An adhesive sheet for a semiconductor connecting substrate consisting of a laminate having an adhesive layer on a substrate, wherein said adhesive layer contains a thermoplastic resin (A) and an epoxy resin (B) and said epoxy resin (B) contains at least one epoxy resin (B) selected from (I) dicyclopentadiene skeleton-containing epoxy resins, (II) terpene skeleton-containing epoxy resins, (III) biphenyl skeleton-containing epoxy resins and (IV) naphthalene skeleton-containing epoxy resins as an essential component; an adhesive-backed tape for TAB consisting of a laminate having an adhesive layer and a protective film layer on a flexible organic insulating film, wherein said adhesive layer has a softening temperature of 60 to 110°C after having been cured and 50 hours or more in the insulation resistance dropping time after having been allowed to stand in an environment of 130°C and 85% RH with DC 100 V applied; and a tape with adhesive for wire bonding connection consisting of a laminate having an adhesive layer and a protective film layer on a flexible organic insulating film, wherein said adhesive layer has a softening temperature of 120 to 170°C after having been cured, a storage elastic modulus E of 20 to 100 MPa at 150°C and an insulation resistance dropping time of 50 hours or more after having been allowed to stand in an environment of 130°C and 85% RH with DC 100 V applied. The adhesive sheet for a semiconductor connecting substrate, the adhesive-backed tape for TAB and the adhesive-backed tape for wire bonding connection of the present invention are excellent in adhesive strength, insulatability, dimensional accuracy, etc., and can improve the reliability of a semiconductor integrated circuit connecting substrate and a semiconductor device respectively for high density packaging.
一种用于半导体连接基板的粘合片,包括在基板上具有粘合层的层压板,其中所述粘合层包含热塑性
树脂(A)和环氧
树脂(B),并且所述环氧
树脂(B)包含至少一种选自(I)含双
环戊二烯骨架环氧
树脂、(II)含萜烯骨架环氧
树脂、(III)含
联苯骨架环氧
树脂和(IV)含
萘骨架环氧
树脂的环氧
树脂(B)作为基本成分;一种用于 TAB 的背胶胶带,由在柔性有机绝缘薄膜上具有粘合剂层和保护膜层的层压板组成,其中所述粘合剂层在固化后的软化温度为 60 至 110°C,在 130°C 和 85% 相对湿度的环境中放置 50 小时或更长时间后,绝缘电阻下降时间为直流 100 V;一种用于导线粘合连接的带粘合剂的胶带,包括在柔性有机绝缘薄膜上具有粘合剂层和保护膜层的层压板,其中所述粘合剂层在固化后的软化温度为 120 至 170°C,在 150°C 时的存储弹性模量 E 为 20 至 100 兆帕,在 130°C 和 85% 相对湿度的环境中放置 50 小时或更长时间并施加直流 100 伏电压后的绝缘电阻下降时间。本发明的半导体连接基板用粘合片、TAB用背胶胶带和导线键合连接用背胶胶带在粘合强度、绝缘性、尺寸精度等方面都非常出色,可分别提高用于高密度封装的半导体集成电路连接基板和半导体器件的可靠性。