Semiconductor device and method for producing light and laser emission

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United States of America Patent

PATENT NO 8948226
APP PUB NO 20140050241A1
SERIAL NO

13958522

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Abstract

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A method for producing light emission, including the following steps: providing a transistor structure that includes a semiconductor base region disposed between a semiconductor emitter region and a semiconductor collector region; providing a cascade region between the base region and the collector region, the cascade region having a plurality of sequences of quantum size regions, the quantum size regions of the sequences varying, in the direction toward the collector region, from a relatively higher energy state to a relatively lower energy state; providing emitter, base and collector electrodes respectively coupled with the emitter, base, and collector regions; and applying electrical signals with respect to the emitter, base, and collector electrodes to cause and control light emission from the cascade region.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISURBANA, IL1133

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dallesasse, John Geneva, US 39 551
Feng, Milton Champaign, US 52 714

Cited Art Landscape

Patent Info (Count) # Cites Year
 
LUCENT TECHNOLOGIES INC. (1)
* 6055254 Quantum cascade light emitter with pre-biased internal electronic potential 10 1998
 
THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS (12)
2005/0040,432 Light emitting device and method 28 2003
7091082 Semiconductor method and device 30 2004
7286583 Semiconductor laser devices and methods 28 2005
7354780 Semiconductor light emitting devices and methods 25 2005
7535034 PNP light emitting transistor and method 25 2006
* 2007/0201,523 PNP light emitting transistor and method 10 2006
2008/0240,173 Method for controlling operation of light emitting transistors and laser transistors 20 2007
7693195 Semiconductor light emitting devices and methods 8 2008
2009/0134,939 Transistor device and method 18 2008
* 2010/0034,228 Light emitting and lasing semiconductor devices and methods 20 2008
2010/0202,483 Two terminal light emitting and lasing devices and methods 13 2010
2010/0202,484 Light emitting and lasing semiconductor devices and methods 13 2010
* Cited By Examiner

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