Title:
METHOD OF ADJUSTING LIGHT DISTRIBUTION CHARACTERISTICS OF LIGHT EMITTING ELEMENT, AND METHOD OF MANUFACTURING LIGHT EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/198395
Kind Code:
A1
Abstract:
Provided is a method of adjusting the light distribution characteristics of a light emitting element, the method adjusting the light distribution characteristics during manufacture of a light emitting element and comprising : forming a light emitting layer and a window layer/support substrate on a starting substrate; removing the starting substrate; forming a first ohmic electrode on a surface of a first semiconductor layer; removing a part of at least the first semiconductor layer and an active layer; forming a second ohmic electrode on a second semiconductor layer or the window layer/support substrate; and forming a recess on a light-extracting surface side of the window layer/support substrate. Desired light distribution characteristics of the light emitting element are set in advance, and, on the basis of the desired light distribution characteristics, at least one of adjustment of the shape of the recess during recess formation and adjustment of a roughened region in a step of roughening the window layer/support substrate is performed to adjust the light distribution characteristics of the light emitting element being manufactured to the desired light distribution characteristics that have been set. Thus, there are provided a method of adjusting the light distribution characteristics of a light emitting element and a method of manufacturing a light emitting element whereby the light distribution characteristics, such as light distribution angle, can be adjusted as desired.
Inventors:
ISHIZAKI JUNYA (JP)
Application Number:
PCT/JP2019/009460
Publication Date:
October 17, 2019
Filing Date:
March 08, 2019
Export Citation:
Assignee:
SHINETSU HANDOTAI KK (JP)
International Classes:
H01L33/22
Foreign References:
| JP2018006657A | 2018-01-11 | |||
| JP2014120550A | 2014-06-30 | |||
| JP2006339294A | 2006-12-14 | |||
| US20150014702A1 | 2015-01-15 |
Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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