Invention Grant
- Patent Title: Polychromatic LED's and related semiconductor devices
- Patent Title (中): 多色LED及相关半导体器件
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Application No.: US12781227Application Date: 2010-05-17
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Publication No.: US08148741B2Publication Date: 2012-04-03
- Inventor: Thomas J. Miller , Michael A. Haase , Xiaoguang Sun
- Applicant: Thomas J. Miller , Michael A. Haase , Xiaoguang Sun
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Kristofor L. Storvick
- Main IPC: H01L33/00
- IPC: H01L33/00
Abstract:
A semiconductor device is provided comprising a first potential well located within a pn junction and a second potential well not located within a pn junction. The potential wells may be quantum wells. The semiconductor device is typically an LED, and may be a white or near-white light LED. The semiconductor device may additionally comprise a third potential well not located within a pn junction. The semiconductor device may additionally comprise absorbing layers surrounding or closely or immediately adjacent to the second or third quantum wells. In addition, graphic display devices and illumination devices comprising the semiconductor device according to the present invention are provided.
Public/Granted literature
- US20100224889A1 Polychromatic LED's and Related Semiconductor Devices Public/Granted day:2010-09-09
Information query
IPC分类:
