Patent ID: 11908973
Assignee: XIAMEN SAN'AN OPTOELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A light-emitting device, comprising:
a first type semiconductor layer;
a second type semiconductor layer;
an active layer disposed between said first type semiconductor layer and said second type semiconductor layer;
a current blocking layer that is disposed on said first type semiconductor layer to expose a portion of said first type semiconductor layer, said current blocking layer including a first strip portion; and
a first electrode that is disposed on said current blocking layer and that includes a first electrode pad, a first electrode end portion distal from said first electrode pad, and a first electrode extension portion extending between said first electrode pad and said first electrode end portion,
wherein said first strip portion of said current blocking layer is located beneath said first electrode extension portion and has a widened section having a width that gradually increases in a direction away from said first electrode pad,
wherein said first strip portion of said current blocking layer further includes a pad-proximal section that is connected to said widened section and that is more proximal to said first electrode pad than said widened section, said pad-proximal section having a width W3 larger than a width W1 of a part of said first electrode extension portion positioned there above, said widened section having a width W4 lamer than a width W2 of a part of said first electrode extension portion positioned there above, a first width difference between the width W3 and the width W1 being less than a second width difference between the width W4 and the width W2, and
wherein said second type semiconductor layer has a portion exposed from said first type semiconductor layer and said active layer, said light-emitting device further including a transparent conductive layer that is disposed on said exposed portion of said first type semiconductor layer and that is partially disposed between said current blocking layer and said first electrode; and a second electrode disposed on said exposed portion of said second type semiconductor layer.