Patent ID: 7075036

Claim:
An electronic part compression bonding apparatus, comprising: a compression bonding unit which performs thermocompression bonding of electronic parts by pressing the electronic parts onto a substrate by a raising/lowering operation of a lifting unit; a pressure supply unit which applies pressure to the compression bonding unit; a pressure control unit which controls pressure supplied by the pressure supply unit; a heating unit which is built in the compression bonding unit and heats the compression bonding unit; a temperature control unit which controls a heating value of the heating unit; a substrate support unit which is located to face the compression bonding unit and supports the substrate during a thermocompression bonding operation by the compression bonding unit; and a thermocompression bonding control unit which controls the pressure control unit and the heating unit based on thermocompression bonding condition data stored in a storage section, the thermocompression bonding condition data depending on elongation properties of the electronic parts, wherein at least one of pressure and heating temperature is variably set during a process from start until completion of the thermocompression bonding operation of the electronic parts in the thermocompression bonding condition data, wherein, in the thermocompression bonding condition data, the pressure is set to a first pressure, which is higher than a pressure required for the thermocompression bonding, at a first stage of the process of the thermocompression bonding operation and to a second pressure, which is lower than the first pressure, in a second stage which follows the first stage, so as to adjust an elongation amount of the electronic parts to a smaller amount.