Patent ID: 6238953
Filing Date: 2001-05-29
Classification: H01L,H05K,Y02P

Abstract:
A fabrication process for a resin-encapsulated semiconductor device in which a lead frame is employed, in which a die pad and a support bar protruding from a side of the die pad toward a frame selvage are provided in an opening inside the frame selvage, and in which a groove is formed on at least one of a front and rear surfaces of the support bar so that the groove traverses the support bar in a neighborhood of a boundary between the support bar and the die pad along a direction intersecting a protruding direction of the support bar, said fabrication process comprising the steps of:placing a semiconductor element on a front surface of the die pad; andthen, resin encapsulating the semiconductor element and a periphery thereof using an encapsulation metal mold while exposing a rear surface of the die pad to an external environment.