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    • 2. 发明公开
    • SUBSTRATE WAFER PRODUCTION METHOD AND SUBSTRATE WAFER
    • EP4155025A1
    • 2023-03-29
    • EP21808888.8
    • 2021-03-17
    • Shin-Etsu Handotai Co., Ltd.
    • TAGA, RyoTANAKA, Yuki
    • B24B1/00B24B7/04B24B37/005H01L21/304
    • The present invention provides a manufacturing method for a substrate wafer, including: providing a wafer having a first main surface and a second main surface; forming a flattening resin layer on the second main surface; with the flattening resin layer adsorbed and held as a reference surface, grinding or polishing the first main surface as a first processing; removing the flattening resin layer from the wafer; with the first main surface of the wafer subjected to the first processing adsorbed and held, grinding or polishing the second main surface as a second processing; with the second main surface subjected to the second processing adsorbed and held, further grinding or polishing the first main surface as a third processing; with the first main surface subjected to the third processing adsorbed and held, further grinding or polishing the second main surface as a fourth processing to obtain a substrate wafer, wherein the first processing and/or the third processing is executed such that the wafer has a central concave or central convex thickness distribution. As a result, there can be provided a manufacturing method for a substrate wafer capable of manufacturing a substrate wafer having a warp and an excellent nanotopography.
    • 10. 发明公开
    • POLISHING DEVICE
    • SCHLEIFVORRICHTUNG
    • EP0992322A4
    • 2006-09-27
    • EP99912102
    • 1999-04-05
    • EBARA CORP
    • KIMURA NORIOMARUYAMA TORUKOJIMA SHUNICHIROKATSUOKA SEIJIOHWADA SHIN
    • B24B37/00B24B37/005B24B37/32B24B49/16B24B55/02H01L21/304
    • B24B37/32B24B49/16
    • A polishing device for polishing an object to be polished such as a semiconductor wafer to a flat and mirror finish, comprising a turn table on the upper surface of which an abrasive cloth is pasted and a top ring (1), wherein a semiconductor wafer interposed between the turn table and the top ring (1) is pressed with a specified strength and is polished to a flat and mirror finish, the polishing device further comprising a vertically movable pressing ring (3) disposed around the top ring (1) having a recess to receive a semiconductor wafer and a pressing means (22) for pressing the pressing ring (3) to the abrasive cloth with a variable force, the pressing ring (3) being supported on the top ring (1) via a bearing (37).
    • 1。一种研磨装置,其将半导体晶片等被研磨物研磨成平坦且镜面精加工,其特征在于,在上表面粘贴有研磨布的转台和顶环(1)中, 在转台和顶环(1)之间以规定的强度压制并且抛光成平坦且镜面抛光,所述抛光装置还包括围绕顶环(1)设置的可垂直移动的压环(3),所述压环 用于容纳半导体晶片的凹槽以及用于以可变力将压环(3)压到砂布上的压紧装置(22),压环(3)通过轴承(37)支撑在顶环(1)上, )。