Circuit board having a heating means and a hermetically sealed multi-chip package
First Claim
1. A multi-chip package comprising:
- a substrate having a first surface, a second surface opposing the first surface, and side surfaces, the side surfaces are substantially perpendicular to the first and second surfaces;
a plurality of semiconductor chips electrically coupled to at least one of the first surface and the second surface of the substrate;
a heat dissipater thermally coupled to a portion of the first surface and a portion of the second surface of the substrate, the heat dissipater forming a hermetically sealed cavity around the semiconductor chips and at least a portion of the substrate, such that the heat dissipater is not mechanically coupled to an entire portion of said first and second surfaces, the heat dissipater being separated from one of the side surfaces by a distance; and
a plurality of thermal interfaces disposed between the semiconductor chips and the heat dissipater.
1 Assignment
0 Petitions
Accused Products
Abstract
A circuit board having heating elements and a hermetically sealed multi-chip package. The multi-chip package includes a plurality of semiconductor chips, a substrate electrically coupled to the plurality of semiconductor chips, heat dissipation means, and a plurality of thermal interfaces disposed between the semiconductor chips and the heat dissipation means. The heat dissipation means forms a hermetically sealed cavity that encloses the semiconductor chips and at least a portion of the substrate. The circuit board includes a chip mounting surface, a chip mounting area on the chip mounting surface, the chip mounting area including a plurality of lands, and heating elements connected to the lands, the heating elements capable heating a joint formed between the lands and electrode pads of a semiconductor chip.
57 Citations
19 Claims
-
1. A multi-chip package comprising:
-
a substrate having a first surface, a second surface opposing the first surface, and side surfaces, the side surfaces are substantially perpendicular to the first and second surfaces; a plurality of semiconductor chips electrically coupled to at least one of the first surface and the second surface of the substrate; a heat dissipater thermally coupled to a portion of the first surface and a portion of the second surface of the substrate, the heat dissipater forming a hermetically sealed cavity around the semiconductor chips and at least a portion of the substrate, such that the heat dissipater is not mechanically coupled to an entire portion of said first and second surfaces, the heat dissipater being separated from one of the side surfaces by a distance; and a plurality of thermal interfaces disposed between the semiconductor chips and the heat dissipater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A multi-chip package, comprising:
-
a substrate having a first surface, a second surface, and side surfaces; a plurality of semiconductor chips electrically coupled to at least one of the first surface and the second surface of the substrate; a heat dissipater thermally coupled to a portion of the first surface and a portion of the second surface of the substrate, the heat dissipater forming a hermetically sealed cavity around the semiconductor chips and at least a portion of the substrate, such that the heat dissipater is not mechanically coupled to an entire portion of said first and second surfaces, the heat dissipater surrounds one of the side surfaces to form a distance between the side surface and the heat dissipater; and a plurality of thermal interfaces disposed between the semiconductor chips and the heat dissipater.
-
Specification