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    • 27. 发明专利
    • Adhesive sheet
    • 粘合片
    • JP2008231243A
    • 2008-10-02
    • JP2007072510
    • 2007-03-20
    • Lintec Corpリンテック株式会社
    • KANO KEIKOMAEDA ATSUSHIITO MASAHARU
    • C09J7/02C09J133/00C09J175/16
    • B32B27/30B32B27/40C08G18/44C08G18/4825C08G18/4854C08G18/672C08G18/73C08G18/755C08G18/765C08L33/08C08L33/14C09D133/08C09D133/14C09J7/385C09J175/16C09J2205/31C09J2433/00C09J2475/00Y10T428/2809C08G18/48C08L2666/04
    • PROBLEM TO BE SOLVED: To realize an adhesive sheet having an excellent adhesive force, unevenness followability to a wafer circuit surface, etc., preventing the penetration of grinding water into a wafer circuit surface in grinding and free from the troubles of the generation of an adhesive residue. SOLUTION: The adhesive sheet comprises a substrate and an energy ray-curable adhesive layer formed on the surface of the substrate. The energy ray-curable adhesive layer contains an energy ray-curable acrylic copolymer and an energy ray-curable urethane acrylate. The energy ray-curable urethane acrylate is produced by using isocyanates such as IPDI, TMDI and TMXDI and has excellent compatibility to the energy ray-curable acrylic copolymer. Consequently, the adhesive sheet can surely prevent the penetration of grinding water in the grinding process of a wafer and the generation of adhesive residue in the peeling step from the wafer, etc. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了实现具有优异的粘合力,对晶片电路表面等的不均匀性的粘合片,防止研磨水在研磨中渗透到晶片电路表面中,并且不会发生 产生粘合剂残留物。 解决方案:粘合片包括基材和形成在基材表面上的能量射线固化粘合剂层。 能量射线固化性粘合剂层含有能量射线固化型丙烯酸共聚物和能量射线固化型聚氨酯丙烯酸酯。 能量射线固化性聚氨酯丙烯酸酯是通过使用异氰酸酯如IPDI,TMDI和TMXDI制备的,并且与能量射线固化性丙烯酸共聚物具有优异的相容性。 因此,粘合片可以可靠地防止研磨水在晶片的研磨过程中的渗透以及在晶片的剥离步骤中产生粘合残留物等。版权所有(C)2009,JPO&INPIT