped region within the first layer and the second layer.

    摘要翻译: 提供半导体器件结构的制造方法。 制造半导体器件结构的一种方法包括覆盖半导体衬底的栅极结构和形成在与栅极结构相邻的半导体衬底中的掺杂区域的半导体器件结构包括以下步骤:形成覆盖栅极结构和掺杂区域的第一绝缘材料层 各向同性蚀刻所述第一介电材料层,在各向同性蚀刻所述第一层之后形成覆盖所述第一介电材料层的第二介电材料层,以及形成电连接到所述第一层内的所述掺杂区域的导电接触,以及 第二层。

    Method for forming a metal silicide having a lower potential for containing material defects
    5.
    发明授权
    Method for forming a metal silicide having a lower potential for containing material defects 有权
    用于形成含有材料缺陷的较低电位的金属硅化物的方法

    公开(公告)号:US07985668B1

    公开(公告)日:2011-07-26

    申请号:US12948463

    申请日:2010-11-17

    IPC分类号: H01L21/00

    摘要: Generally, the present disclosure is directed to a method of removing “weakened” areas of a metal silicide layer during silicide layer formation, thereby reducing the likelihood that material defects might occur during subsequent device manufacturing. One illustrative embodiment includes depositing a first layer of a refractory metal on a surface of a silicon-containing material, and performing first and second heating processes. The method further comprises performing a cleaning process, depositing a second layer of the refractory metal above the silicon-containing material, and performing a third heating process.

    摘要翻译: 通常,本公开涉及在硅化物层形成期间去除金属硅化物层的“弱化”区域的方法,从而减少在随后的器件制造期间可能发生材料缺陷的可能性。 一个示例性实施例包括在含硅材料的表面上沉积难熔金属的第一层,以及进行第一和第二加热过程。 所述方法还包括进行清洗过程,在所述含硅材料上方沉积所述难熔金属的第二层,以及执行第三加热过程。