Silicon rubber hot pressing thermocompression

        This year, as a portable computer, printers, cameras, navigation system, portable TV, TV wall, thin television display, using a liquid crystal display panel is increased. Manufacturing the liquid crystal display panel is, in order to drive liquid crystal, after connected with the liquid crystal display panel electrode for driving and carrying a LSI flexible printed circuit board FPC lead electrode, through the anisotropic conductive adhesive for hot pressing, electrical and mechanical connection.

        At this time, in order to make the pressurized by a tool to the anisotropic conductive adhesive transfer uniform pressure is applied at the same time, using the thermocompression bonding sheet sandwiched between FPC compression tool box. The thermocompression bonding sheet is also sometimes use the Teflon and fluorine resin film, and to uniformly applied pressure, general use with low elasticity, softness, colleague has good heat transfer properties of silicone rubber.

         Silicon rubber sheet for hot pressing is mainly played in heat transfer, simultaneously and uniformly applied pressure. The sheet is used as a hot pressing sheet has excellent surface from the type, not attached around the device components or compression bonded material; in the laminate or a soft printed circuit board forming, or by anisotropic conductive adhesive, and the liquid crystal display panel and connected to the electrode and a flexible printed circuit board the lead electrode for electrical and mechanical connection is used in.

         Silicon rubber sheet for hot pressing surface from the good, not around the device or be pressed adhesion complexes, and has high intensity, uniform pressures exerted by the softness of thermocompression bonding silicone rubber. The silicon rubber sheet for hot pressing is the first silicon rubber layer on at least one side is provided, and the first silicon rubber layer has a different composition of second silicone rubber layer of silicone rubber composition, characterized in that, the first silicon rubber layer is a silicone rubber composition layer.