SEMICONDUCTOR DEVICE AND PREPARATION THERE OF AND BONDING WIRE USED THERE OF

摘要

A resin encapsulated semiconductor device comprises a semiconductor element (3), a conductive terminal (4) and a wire (1) connecting the element (3) and the terminal (4). A thermosetting resin (12) encapsulates the component hermetically to protect the device from a mechanical stress and ambient atmosphere. In order to achieve good bonding of the wire (1) at its ends, the wire (1) is made of a metal (e.g. Al) having in the annealed state a maximum elongation at room temperature of not more than 60%, the wire having been annealed before the bonding.