Power semiconductor device
First Claim
1. A power semiconductor device comprising:
- a heat spreader having a first main surface and a second main surface that are opposite to each other;
a power semiconductor element provided on said first main surface;
a mold resin casing having one main surface that is placed in a same plane with said second main surface and an other main surface that is placed opposite to said one main surface, said mold resin casing covering said heat spreader and said power semiconductor element and exposing said second main surface; and
at least one through hole formed in a non-peripheral portion of said mold resin casing, said at least one through hole passing through between said one main surface and said other main surface while avoiding said power semiconductor element and said heat spreader.
1 Assignment
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Accused Products
Abstract
A small-sized, light-weight, low-cost power semiconductor device with excellent productivity and vibration resistance is obtained. A mold resin casing (1) is made of a thermosetting resin, such as epoxy resin, and has a top surface (1T) and a bottom surface (1B). A through hole (2) is formed in a non-peripheral portion (in this example, approximately in the center) of the mold resin casing (1) to pass through between the top surface (1T) and the bottom surface (1B). Electrodes (3N, 3P, 4a, 4b) have their first ends projected from sides of the mold resin casing (1). The bottom surface (5B) of a heat spreader (5) is exposed in the bottom surface (1B) of the mold resin casing (1). The heat spreader (5) has an opening (6) formed around the through hole (2).
33 Citations
14 Claims
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1. A power semiconductor device comprising:
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a heat spreader having a first main surface and a second main surface that are opposite to each other;
a power semiconductor element provided on said first main surface;
a mold resin casing having one main surface that is placed in a same plane with said second main surface and an other main surface that is placed opposite to said one main surface, said mold resin casing covering said heat spreader and said power semiconductor element and exposing said second main surface; and
at least one through hole formed in a non-peripheral portion of said mold resin casing, said at least one through hole passing through between said one main surface and said other main surface while avoiding said power semiconductor element and said heat spreader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A power semiconductor device comprising:
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a heat spreader having a first main surface and a second main surface that are opposite to each other;
a power semiconductor element provided on said first main surface;
a mold resin casing havina one main surface that is placed in a same plane with said second main surface and an other main surface that is placed opposite to said one main surface, said mold resin casing covering said heat spreader and said power semiconductor element and exposing said second main surface; and
at least one through hole formed in a non-peripheral portion of said mold resin casing, said at least one through hole passing through between said one main surface and said other main surface while avoiding said power semiconductor element and said heat spreader, wherein said mold resin casing is curved in such a way that a central portion of said one main surface protrudes relative to its peripheral portion.
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Specification