Package with environmental control material carrier
First Claim
1. A semiconductor package, comprising:
- a substrate;
a semiconductor device supported by said substrate;
a environmental control materials carrier assembly supported by said substrate; and
a top cover supported by said substrate to enclose said semiconductor device and said environmental control materials carrier assembly.
1 Assignment
0 Petitions
Accused Products
Abstract
A drop-in environmental control material carrier assembly 55, which improves the performance and lowers the cost of semiconductor packages. The environmental control materials are positioned inside the package cavity by means of a drop-in environmental control material carrier assembly 54, which can hold up to eight materials. Three types of environmental control materials are typically used in micromirror packages: (1) one for absorbing moisture inside the package, (2) one for absorbing adhesive outgassing constituents inside the package, and (3) one for storing the PFDA lubricant used to prevent the micromirror mirrors from sticking. The performance and lifetime of the micromirror devices are improved and the cost of projection display systems, in which these micromirrors are central components, is lowered.
50 Citations
18 Claims
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1. A semiconductor package, comprising:
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a substrate;
a semiconductor device supported by said substrate;
a environmental control materials carrier assembly supported by said substrate; and
a top cover supported by said substrate to enclose said semiconductor device and said environmental control materials carrier assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A semiconductor package comprising:
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a substrate a semiconductor device supported by said substrate;
a environmental control materials carrier assembly supported by said substrate, said environmental control materials carrier assembly comprising;
a frame having at least two slots; and
environmental control material mounted in at least one of said slots; and
a top cover supported by said substrate to enclose said semiconductor device and said environmental control materials carrier assembly. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A semiconductor package, comprising:
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a substrate;
a semiconductor device supported by said substrate;
a environmental control materials carrier assembly supported by said substrate;
environmental control material supported by said environmental control materials carrier assembly; and
a top cover supported by said substrate to enclose said semiconductor device and said environmental control materials carrier assembly.
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Specification