Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1978-08-04
1980-08-12
Tupman, W. C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
29572, 357 30, H01J 3912, H01L 2502
Patent
active
042174902
ABSTRACT:
This invention relates to a method for constructing multispectral infrared detectors formed by three HgCdTe photovoltaic elements disposed in the form of a sandwich. According to the invention, each photovoltaic element is constructed by preparing a suitable slice of HgCdTe, by polishing the faces of said slice, by chemically attacking the slice, by heating the slice in the presence of mercury inside a test tube within a furnace having a suitable temperature profile, by constructing the ground contact by catalytic deposition of gold, by cementing the slice onto a support, by depositing a layer of photoresist on the slice, by masking the photoresist with the exception of a small exposure region, by eliminating the photoresist in the exposure region, by grafting the slice and by depositing the upper contact and an entire flecting layer. The individual elements are finally assembled and electrically connected to output terminals.
REFERENCES:
patent: 4104789 (1978-08-01), Robillard
patent: 4132999 (1979-02-01), Maille
patent: 4157926 (1979-06-01), Schoolar
Fiorito Giancarlo
Gasparrini Guido
Svelto Francesco
Cise - Centro Informazioni Studi Esperienze S.p.A.
Flocks Karl W.
Tupman W. C.
LandOfFree
Method for constructing multispectral infrared detectors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for constructing multispectral infrared detectors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for constructing multispectral infrared detectors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2183859