Semiconductor light emitting device resistible to ultraviolet light
First Claim
1. A semiconductor light emitting device comprising a base having first and second external terminals, a semiconductor light emitting element secured to said base, and a light-permeable coating material for covering said semiconductor light emitting element, said semiconductor light emitting element comprising electrodes electrically connected respectively to said first and second external terminals,wherein said coating material is selected from one of the following:
- (1) a glass of a polymetaloxane formed mainly based on the metaloxane bond from a metal alcoxide, (2) a gel of a polymetaloxane formed from a metal alcoxide, and (3) a ceramic formed from a polysilazane as a ceramic precursor; and
said coating material tightly and strongly adheres directly to the semiconductor light emitting element and electrodes.
1 Assignment
0 Petitions
Accused Products
Abstract
A semiconductor light emitting device is provided with a coating material 10 which directly covers the semiconductor light emitting element 2. The coating material 10 comprises a polymetaloxane or a ceramic having a permeability to the ultraviolet light projected from a semiconductor light emitting element 2. The coating material 10 with resistances to ultraviolet light and heat will not be deteriorated even under a high-temperature environment irradiated with ultraviolet light over a long period of time.
-
Citations
18 Claims
-
1. A semiconductor light emitting device comprising a base having first and second external terminals, a semiconductor light emitting element secured to said base, and a light-permeable coating material for covering said semiconductor light emitting element, said semiconductor light emitting element comprising electrodes electrically connected respectively to said first and second external terminals,
wherein said coating material is selected from one of the following: -
(1) a glass of a polymetaloxane formed mainly based on the metaloxane bond from a metal alcoxide, (2) a gel of a polymetaloxane formed from a metal alcoxide, and (3) a ceramic formed from a polysilazane as a ceramic precursor; and
said coating material tightly and strongly adheres directly to the semiconductor light emitting element and electrodes.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A semiconductor light emitting device comprising a base having first and second external terminals, a semiconductor light emitting element secured to said base, and a light-permeable coating material for covering said semiconductor light emitting element, said semiconductor light emitting element comprising electrodes electrically connected respectively to said first and second external terminals,
wherein said coating material is selected from one of the following: -
(1) a glass of a polymetaloxane formed mainly based on the metaloxane bond, (2) a gel of a polymetaloxane, and (3) a ceramic formed from a ceramic precursor, and said coating material directly adheres to the semiconductor light emitting element and electrodes, said semiconductor light emitting element is secured to said base by an adhesive of the same material as that of said coating material.
-
Specification