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    • 3. 发明申请
    • REMOVAL OF ETCHING PROCESS RESIDUAL IN SEMICONDUCTOR FABRICATION
    • 在半导体制造中去除蚀刻工艺残留
    • WO2008091923A3
    • 2009-12-30
    • PCT/US2008051758
    • 2008-01-23
    • IBMHERRIN RUSSELL TLINDGREN PETER JSTAMPER ANTHONY K
    • HERRIN RUSSELL TLINDGREN PETER JSTAMPER ANTHONY K
    • C11D7/00
    • H01L23/5223H01L21/02063H01L28/40H01L2924/0002H01L2924/00
    • A semiconductor structure and methods for forming the same. A semiconductor fabrication method includes steps of providing a structure. A structure incl udes (a) a dielectric layer, (b) a first electrically conductive region buried in the dielectric layer, wherein the first electrically conductive region comprises a first electrically conductive material, and (c) a second electrically conductive region buried in the dielectric layer, wherein the second electrically conductive region comprises a second electrically conductive material being different from the first electrically conductive material. The method further includes the steps of creating a first hole and a second hole in the dielectric layer resulting in the first and second electrically conductive regions being exposed to a surrounding ambient through the first and second holes, respectively. Then, the method further includes the steps of introducing a basic solvent to bottom walls and side walls of the first and second holes.
    • 半导体结构及其形成方法。 半导体制造方法包括提供结构的步骤。 一种结构包括(a)介电层,(b)掩埋在所述电介质层中的第一导电区域,其中所述第一导电区域包括第一导电材料,和(c)第二导电区域, 介电层,其中第二导电区域包括不同于第一导电材料的第二导电材料。 该方法还包括以下步骤:在电介质层中形成第一孔和第二孔,导致第一和第二导电区域分别通过第一孔和第二孔暴露于周围环境。 然后,该方法还包括将碱性溶剂引入第一孔和第二孔的底壁和侧壁的步骤。