摘要:
In the production process of electronic parts, the static electricity generated when peeling a pressure-sensitive adhesive tape has interfered with the performance of the electronic parts. This problem has been solved by a pressure-sensitive adhesive tape for temporary fixing of electronic parts of the present invention including at least a supporting substrate film and a thermally expandable pressure-sensitive adhesive layer provided on one side of the substrate, wherein the thermally expandable pressure-sensitive adhesive layer contains thermally expandable microspheres and an ionic liquid; the content of the ionic liquid is 0.01 to 10 parts by weight based on 100 parts by weight of a polymer contained in the thermally expandable pressure-sensitive adhesive layer; the surface resistance of the thermally expandable pressure-sensitive adhesive layer is 1.0×1013 Ω/□ or less; and the ratio of the surface resistance after heating for foaming to that before the heating is 5.0 or less.
摘要:
The invention relates to a heat-peelable pressure-sensitive adhesive sheet for cutting a laminated ceramic sheet, which is used for temporary fixing at cutting of the laminated ceramic sheet, the heat-peelable pressure-sensitive adhesive sheet including a base material and, formed on at least one surface of the base material, a heat-expandable pressure-sensitive adhesive layer containing a pressure-sensitive adhesive and a foaming agent, in which the heat-expandable pressure-sensitive adhesive layer has a gel fraction of 50% by weight or more, and the heat-expandable pressure-sensitive adhesive layer has a glass transition temperature of −40° C. to 30° C.
摘要:
The present invention provides a heat-resistant pressure-sensitive adhesive tape for the production of a semiconductor device, including a base material layer and a pressure-sensitive adhesive layer formed on each side of the base material layer, in which at least the pressure-sensitive adhesive layer at a side on which a semiconductor chip is to be encapsulated with a resin contains a silicone pressure-sensitive adhesive. The heat-resistant pressure-sensitive adhesive tape is used for temporarily fixing a chip in a method for producing a substrateless semiconductor package which does not use a metal lead frame.