Acoustic charge transport imager

Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Amorphous semiconductor material

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

257245, 257438, H01L 2978, H01L 2714, H01L 2966

Patent

active

051628856

ABSTRACT:
An Acoustic Charge Transport Imager, suitable for use as a High Definition Television (HDTV) camera element, is disclosed in which an array of amorphous hydrogenated silicon based avalanche photodiodes are combined with acoustic charge transport channels in a GaAs substrate, to achieve very high speed read out of photogenerated charge. High speed read out allows the fabrication of detector arrays large enough to meet the resolution requirements of HDTV while ensuring operation within the timing constraints of the HDTV frame rate.

REFERENCES:
patent: 4028565 (1977-06-01), Davis
patent: 4084192 (1978-04-01), Defranould et al.
patent: 4208548 (1977-06-01), Scott
patent: 4291390 (1981-09-01), Stern et al.
patent: 4633285 (1986-12-01), Hunsinger et al.
patent: 4799244 (1989-01-01), Mikoshiba et al.
patent: 4906894 (1990-03-01), Miyawaki et al.
Unnai et al., "Newly developed high-sensitivity HDTV camera tube", 1989 Hitachi Review 38:121-126.
Hoskins et al., "High Speed GaAs acoustic charge transport multiplexer", 1989, Optical Sensors and Electronic Photography 1071:99-106.
Merritt et al., "Heterojunction Acoustic-charge Transport Fixed-Tap Transversal Filter", 1990, IEEE Electron Device Letters 11:107-109.
Merritt et al., "A 3.35 Microsecond HACT Transversal Filter", 1989 IEEE 1989 Ultrasonic Symposium Proceedings pp. 213-216.
Tanski et al., "Heterojunction Acoutic-charge Transport Devices on GaAs", 1988, Applied Physics Letters 52(1):18-20.
Miller et al., "Modeled and Measured ACT Based Convolver Performance", 1987 IEEE 1987 Ultrasonic Symposium Proceedings pp. 25-29.
Okano et al., "Harpo-HDTV High Sensitivity, Hand-Held Camera", 1989 NAB Engineering Conference Proceedings pp. 331-337.
Tanioka et al., "An Avalanche-Mode Amorphous Selenium Photoconductive Layer for Use as a Camera Tube Target", 1987 IEEE Electron Device Letters 8:392-394.
Harada et al., "A High-Resolution Staggered-Configuration CCD Imager Overlaid with an a-Si:H Photoconductive Layer", 1985 IEEE Transactions on Electron Devices 32:1499-1504.
Chikamura et al., "A 1/2 inch CCD Image Sensor Overlaid with a Hydrogenated Amorphous Silicon", 1985 IEEE Transaction on Electron Devices 32:1495-1498.
Ishikoa et al., "Image Pickup Tubes", 1984, Semiconductors and Semi Metals 21D:75-87.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Acoustic charge transport imager does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic charge transport imager, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic charge transport imager will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2297981

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.