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US 4,394,679 AGranted
Light emitting device with a continuous layer of copper covering the entire header
AssigneeRCA Corporation
InventorFrank Z. Hawrylo
Life of this patent
Estimating the term…
Abstract
The invention is an improved light emitting device comprising a light emitting element mounted on a header wherein the improvement comprises a thin layer of copper overlying the surface of the header including both the base and the stud. A large increase in the yield of useable devices is obtained for a light emitting element mounted on the header which emits between about 1.0 and about 1.7 micrometers.
Claims6
In a light emitting device which comprises:
- a base plate having two major surfaces;
- a stud axially mounted on a first major surface;
- a copper block mounted on the second major surface of the base plate;
- and
- a light emitting element mounted on the copper block;
- the improvement which comprises:
- a continuous layer of copper between about 5 and about 125 micrometers thick covering the base, the copper block and the stud.
4 more elements
In a header which comprises:
- a base plate having two major surfaces;
- a stud axially mounted to a first major surface;
- and a copper block mounted on the second major surface;
- the improvement which comprises:
- a continuous layer of copper between about 5 and about 125 micrometers thick covering the entire header.
2 more elements
Dependencies are inferred from the claim text.