The Reliability Analysis of the Precision Micro-Punch Life with IC Packing Bag

Following the miniaturized IC parts trend, the size of IC chip from 0806(0.08“×0.06”), 0603(0.06“×0.03”) to 0402(0.04“× 0.02”) has become smaller and smaller. Therefore, the punching size of the IC packing bag should be more accurate, in order to deal with the demand of various forms of IC chips. The accuracy of the packing bag’s punching size depends on the matching clearance of the punch/die. The matching clearance depends on the initial clearance of the punch/die. However, the matching clearance increases as the punch life. The size of clearance will affect the punch wear and punch life. The larger the clearance will increase the punch wear. The size of wear will affect the punch life and packing bag quality of the chip. Therefore, the clearance of the die must be controlled precisely, in order to insure the chip’s packing quality.