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EP0618624A2
Expired / Lapsed
EP
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Light emitting device and method of manufacturing the same
Assignee: Canon Inc
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Filing: 1994-03-28
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Granted: —
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Expires: 2014-03-28
Abstract
Abstract A light emitting device comprises a luminous region comprising a luminous porous material comprising a crystalline semiconductor and a non-porous region adjacent to the luminous region, wherein a conductive type between both the regions is different at an interface between the luminous region and the non-porous region and the crystal structure between both the regions is continuous. <IMAGE>
Inventors
- 👤 Hideya C/O Canon Kabushiki Kaisha Kumomi
- 👤 Takao C/O Canon Kabushiki Kaisha Yonehara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 15:50
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/83; H10H20/832; H10H20/81; H10H20/822; H10H20/826; H10H20/8264
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
57 words
A light emitting device comprising a luminous region comprising a luminous porous material comprising a crystalline semiconductor and a non-porous region adjacent to the luminous region, wherein a conductive type between both the regions is different at an interface between the luminous region and the non-porous region and the crystal structure between both the regions is continuous.
Claim 2
Dependent Claim
37 words
A light emitting device according to claim 1, wherein a low resistance region having the same conductive type as that of the luminous region is further adjacent to the luminous region with a crystal structure being continuous.
Claim 3
Dependent Claim
27 words
A light emitting device according to claim 1, wherein the luminous region comprises a porous region comprising plural porous layers which are different in composition and structure.
Claim 4
Dependent Claim
24 words
A light emitting device according to claim 1, wherein the interface between the light emitting region and the non-porous region comprises a non-porous material.
Claim 5
Dependent Claim
23 words
A light emitting device according to claim 1, wherein the interface between the luminous region and the non-porous region comprises a porous material.
Claim 6
Dependent Claim
19 words
A light emitting device according to any one of claims 1 to 5, wherein the non-porous material is monocrystalline.
Claim 7
Dependent Claim
23 words
A light emitting device according to any one of claims 1 to 6, wherein a heterogeneous material is formed on the porous material.
Claim 8
Independent Claim
68 words
A method of manufacturing a light emitting device comprising the steps of: forming a member having a non-porous crystal region and a porous crystal region having a conductive type different from that of the non-porous crystal region, so as to continue a crystal structure of the porous crystal region and a crystal structure of the non-porous crystal region; and forming a luminous region in the porous crystal region.
Claim 9
Independent Claim
73 words
A method of manufacturing a light emitting device comprising the steps of: forming a member having a non-porous crystal region and a porous crystal region, so as to continue a crystal structure of the porous crystal region and a crystal structure of the non-porous crystal region; making a conductive type of the porous crystal region different from that of the non-porous crystal region; and forming a luminous region in the porous crystal region.
Claim 10
Dependent Claim
27 words
A method of manufacturing a light emitting device according to claim 8, wherein the porous region is formed by anodizing a crystal region formed by epitaxial growth.
References Cited (Backward Citations)
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