Patent ID: 8536597
Filing Date: 2013-09-17
Classification: H01L

Abstract:
1. A light emitting diode chip, comprising: an electrically conductive substrate; a reflecting layer disposed on the substrate; a semiconductor structure formed on the reflecting layer, and the semiconductor structure comprising a P-type semiconductor layer formed on the reflecting layer, a light-emitting layer formed on the P-type semiconductor layer, and an N-type semiconductor layer formed on the light-emitting layer; an electrode disposed on the semiconductor structure, and a current diffusing region defined in the semiconductor structure and around the electrode; and a plurality of slots extending through the semiconductor structure, surrounding the electrode and located outside the current diffusing region; wherein the semiconductor structure has a periphery part thereof outside the slots forming a light transition portion surrounding the slots; wherein the slots are spaced from each other; wherein the slots extend along an imaginary circle surrounding the electrode and having the electrode located at a center of the imaginary circle; and wherein the slots are spaced from each other with a bridge defined between every two adjacent slots, the bridges being located on the same imaginary circle along which the slots extend.