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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT
Document Type and Number:
Japanese Patent JP2010263046
Kind Code:
A
Abstract:

To provide a method for manufacturing a light emitting element which can form an electrode with good wire bondability.

In the method for manufacturing the light emitting element, at least, a layer containing AuBe, a Ti layer, and an Au layer are formed as an ohmic electrode material in a surface of a p-type semiconductor crystal of a semiconductor crystal in which at least, an n-type semiconductor crystal, a light emitting layer, and the p-type semiconductor crystal which contains Ga or In and whose carrier concentration is 1×1017/cm3or more and 1×1019/cm3or less are formed in this order, and heat treatment is then performed to form an ohmic electrode, and the semiconductor crystal is then diced. After the Au layer is formed and before the heat treatment is performed, cleaning is performed by first sulfuric acid/hydrogen peroxide mixture cleaning solution, and after the heat treatment is performed, cleaning is performed by second sulfuric acid/hydrogen peroxide mixture cleaning solution.

COPYRIGHT: (C)2011,JPO&INPIT


Inventors:
IKEDA HITOSHI
SUZUKI KINGO
Application Number:
JP2009112199A
Publication Date:
November 18, 2010
Filing Date:
May 01, 2009
Export Citation:
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Assignee:
SHINETSU HANDOTAI KK
International Classes:
H01L33/40
Attorney, Agent or Firm:
Mikio Yoshimiya