US 7,573,076 B2
Vertical gallium-nitride based light emitting diode
Doo Go Baik, Suwon (Korea, Republic of); Bang Won Oh, Seongnam (Korea, Republic of); Seok Beom Choi, Daejeon (Korea, Republic of); and Su Yeol Lee, Seongnam (Korea, Republic of)
Assigned to Samsung Electro-Mechanics Co., Ltd., Gyunggi-do (Korea, Republic of)
Filed on Dec. 06, 2006, as Appl. No. 11/634,112.
Claims priority of application No. 10-2005-0117958 (KR), filed on Dec. 06, 2005.
Prior Publication US 2007/0126022 A1, Jun. 07, 2007
Int. Cl. H01L 33/00 (2006.01)
U.S. Cl. 257—103  [257/80; 257/81; 438/22; 438/69] 5 Claims
OG exemplary drawing
 
1. A vertical gallium-nitride (GaN)-based light emitting diode (LED) comprising:
a support layer;
a p-electrode formed on the support layer;
a p-type GaN layer formed on the p-electrode;
an active layer formed on the p-type GaN layer;
an n-type GaN layer for an n-type electrode contact, formed on the active layer;
an etch stop layer formed on the n-type GaN layer to expose a portion of the n-type GaN layer; and
an n-electrode formed on the n-type GaN layer exposed by the etch stop layer.