METHOD AND APPARATUS FOR CONNECTING PRINTED WIRING BOARDS

摘要

Provided is a method for connecting printed wiring boards at least one of which is a flexible printed wiring board. A connecting terminal (4) of one printed wiring board (3) is placed over a connecting terminal (2) of the other printed wiring board (1) at a plurality of areas separated in a longitudinal direction by having an adhesive resin (6) in between. Pressure is applied to the both printed wiring boards while applying ultrasonic oscillation in a status where the adhesive resin is unhardened, and connecting terminals are bonded by solid phase intermetallic bonding at a plurality of areas. Since a time required for the solid phase intermetallic bonding (room temperature bonding) is extremely short, pressurization can be stopped without waiting for the resin to harden. Operating rate of the connecting apparatus is improved, and thus productivity is improved.