Invention Grant
- Patent Title: Series connected segmented LED
- Patent Title (中): 串联连接分段LED
-
Application No.: US12208502Application Date: 2008-09-11
-
Publication No.: US07939839B2Publication Date: 2011-05-10
- Inventor: Ghulam Hasnain
- Applicant: Ghulam Hasnain
- Applicant Address: US CA Livermore
- Assignee: Bridgelux, Inc.
- Current Assignee: Bridgelux, Inc.
- Current Assignee Address: US CA Livermore
- Agent Calvin B. Ward
- Main IPC: H01L33/00
- IPC: H01L33/00

Abstract:
A light source and method for making the same are disclosed. The light source includes a substrate, and a light emitting structure that is divided into segments. The light emitting structure includes a first layer of semiconductor material of a first conductivity type deposited on the substrate, an active layer overlying the first layer, and a second layer of semiconductor material of an opposite conductivity type from the first conductivity type overlying the active layer. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first layer in the first segment to the second layer in the second segment. A power contact is electrically connected to the second layer in the first segment, and a second power contact electrically connected to the first layer in the second segment.
Public/Granted literature
- US20100059768A1 Series Connected Segmented LED Public/Granted day:2010-03-11
Information query
IPC分类: