Semiconductor Device
First Claim
1. A semiconductor device comprising:
- a wiring substrate;
a semiconductor element mounted on the wiring substrate;
a first radiator member arranged on the semiconductor element and thermally coupled to the semiconductor element; and
a second radiator member arranged on the first radiator member and thermally coupled to the first radiator member;
whereinthe second radiator member includes a plurality of projections which project out toward the first radiator member, the plurality of projections being formed on a circumference of a concentric circle with respect to a center point of the second radiator member when the second radiator member is viewed from above;
the first radiator member includes a plurality of grooves in which the plurality of projections are movable, the plurality of grooves being formed on a circumference of a concentric circle with respect to a center point of the first radiator member when the first radiator member is viewed from above, each of the plurality of grooves including a terminating end; and
each of the plurality of projections is fitted to the terminating end of a corresponding one of the plurality of grooves with the center point of the first radiator member and the center point of the second radiator member coincided.
1 Assignment
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Accused Products
Abstract
A semiconductor device includes a wiring substrate, a semiconductor element mounted on the wiring substrate, a first radiator member arranged on and thermally coupled to the semiconductor element, and a second radiator member arranged on and thermally coupled to the first radiator member. The second radiator member includes projections which project out toward the first radiator member. The projections are formed on a circumference of a concentric circle with respect to a center point of the second radiator member. The first radiator member includes grooves in which the projections are movable. The grooves are formed on a circumference of a concentric circle with respect to a center point of the first radiator member. The projections are fitted to terminating ends of the grooves with the center point of the first radiator member and the center point of the second radiator member coincided.
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Citations
10 Claims
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1. A semiconductor device comprising:
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a wiring substrate; a semiconductor element mounted on the wiring substrate; a first radiator member arranged on the semiconductor element and thermally coupled to the semiconductor element; and a second radiator member arranged on the first radiator member and thermally coupled to the first radiator member;
whereinthe second radiator member includes a plurality of projections which project out toward the first radiator member, the plurality of projections being formed on a circumference of a concentric circle with respect to a center point of the second radiator member when the second radiator member is viewed from above; the first radiator member includes a plurality of grooves in which the plurality of projections are movable, the plurality of grooves being formed on a circumference of a concentric circle with respect to a center point of the first radiator member when the first radiator member is viewed from above, each of the plurality of grooves including a terminating end; and each of the plurality of projections is fitted to the terminating end of a corresponding one of the plurality of grooves with the center point of the first radiator member and the center point of the second radiator member coincided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A semiconductor device comprising:
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a wiring substrate; a semiconductor element mounted on the wiring substrate; a first radiator member arranged on the semiconductor element and thermally coupled to the semiconductor element; and a second radiator member arranged on the first radiator member and thermally coupled to the first radiator member;
whereinthe first radiator member includes a plurality of projections which project out toward the second radiator member, the plurality of projections being formed on a circumference of a concentric circle with respect to a center point of the first radiator member when the first radiator member is viewed from above; the second radiator member includes a plurality of grooves in which the plurality of projections are movable, the plurality of grooves being formed on a circumference of a concentric circle with respect to a center point of the second radiator member when the second radiator member is viewed from above, each of the plurality of grooves including a terminating end; and each of the plurality of projections is fitted to the terminating end of a corresponding one of the plurality of grooves with the center point of the first radiator member and the center point of the second radiator member coincided.
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Specification