LETI/LIR's amorphous silicon uncooled microbolometer development

1998 ◽  
Author(s):  
Jean-Luc Tissot ◽  
Frederic Rothan ◽  
Corrinne Vedel ◽  
Michel Vilain ◽  
Jean-Jacques Yon
Keyword(s):  
Amorphous Silicon ◽  
Uncooled Microbolometer

Study on the Temperature Dependency Effect of Thermal Coefficient of Resistance in Amorphous Silicon for Uncooled Microbolometer Application

MRS Advances ◽  
2019 ◽  
Vol 4 (08) ◽  
pp. 447-455
Author(s):  
Junkyo Jeong ◽  
Byeongjun Jeong ◽  
Jaeseop Oh ◽  
Gawon Lee
Keyword(s):  
Amorphous Silicon ◽  
Joule Heating ◽  
Operating Temperature ◽  
Effect Of Temperature ◽  
Thermal Coefficient ◽  
Temperature Dependency ◽  
Ir Radiation ◽  
Absolute Value ◽  
Uncooled Microbolometer ◽  
Thermal Coefficient Of Resistance

ABSTRACTIn this paper, we studied the temperature dependency effect of thermal coefficient of resistance (TCR) in amorphous silicon (a-Si) on the properties of uncooled microbolometer with a-Si as a resistance layer by simulation. The temperature of the microbolometer rises during the operation mainly due to the heat generated by Joule heating as well as IR radiation. Generally, the TCR of a-Si is treated as a constant for the simplicity but the absolute value of TCR has been reported to decrease as the temperature increases. Therefore, to improve the device characteristics, the effect of temperature dependency of TCR in a-Si should be considered carefully in the range of the operating temperature. The responsivities of microbolometer are simulated according to the width of the resistance layer (W) with TCR as a function of temperature, which shows that the optimal W condition is affected by the TCR value changed by the temperature.

Amorphous-silicon-based uncooled microbolometer IRFPA

1999 ◽  
Author(s):  
Corrinne Vedel ◽  
Jean-Luc Martin ◽  
Jean-Louis Ouvrier-Buffet ◽  
Jean-Luc Tissot ◽  
Michel Vilain ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Uncooled Microbolometer ◽  
Silicon Based

Low-cost amorphous-silicon-based 160x120 uncooled microbolometer 2D array for high-volume applications

2003 ◽  
Author(s):  
Jean-Luc Tissot ◽  
Astrid Astier ◽  
Jean-Pierre Chatard ◽  
Sebastien Tinnes ◽  
Cyrille Trouilleau ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Low Cost ◽  
High Volume ◽  
Uncooled Microbolometer ◽  
Silicon Based ◽  
2D Array

Low-cost amorphous silicon-based 160x120 uncooled microbolometer 2D array for high-volume applications

2004 ◽  
Author(s):  
Cyrille Trouilleau ◽  
Arnaud Crastes ◽  
Jean-Luc Tissot ◽  
Jean-Pierre Chatard ◽  
Jean-Jacques Yon ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Low Cost ◽  
High Volume ◽  
Uncooled Microbolometer ◽  
Silicon Based ◽  
2D Array

Machine learning reveals the complexity of dense amorphous silicon

Nature ◽  
2021 ◽  
Vol 589 (7840) ◽  
pp. 22-23
Author(s):  
Paul F. McMillan
Keyword(s):  
Machine Learning ◽  
Amorphous Silicon
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