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Title:
METHOD OF MANUFACTURING NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT, AND NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT
Document Type and Number:
Japanese Patent JP2012138452
Kind Code:
A
Abstract:

To provide a method of manufacturing a nitride semiconductor light-emitting element and a nitride semiconductor light-emitting element capable of suppressing deterioration in contact properties of an n-side electrode caused by heating to suppress voltage reduction even when a high-reflectance Al layer is used for the n-side electrode and used for a contact layer with an n-type conductive layer.

A nitride semiconductor light-emitting element has: an n-type conductive substrate formed of a nitride semiconductor material; an n-type conductive layer, a light-emitting layer, and a p-type conductive layer formed on the n-type conductive substrate; a p-side electrode provided on a p-type semiconductor layer; and an n-side electrode provided on the n-type conductive substrate opposite to the p-type conductive layer. When the n-side electrode is provided on the n-type conductive substrate, first of all, the n-type conductive substrate is irradiated with plasma in an atmosphere of a chlorine-based compound gas containing Si to form an ion irradiation layer on the n-type conductive substrate (an irradiation step, a step S52). Next, an electrode including an Al electrode and a bonding electrode is formed on the ion irradiation layer to obtain the n-side electrode (an electrode formation step, a step S60).


Inventors:
KAJIMA TAKAYUKI
Application Number:
JP2010289377A
Publication Date:
July 19, 2012
Filing Date:
December 27, 2010
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
H01L33/32
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii