Patent ID: 8758546

Claim:
A method for producing a multi-chip module by applying heat and pressure to a plurality of chip devices on a substrate through an adhesive with a bonding head to perform multi-chip packaging, the method comprising the steps (A) to (C): Step (A): aligning the plurality of chip devices on the substrate through the adhesive to perform temporary adhesion; Step (B): disposing a buffer film between the chip devices and the bonding head, the buffer film comprising a heat-resistant resin layer and a flexible layer formed thereon, wherein the heat-resistant resin layer has a linear expansion coefficient of 80 ppm/° C. or lower and the flexible resin layer is made of a resin material having a Shore A hardness according to JIS-K6253 of 10 to 80, so that the heat-resistant resin layer is on a chip device side; and Step (C): connecting the plurality of chip devices with the substrate by applying heat and pressure to the chip devices toward the substrate through the buffer film for multi-chip packaging with the bonding head.