EP0390209A2
Expired / Lapsed
EP
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Diamond light-emitting device
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1990-03-30
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Granted: —
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Expires: 2010-03-30
Abstract
Abstract A light-emitting device comprising a substrate of single-crystal diamond, a boron-doped epitaxial layer that is grown on the principal surface of the substrate by a vapor-phase synthesis technique, and a positive and a negative electrode which are formed on the epitaxial layer, the negative electrode being made of a metal selected from the group consisting of tungsten, molybdenum, gold and aluminum.
Inventors
- 👤 Naoji C/O Itami Works Fujimori
- 👤 Yoshiki C/O Itami Works Nishibayashi
- 👤 Hiromu C/O Itami Works Shiomi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 15:13
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/83; H10H20/832; H10H20/01; H10H20/011; H10H20/014; H10H20/81; H10H20/822; H10H20/826
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
61 words
A light-emitting device, comprising: a substrate of single-crystal diamond; a boron-doped epitaxial layer that is grown on a principal surface of said substrate by a vapor-phase synthesis technique; and a positive and a negative electrode which are formed on said epitaxial layer, said negative electrode being made of a metal selected from the group consisting of tungsten, molybdenum, gold and aluminum.
Claim 2
Dependent Claim
61 words
A light-emitting device, comprising: a substrate of single-crystal diamond; a boron-doped epitaxial layer that is grown on a principal surface of said substrate by a vapor-phase synthesis technique; and a positive and a negative electrode which are formed on said epitaxial layer, said negative electrode being made of a metal selected from the group consisting of tungsten, molybdenum, gold and aluminum.
Claim 3
Dependent Claim
16 words
A light-emitting device as claimed in claim 1, wherein said positive electrode is made of titanium.
Claim 4
Dependent Claim
20 words
A light-emitting device as claimed in claim 1, wherein said single-crystal diamond is a diamond of Ib or IIa type.
Claim 5
Dependent Claim
19 words
A light-emitting device as claimed in claim 1, wherein said principal surface of said substrate has Miller indices (100).
References Cited (Backward Citations)
No citation records indexed.
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