Referenced Items are not available for this document.
Image sensors in thin film on ASIC (TFA) technology are composed of amorphous silicon (a-Si:H) thin-film detectors on top of crystalline ASIC's. With regard to advanced imaging systems, TFA provides enhanced performance and more flexibility than conventional technologies. Extensive on-chip signal processing is feasible, as well as small pixels for high-resolution imagers. Several prototypes of TFA sensors have been developed, optimized for considerably different applications. This paper focuses on a TFA sensor for automotive vision systems that allows each pixel to adapt its individual sensitivity to the local illumination intensity. By this means, a dynamic range of 120-dB minimum along with high local contrast is achieved. The recent second prototype array consists of 368×256 pixels with an area of 40×38 μm2 each. The ASIC's were fabricated in a 0.7-μm CMOS technology, whereupon the a-Si:H thin film was deposited in a plasma-enhanced chemical vapor deposition cluster system
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:34
,
Issue:
5
)
Date of Publication: May 1999
- Page(s):
- 704 - 711
- ISSN :
- 0018-9200
- INSPEC Accession Number:
- 6248069
- Digital Object Identifier :
- 10.1109/4.760382
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- May 1999
- Sponsored by :
- IEEE Solid-State Circuits Society
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