METHOD FOR MANUFACTURING HEAT-SINK PLATE, AND HEAT-SINK STRUCTURE

摘要

PROBLEM TO BE SOLVED: To realize a heat-sink plate 1 such that heat strain is hardly caused. SOLUTION: The joining of a cooling hole 2 and a cover 4 in the heat-sink plate 1 having the cooling hole in the inner part and closing the cooling hole with the cover and composed of a copper or a copper alloy or an aluminum or an aluminum alloy, is metallically joined with a friction-stirring joining by using a rotary tool 5. The heat-sink plate joined with the friction-stirring joining is small in heat strain, and after joining, an amendment-work is unnecessary. COPYRIGHT: (C)2006,JPO&NCIPI