DOUBLE-SIDED SUBSTRATE AND ELECTRODE CONNECTION USING BOTH-SIDED SUBSTRATE

摘要

PURPOSE: To stabilize electrode connection quality of a both-sided substrate so as to improve its yield. CONSTITUTION: This both-sided substrate is provided with a metal plate which is a good heat-conducting body and a pre-preg 11 to be laminated on both surfaces of the metal plate 10 for forming a circuit pattern 12 on its surface while being,constituted that a projection part 10a of the metal plate 10 projects from an end face of the pre-preg 11. Thereby, heat for electrode connection can be efficiently supplied to an electrode pad of a semiconductor device 16, which is an electrode connection spot, and a circuit pattern 12 through the projection part 10a.