发明申请
- 专利标题： OPTICAL DEVICE AND MANUFACTURING METHOD THEREFOR
- 专利标题（中）： 光学器件及其制造方法
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申请号： US14601859申请日： 2015-01-21
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公开(公告)号： US20150214432A1公开(公告)日： 2015-07-30
- 发明人: Naotoshi Kirihara , Chikara Aikawa , Yusaku Ito , Taro Arakawa , Yang Tzuchun
- 申请人： DISCO CORPORATION
- 优先权： JP2014-012519 20140127
- 主分类号： H01L33/24
- IPC分类号： H01L33/24 ; H01L33/00
摘要：
An optical device including a substrate and a light emitting layer formed on the front surface of the substrate. The back surface of the substrate is formed with a concave portion like a crater. The concave portion is formed by applying a laser beam having an absorption wavelength to an optical device wafer. In the optical device, light emitted from the light emitting layer strikes the inner surface of the concave portion and is next irregularly reflected from the inner surface of the concave portion.
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