Caulking heat sink, heat sink integrated power module, manufacturing method of caulking heat sink, and manufacturing method of heat sink integrated power module

摘要

A swaged heat includes a fin base having an outer periphery, and formed with a first fin insert groove and a second fin insert groove interposing a swage portion of a bi-forked shape in between, a first fin fixed to the first fin insert groove of the fin base using the swage portion, a second fin fixed to the second fin insert groove of the fin base using the swage portion, a panel having an opening portion, and placed on the outer periphery of the fin base. The thickness of the outer periphery is smaller than that of the fin base.