Photon-Quantum-Noise-Limited Pixel Architecture in Amorphous-Silicon Technology for Large-Area Digital Imaging Applications

2012 ◽  
Vol 59 (11) ◽  
pp. 3017-3023
Author(s):  
Mohammad Y. Yazdandoost ◽  
Karim S. Karim
Keyword(s):  
Amorphous Silicon ◽  
Digital Imaging ◽  
Quantum Noise ◽  
Large Area ◽  
Silicon Technology

AN ARCHITECTURE FOR FULLY INTEGRATED LARGE SCALE NEURAL NETWORKS

1993 ◽  
Vol 04 (04) ◽  
pp. 327-332
Author(s):  
M. D. BINNS ◽  
F. J. CLOUGH ◽  
S. C. J. GARTH
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Amorphous Silicon ◽  
Large Scale ◽  
Crystalline Silicon ◽  
Interface Problem ◽  
Large Area ◽  
Fully Integrated ◽  
Silicon Technology ◽  
External Light Source

To apply neural networks to many engineering applications, large networks will be required. Such networks are difficult to build using standard crystalline silicon technology due to limitations in both the fabrication and packaging processes. An architecture is proposed where amorphous silicon photoresistors are used to store the synaptic weights. A single plate of amorphous silicon is able to contain up to 100 million photoresistors, exploiting readily available fabrication technology. Using an external light source, each photoresistor can be individually adjusted allowing them to be configured as programmable fixed-value resistors. The processing compatibility of polysilicon and amorphous silicon allows the same glass substrate to be used for large-area integration of the photosensors, the analogue neural network and the neurons. The integration of the photosensors and the rest of the network may be used to alleviate the interface problem at the inputs resulting in a design with a very simple architecture that is both elegant and simple to fabricate. This paper describes such a design in which amorphous silicon technology is applied to neural network hardware.

Photon counting pixel and array in amorphous silicon technology for large area digital medical imaging applications

2010 ◽  
Author(s):  
Mohammad Y. Yazdandoost ◽  
Kyung W. Shin ◽  
Nader Safavian ◽  
Farhad Taghibakhsh ◽  
Karim S. Karim
Keyword(s):  
Medical Imaging ◽  
Amorphous Silicon ◽  
Photon Counting ◽  
Large Area ◽  
Silicon Technology

Amorphous silicon technology for large area digital X-ray and optical imaging

2002 ◽  
Vol 42 (4-5) ◽  
pp. 735-746 ◽  
Author(s):  
Arokia Nathan ◽  
Byung-kyu Park ◽  
Qinghua Ma ◽  
Andrei Sazonov ◽  
John A. Rowlands
Keyword(s):  
Optical Imaging ◽  
Amorphous Silicon ◽  
Large Area ◽  
X Ray ◽  
Silicon Technology

Chest Radiography With a Large-Area Detector Based on Cesium-Iodide/Amorphous-Silicon Technology

2000 ◽  
Vol 15 (3) ◽  
pp. 157-161 ◽  
Author(s):  
Michael Strotzer ◽  
Markus V??lk ◽  
Maximilian Reiser ◽  
Markus Lenhart ◽  
Christoph Manke ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Chest Radiography ◽  
Cesium Iodide ◽  
Large Area ◽  
Silicon Technology ◽  
Area Detector ◽  
Large Area Detector
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