发明名称 |
SEMICONDUCTOR LIGHT EMITTING DEVICE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor light emitting device which can improve light extraction efficiency from a desired light extraction surface. <P>SOLUTION: An anode electrode 5 located on the opposite side to a desired light extraction surface against a light emitting layer 3 is comprised of a first transparent conductive film 51 formed on a p-type semiconductor layer 4; a second transparent conductive film 52 formed on the first transparent conductive film 51; a plurality of multilayer reflection film layers 53 which are formed on the second transparent conductive film 52, and reflect a light radiated from the light emitting layer 3; a metal reflecting film 54 made of a metallic material which is formed in a manner that it may cover a region nor covered by the multilayer reflecting film layers 53 and the multilayer reflecting film layers 53 in the second transparent conductive film 52, and which has a high reflection factor to a light from the light emitting layer 3; a barrier metal film 55 formed on the metal reflecting film 54; and an external connection metal film 56 made of a metallic material which is formed on the barrier metal film 55. <P>COPYRIGHT: (C)2008,JPO&INPIT |
申请公布号 |
JP2007258276(A) |
申请公布日期 |
2007.10.04 |
申请号 |
JP20060077721 |
申请日期 |
2006.03.20 |
申请人 |
MATSUSHITA ELECTRIC WORKS LTD;UNIV OF TSUKUBA |
发明人 |
YASUDA MASAHARU;TAKAKURA NOBUYUKI;CHICHIBU SHIGEHIDE |
分类号 |
H01L33/32;H01L33/42;H01L33/46;H01L33/60 |
主分类号 |
H01L33/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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