Title:
LIGHT-EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2014/192226
Kind Code:
A1
Abstract:
The present invention is a light-emitting element having: a support substrate; a reflection layer section; and a light-emitting unit formed from a first-conductivity-type first semiconductor layer, an active layer, and a second-conductivity-type second semiconductor layer; and having a first surface which is a light-extraction surface on the first semiconductor layer side of the light-emitting unit, the back-surface side of the support substrate being a second surface; wherein the light-emitting element is characterized in that the light-emitting unit has a third surface provided parallel to the first surface and on a lower layer than the active layer, and a fourth surface inclined connecting the third surface and the first surface, and in that the light-emitting unit has: an insulating dielectric layer that covers part of the first surface, third surface, and fourth surface; a first electrode section in which a fine-line-shaped surface electrode also formed on the first surface and a bonding pad also formed on the third surface are electrically connected; and a second electrode section formed on the second surface. Using this invention, multiple reflection within the light-emitting element and light absorption in the active layer can be minimized, and light-emission efficiency can be increased.
Inventors:
ISHIZAKI JUNYA (JP)
Application Number:
PCT/JP2014/002398
Publication Date:
December 04, 2014
Filing Date:
May 02, 2014
Export Citation:
Assignee:
SHINETSU HANDOTAI KK (JP)
International Classes:
H01L33/24; H01L33/30; H01L33/38
Foreign References:
| JP2003142727A | 2003-05-16 | |||
| JP2011124580A | 2011-06-23 | |||
| JP2012129357A | 2012-07-05 | |||
| JP2012209529A | 2012-10-25 |
Attorney, Agent or Firm:
YOSHIMIYA, Mikio (JP)
Good Miya Mikio (JP)
Good Miya Mikio (JP)
Download PDF: