WORKING METHOD FOR METAL MATERIAL AND SEMICONDUCTOR APPARATUS FABRICATED BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for a diode base by which the diode base is highly accurately manufactured with excellent productivity. SOLUTION: This manufacturing method for the diode base comprises constraining a circumference of a blank made of Cu-Mo composite material and one of surfaces to be worked with the use of a die, and using a working punch or a counter punch to apply working pressure to either of the surface to be worked, thereby affording a cup-shaped body. The press working of the blank is performed by setting the worked surface to≤5% of the whole surface area of the blank. COPYRIGHT: (C)2004,JPO&NCIPI