Amorphous Silicon Photodiode-Thin Film Transistor Image Sensor with Diode on Top Structure

1997 ◽  
Vol 467 ◽  
Author(s):  
M J Powell ◽  
C Glasse ◽  
I D French ◽  
A R Franklin ◽  
J R Hughes ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistor ◽  
Image Sensor ◽  
Sensor Technology ◽  
Noise Performance ◽  
Silicon Thin Film ◽  
Silicon Photodiode ◽  
Insulating Layer ◽  
X Ray

ABSTRACTWe have developed a new amorphous silicon image sensor technology using a matrix array of amorphous silicon thin film transistors and photodiodes, where the amorphous silicon nip photodiode is fabricated on top of a thick insulating layer, on top of the thin film transistor array. We call this ‘diode on top’ technology or DOTTY. The active diode area can be as high as 93%, compared to 50% for our conventional photodiode-TFT technology. This leads to a higher signal to noise performance, which is important for medical X-ray applications.

Amorphous-silicon thin film transistor with two-step exposure process

2000 ◽  
Author(s):  
Pi-Fu Chen ◽  
Jr-Hong Chen ◽  
Dou-I Chen ◽  
HsixgJu Sung ◽  
June-Wei Hwang ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistor ◽  
Silicon Thin Film ◽  
Exposure Process

Hydrogenation Effect of Amorphous Silicon Thin Film Transistors by Atmospheric Pressure CVD

1993 ◽  
Vol 297 ◽  
Author(s):  
Byung Chul Ahn ◽  
Jeong Hyun Kim ◽  
Dong Gil Kim ◽  
Byeong Yeon Moon ◽  
Kwang Nam Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Atmospheric Pressure ◽  
Thin Film Transistors ◽  
Field Effect ◽  
Low Cost ◽  
Thin Film Transistor ◽  
Field Effect Mobility ◽  
Silicon Thin Film ◽  
Hydrogenation Effect

The hydrogenation effect was studied in the fabrication of amorphous silicon thin film transistor using APCVD technique. The inverse staggered type a-Si TFTs were fabricated with the deposited a-Si and SiO2 films by the atmospheric pressure (AP) CVD. The field effect mobility of the fabricated a-Si TFT is 0.79 cm2/Vs and threshold voltage is 5.4V after post hydrogenation. These results can be applied to make low cost a-Si TFT array using an in-line APCVD system.

A Center-Offset Polycrystalline-Silicon Thin-Film Transistor With ${\rm n}^{+}$ Amorphous-Silicon Contacts

2009 ◽  
Vol 30 (1) ◽  
pp. 36-38 ◽  
Author(s):  
J. H. Oh ◽  
D. H. Kang ◽  
W. H. Park ◽  
J. Jang ◽  
Y. J. Chang ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Polycrystalline Silicon ◽  
Thin Film Transistor ◽  
Silicon Thin Film

Study on Light Induced Leakage Current Related to Amorphous Silicon TFT Design

2007 ◽  
Vol 124-126 ◽  
pp. 259-262
Author(s):  
Jae Hong Jeon ◽  
Kang Woong Lee
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Leakage Current ◽  
Thin Film Transistor ◽  
Silicon Layer ◽  
Gate Electrode ◽  
Silicon Thin Film ◽  
Pattern Design ◽  
Conventional Design ◽  
The One

We investigated the effect of amorphous silicon pattern design regarding to light induced leakage current in amorphous silicon thin film transistor. In addition to conventional design, where amorphous silicon layer is protruding outside the gate electrode, we designed and fabricated amorphous silicon thin film transistors in another two types of bottom gated structure. The one is that the amorphous silicon layer is located completely inside the gate electrode and the other is that the amorphous silicon layer is protruding outside the gate electrode but covered completely by the source and drain electrode. Measurement of the light induced leakage current caused by backlight revealed that the design where the amorphous silicon is located inside the gate electrode was the most effective however the last design was also effective in reducing the leakage current about one order lower than that of the conventional design.

Fabrication of amorphous silicon thin-film transistor by micro imprint lithography

2006 ◽  
Vol 352 (9-20) ◽  
pp. 1704-1707 ◽  
Author(s):  
Byoung-Kwon Choo ◽  
Jung-Su Choi ◽  
Se-Whan Kim ◽  
Kyu-Chang Park ◽  
Jin Jang
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistor ◽  
Imprint Lithography ◽  
Silicon Thin Film

Amorphous Silicon Thin-Film Transistor Backplanes Deposited at 200 $^{\circ}{\hbox{C}}$ on Clear Plastic for Lamination to Electrophoretic Displays

2007 ◽  
Vol 3 (3) ◽  
pp. 304-308 ◽  
Author(s):  
Alex Z. Kattamis ◽  
I-Chun Cheng ◽  
Ke Long ◽  
Bahman Hekmatshoar ◽  
Kunigunde H. Cherenack ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistor ◽  
Silicon Thin Film ◽  
Clear Plastic

Optical Pixel Sensor of Hydrogenated Amorphous Silicon Thin-Film Transistor Free of Variations in Ambient Illumination

2016 ◽  
Vol 51 (11) ◽  
pp. 2777-2785 ◽  
Author(s):  
Chih-Lung Lin ◽  
Chia-En Wu ◽  
Po-Syun Chen ◽  
Po-Cheng Lai ◽  
Jian-Shen Yu ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistor ◽  
Hydrogenated Amorphous Silicon ◽  
Ambient Illumination ◽  
Silicon Thin Film ◽  
Hydrogenated Amorphous
Sign in / Sign up

Export Citation Format

Share Document