Patent ID: 7961474
Filing Date: 2011-06-14
Classification: F28F,H01L,H05K

Abstract:
1. A heat dissipation device provided on one face side of an insulating substrate, which has a semiconductor element disposed on the other face side thereof, comprising: a first planar member that includes an insulating substrate-side joint face joined to the insulating substrate, and a first joint face on the side of the first planar member opposite the insulating substrate-side joint face; a second planar member that includes a second joint face that faces the first joint face; and a radiator fin that is corrugated and arranged between the first planar member and the second planar member, wherein a peak portion of the radiator fin is joined to the first joint face, and the radiator fin includes a first region that has a height in an amplitude direction which is equal to a distance between the first planar member and the second planar member and includes a joint peak portion joined to the second joint face and a second region that has a height in the amplitude direction which is shorter than the distance between the first planar member and the second planar member and includes a non-joint peak portion separated from the second joint face by a gap.