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    • 1. 发明专利
    • ADHESIVE SHEET
    • MY164532A
    • 2017-12-29
    • MYPI2013004423
    • 2012-05-28
    • DENKI KAGAKU KOGYO KK
    • SAITO TAKESHITAKATSU TOMOMICHI
    • C09J133/06H01L21/301H01L21/683
    • AN ADHESIVE SHEET WHICH DOES NOT SUFFER FROM DETERIORATION WITH TIME IN CHIP-HOLDING ABILITY IN THE DICING PROCESS NOR CHIP-EXFOLIATING ABILITY IN THE PICKING-UP PROCESS IS PROVIDED. ACCORDING TO THE INVENTION, AN ADHESIVE SHEET FOR DICING AND/OR CONVEYING IS PROVIDED, THE ADHESIVE SHEET COMPRISING A SUBSTRATE AND AN ADHESIVE COMPOSITION LAMINATED THEREON, THE SUBSTRATE INCLUDING POLYVINYL CHLORIDE AND A POLYESTER-BASED PLASTICIZER, WHEREIN THE ADHESIVE COMPOSITION INCLUDES A (METH)ACRYLATE COPOLYMER COMPONENT (A) WITH A WEIGHT-AVERAGE MOLECULAR WEIGHT LOWER THAN 350,000 HAVING A FUNCTIONAL GROUP-CONTAINING MONOMER UNIT; AND A (METH)ACRYLATE COPOLYMER COMPONENT (B) WITH A WEIGHT-AVERAGE MOLECULAR WEIGHT OF 350,000 TO 2,000,000 HAVING A FUNCTIONAL GROUP-CONTAINING MONOMER UNIT, IN A MASS RATIO RANGING FROM 10 : 90 TO 90 : 10, WHEREIN A CONTENT OF A CROSS-LINKING AGENT WHICH REACTS WITH FUNCTIONAL GROUPS OF THE COMPONENT (A) AND THE COMPONENT (B) IS IN A RANGE OF 0.5 TO 20 MASS PARTS WITH RESPECT TO 100 MASS PARTS OF A SUM OF THE COMPONENT (A) AND THE COMPONENT (B), AND WHEREIN 10 TO 95 MASS % OF THE MONOMER UNIT COMPOSING THE COMPONENT (A) IS 2-ETHYLHEXYL ACRYLATE, AND 10 TO 95 MASS % OF THE MONOMER UNIT COMPOSING THE COMPONENT (B) IS BUTYL ACRYLATE.
    • 5. 发明专利
    • METHOD FOR MANUFACTURING ELECTRONIC COMPONENT
    • SG188959A1
    • 2013-05-31
    • SG2013018007
    • 2011-09-14
    • DENKI KAGAKU KOGYO KK
    • SAITO TAKESHITAKATSU TOMOMICHI
    • A method for manufacturing electronic parts, which is characteristic in that permits reduction of contamination to the semi-cured adhesive layer firmed on semiconductor wafer and the cohesive sheet used therein is superior in adhesiveness for example to the lead frame, the method comprising a semi-cured adhesive layer-forming step of forming a se cured adhesive layer by coating a pasty adhesive entirely over the rear face of a wafer and curing the pasty adhesive partially by radiation-ray10 irradiation or heating into the sheet shape, a fixing step of fixing the semi-cured adhesive layer formed on a wafer and a ring frame by bonding them to the cohesive layer of a cohesive sheet a dicing step of dicing the wafer together with the semi-cured adhesive layer with a dicing blade into semiconductor chips, and a pick-up step of picking up the chips carrying the semi-cured adhesive layer from the cohesive layer of the cohesive sheet after radiation-ray irradiation, wherein the photopolymerization initiator in the cohesive layer of the cohesive sheet has a particular property.(no suitable figure)
    • 10. 发明专利
    • Adhesive sheet and method of manufacturing electronic component
    • 粘合片及制造电子元件的方法
    • JP2011233632A
    • 2011-11-17
    • JP2010101105
    • 2010-04-26
    • Denki Kagaku Kogyo Kk電気化学工業株式会社
    • SHIKANO KAZUNORISAITO TAKESHI
    • H01L21/301C09J4/00C09J7/02C09J11/06C09J133/04C09J163/00C09J175/16H01L21/60H01L21/67H01L21/683
    • H01L24/27H01L2224/83191H01L2924/14H01L2924/00
    • PROBLEM TO BE SOLVED: To provide an adhesive sheet capable of improving the adhesion of a die attach film and an adhesive material by the drawing of the adhesive material in a dicing process by improving a dicing property of the adhesive material and improving a pickup property.SOLUTION: In an adhesive sheet 1, an adhesive material forming an adhesive material layer 3 contains a (meta) acrylic ester polymer (A), an ultraviolet polymerizable component (B), a photopolymerization initiator (C), and a curing agent (D). (A) contains 2-ethylhexyl acrylate for 90 to 99% and hydroxyl group containing (meta) acrylate for 10 to 1% while weight-average molecular weight is 200,000 to 700,000, (B) is polyfunctional urethane (meta) acrylate having at least ten acryloyl groups and polyfunctional (meta) acrylate. (C) has a hydroxyl group. (D) has at least three isocyanate groups, and isocyanate group mol amount of (D)/(hydroxyl group mol amount of (A)+(B))=0.6 to 1.2.
    • 解决的问题:提供一种粘合片,其能够通过提高粘合剂材料的切割性能,通过在切割工艺中拉伸粘合剂材料,从而提高模片附着膜和粘合剂材料的粘合性,并改善 拾取财产。 解决方案:在粘合片1中,形成粘合剂层3的粘合剂材料包含(甲基)丙烯酸酯聚合物(A),紫外线可聚合组分(B),光聚合引发剂(C)和固化 代理(D)。 (A)含有丙烯酸2-乙基己酯90〜99%,羟基(甲基)丙烯酸酯占10〜1%,重均分子量为200,000〜700,000,(B)为多官能氨基甲酸酯 十个丙烯酰基和多官能(甲基)丙烯酸酯。 (C)具有羟基。 (D)具有至少三个异氰酸酯基,异氰酸酯基摩尔量的(D)/((A)+(B))的羟基摩尔量= 0.6〜1.2。 版权所有(C)2012,JPO&INPIT