The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2022
Filed:
Aug. 05, 2020
Epistar Corporation, Hsinchu, TW;
Li-Ming Chang, Hsinchu, TW;
Tzung-Shiun Yeh, Hsinchu, TW;
Chien-Fu Shen, Hsinchu, TW;
Yu-Rui Lin, Hsinchu, TW;
Chen Ou, Hsinchu, TW;
Hsin-Ying Wang, Hsinchu, TW;
Hui-Chun Yeh, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device includes: a substrate, including a first edge, a second edge, a third edge and a fourth edge; a semiconductor stack formed on the substrate, comprising a first semiconductor layer, a second semiconductor layer and an active layer; a first electrode formed on the first semiconductor layer, comprising a first pad electrode; and a second electrode formed on the second semiconductor layer, comprising a second pad electrode and a second finger electrode; wherein in a top view, the first pad electrode is adjacent to a corner of the substrate that is intersected by the first and the second edges; the second finger electrode is not parallel with the third and the first edges; and a distance between the second finger electrode and the first edge increases along a direction from an end of the second finger electrode that connects the second pad electrode toward the second edge.