Patent ID: 9627348
Date: 2017-04-18
CPC Classifications: H01L,H05K

Claim:
1. A method for manufacturing a semiconductor device, the method comprising: forming flux on a circuit pattern on a circuit board; placing a semiconductor die on the circuit board where a bump on the semiconductor die contacts the flux; placing a jig plate on the semiconductor die; reflowing the bump by heating the jig plate with a laser beam directed toward the jig plate, transferring heat from the jig plate to the bump via the semiconductor die, volatizing the flux, and making an electrical connection between the bump and the circuit pattern; removing the jig plate from the semiconductor die; and reducing warpage during heating or cooling of the semiconductor die by applying pressure to the jig plate; wherein jig bars extend outward from the jig plate and are in contact with the circuit board during said applying pressure to the jig plate.