Image sensor comprising thin film transistor optical sensor...

Details Image sensor comprising thin film transistor optical sensor... Image sensor comprising thin film transistor optical sensor...

2005-10-04

2005-10-04

Huynh, Andy (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Non-single crystal, or recrystallized, semiconductor...

Amorphous semiconductor material

C257S052000, C257S072000, C257S294000, C257S451000, C257S749000

Reexamination Certificate

active

06952022

ABSTRACT:
The present invention relates to an image sensor comprising an amorphous silicon thin-film transistor optical sensor which functions as an image sensor used for an X-ray photography device, a fingerprint recognition apparatus, a scanner, etc., and a method of manufacturing the image sensor. Since the thin-film transistor optical sensor according to the present invention has a high-resistance silicon region by disposing an offset region in a channel region, a dark leakage current of the optical sensor remains in a low level even under a high voltage. Therefore, it is possible to apply a high voltage to the thin-film transistor optical sensor according to the present invention so that the image senor can be sensitive to a weak light. In addition, since the storage capacitance in the image sensor is formed in a double structure, the image sensor has a high value of capacitance. Furthermore, since a lower common electrode is electrically connected to an upper common electrode, the image sensor has a stable structure.

REFERENCES:
patent: 6445003 (2002-09-01), Chang et al.
patent: 6570197 (2003-05-01), Joo
Korean Patent Abstract (Korean Publication No. 1020010035260, publication date May 7, 2001).
Korean Patent Abstract (Korean Publication No. 1020010088443, publication date Sep. 26, 2001).

Affiliated with

Also associated with

Rating

Image sensor comprising thin film transistor optical sensor... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image sensor comprising thin film transistor optical sensor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image sensor comprising thin film transistor optical sensor... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3476833