| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sink capable of being easily manufactured by using components in common and a manufacturing method of the same.SOLUTION: The heat sink includes: a substrate heat sink 1 provided with a fin 2 at an upper part; and an extension fin 4 formed with a junction part 5 at a lower part. The junction part 5 is press fitted in the fin 2 in a lower direction. |
