US 9,812,616 B2
Light-emitting diode
Chi Hyun In, Ansan-si (KR); Sang Min Kim, Ansan-si (KR); Dae Seok Park, Ansan-si (KR); Eun Ji Park, Ansan-si (KR); and Hong Suk Cho, Ansan-si (KR)
Assigned to Seoul Viosys Co., Ltd., Ansan-si (KR)
Appl. No. 15/329,993
Filed by SEOUL VIOSYS CO., LTD., Ansan-si (KR)
PCT Filed Jul. 30, 2015, PCT No. PCT/KR2015/008010
§ 371(c)(1), (2) Date Jan. 27, 2017,
PCT Pub. No. WO2016/018109, PCT Pub. Date Feb. 4, 2016.
Claims priority of application No. 10-2014-0098641 (KR), filed on Jul. 31, 2014; and application No. 10-2014-0131604 (KR), filed on Sep. 30, 2014.
Prior Publication US 2017/0263821 A1, Sep. 14, 2017
Int. Cl. H01L 27/15 (2006.01); H01L 33/46 (2010.01); H01L 33/40 (2010.01); H01L 33/62 (2010.01); H01L 33/14 (2010.01)
CPC H01L 33/46 (2013.01) [H01L 33/14 (2013.01); H01L 33/405 (2013.01); H01L 33/62 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A light emitting diode comprising:
a substrate;
a light emitting cell disposed on the substrate and comprising a lower semiconductor layer, an upper semiconductor layer disposed in one region of the lower semiconductor layer, and an active layer interposed between the lower semiconductor layer and the upper semiconductor layer
a first electrode disposed on the upper semiconductor layer;
a second electrode disposed on the lower semiconductor layer;
a first insulation layer comprising a first open region partially exposing the first electrode;
a second insulation layer disposed on the first insulation layer; and
a first bump forming ohmic contact with the first electrode through the first open region,
wherein the first bump comprises a first concave portion and a first convex portion that are formed on an upper surface of the first bump;
wherein the first bump comprises a first region having a top surface including a bottom surface of the first concave portion and a second region having a top surface including an upper surface of the first convex portion; and
wherein at least part of the first region is disposed on the first open region and at least part of the second region is disposed on the second insulation layer.