Patent ID: 7500308
Filing Date: 2009-03-10
Classification: H01L,H05K,Y02P,Y10T

Abstract:
1. A method of detaching an electronic component from a printed circuit board, comprising: heating a solder bump to a melting temperature between the electronic component and the printed circuit board, said solder bump having a constriction standing on a surface of a conductive pad on the printed circuit board; holding an insulated film superposed on the conductive pad, the insulated film defining a through hole receiving the solder bump inside to form the constriction in the solder bump; sliding the insulated film along the conductive pad so as to wipe the solder bump from the conductive pad when the solder bump is kept at the melting temperature; and lifting up the electronic component from the printed circuit board along with the solder bump after the insulated film has been slid.