Patent ID: 7757930

Claim:
A method of fabricating a semiconductor integrated circuit device, comprising the steps of: (a) providing a substrate; (b) disposing a plurality of semiconductor chips over a stage; (c) disposing the substrate over first main surface sides of the plural semiconductor chips; and (d) pressurizing the plural semiconductor chips correspondingly by a plurality of pressure blocks while heating the semiconductor chips from second main surface sides of the chips by the stage, the plural pressure blocks being supported each independently movably in corresponding relation to the semiconductor chips, thereby thermocompression bonding the semiconductor chips all together to the substrate, wherein said step (d) comprises: (d1) pressurizing the plural semiconductor chips by a first pressure; and (d2) after the step (d1), pressurizing the plural semiconductor chips by a second pressure which is higher than said first pressure, and wherein in the step (d1) the semiconductor chips are bonded to the substrate by a temporary bonding, with a main bonding being performed in the step (d2).