EP 1042816 A1 20001011 - BROAD-BAND QUANTUM WELL INFRARED PHOTODETECTORS
Title (en)
BROAD-BAND QUANTUM WELL INFRARED PHOTODETECTORS
Title (de)
BREITBANDIGE INFRAROT FOTODETEKTOREN MIT QUANTUMWELL
Title (fr)
PHOTODETECTEURS INFRAROUGE LARGE BANDE A PUITS QUANTIQUE
Publication
Application
Priority
- US 9825047 W 19981123
- US 6680197 P 19971126
Abstract (en)
[origin: WO9927583A1] A quantum well (200) can be designed to detect light of a particular wavelength by tailoring the potential depth and width of the well (202). The design produces two energy states (210, 208) in the well (202) separated by the desired photon energy. The GaAs/AlxGa1-xAs material system allows the quantum well shape to be varied over a range wide enough to enable light detection at wavelengths longer than approximately 6 mm. Hence, large bandgap materials such as GaAs/AlxGa1-xAs material has made fabrication of a large focal plane arrays tuned to detect light at wavelengths from 6 to 25 mm possible.
IPC 1-7
IPC 8 full level
G01J 1/44 (2006.01); G01J 5/48 (2006.01); H01L 27/14 (2006.01); H01L 27/146 (2006.01); H01L 31/0264 (2006.01); H01L 31/0352 (2006.01); H01L 31/103 (2006.01)
CPC (source: EP)
B82Y 20/00 (2013.01); H01L 27/14649 (2013.01); H01L 31/035236 (2013.01); H01L 31/1035 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9927583 A1 19990603; AU 1535499 A 19990615; CA 2311629 A1 19990603; CA 2311629 C 20060214; EP 1042816 A1 20001011; EP 1042816 A4 20010131; JP 2001524757 A 20011204; JP 3538143 B2 20040614
DOCDB simple family (application)
US 9825047 W 19981123; AU 1535499 A 19981123; CA 2311629 A 19981123; EP 98959585 A 19981123; JP 2000522626 A 19981123