SEMICONDUCTOR DEVICE
First Claim
1. A semiconductor device, comprising:
- a wiring substrate having a first surface;
a first semiconductor chip and a second semiconductor chip disposed on the first surface; and
a heat sink having a second surface which faces the first surface and a third surface opposite the second surface, and disposed over the first surface such that the heat sink is disposed on the first semiconductor chip,wherein the heat sink has a first cut-out portion which is formed at a position overlapping the second semiconductor chip in plan view,wherein the first cut-out portion penetrates the heat sink plate in a direction from the third surface toward the second surface, andwherein the second surface of the heat sink is bonded to at least four corners of the first surface of the wiring substrate.
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Accused Products
Abstract
The semiconductor device includes a wiring substrate, a first and second semiconductor chips, and the heat sink. The wiring substrate has a first surface. The first and second semiconductor chips are disposed on the first surface. The heat sink is disposed on the first surface so as to cover the first semiconductor chip. The heat sink has a second surface and the third surface opposite the first surface. The second surface faces the first surface. The heat sink has a first cut-out portion. The first cut-out portion is formed at a position overlapping with the second semiconductor chip in plan view, and penetrates the heat sink in a direction from the third surface toward the second surface. The second surface is joined to at least four corners of the first surface.
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Citations
15 Claims
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1. A semiconductor device, comprising:
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a wiring substrate having a first surface; a first semiconductor chip and a second semiconductor chip disposed on the first surface; and a heat sink having a second surface which faces the first surface and a third surface opposite the second surface, and disposed over the first surface such that the heat sink is disposed on the first semiconductor chip, wherein the heat sink has a first cut-out portion which is formed at a position overlapping the second semiconductor chip in plan view, wherein the first cut-out portion penetrates the heat sink plate in a direction from the third surface toward the second surface, and wherein the second surface of the heat sink is bonded to at least four corners of the first surface of the wiring substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification