Semiconductor light emitting device and manufacturing method therefor
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United States of America Patent
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Dec 16, 2008
Grant Date -
Jan 11, 2007
app pub date -
Jun 30, 2006
filing date -
Jun 30, 2005
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Abstract
A semiconductor light emitting device in the present invention is formed by laminating an epitaxial layer 30 including an AlGaInP active layer and a second wafer 23 which transmits light derived from the active layer. The crystal axes of the epitaxial layer 30 and the second wafer 23 are generally aligned with each other and are in the range of -15.degree. to +15.degree. with respect to a lateral face {100} of the second wafer 23. This semiconductor light emitting device, which is a joining type with high external emission efficiency, allows uniform wafer bonding to be achieved over the entire wafer face with ease and with a high yield without causing bonding failure and wafer cracks.
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