Solid state image sensor and its fabrication

Details Solid state image sensor and its fabrication Solid state image sensor and its fabrication

1998-11-16

2000-09-05

Ngo, Ngan V.

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

Field effect device

Charge transfer device

257221, 257224, 257243, 257249, 257435, H01L 29768, H01L 27148, H01L 310232

Patent

active

061147184

ABSTRACT:
A dipping in potential well due to direct contact between transfer electrodes and metal wiring causes a drop in transfer efficiency through a CCD register. In order to eliminate or at least reduce the potential dipping, an N.sup.- -type impurity layer that functions as a CCD channel is formed with N.sup.-- -type impurity regions that have impurity concentration lower than that of the N.sup.- -type impurity layer. The N.sup.- -type impurity regions are located below transfer electrodes in alignment with contact apertures.

REFERENCES:
patent: 5182622 (1993-01-01), Iizuka et al.
patent: 5194751 (1993-03-01), Yonemoto et al.
patent: 5216489 (1993-06-01), Yonemoto et al.
patent: 5250825 (1993-10-01), Negishi et al.
patent: 5286990 (1994-02-01), Hynecek
patent: 5434437 (1995-07-01), Itakura et al.
patent: 5491512 (1996-02-01), Itakura et al.
patent: 5668390 (1997-09-01), Morimoto
patent: 5723884 (1998-03-01), Kim
T. Nobusada et al., "Frame Interline Transfer CCD Sensor for HDTV Camera", 1989 IEEE International Solid-State Circuits Conference, Feb. 15, 1989, pp. 88-89.
K. Yonemoto et al., "A 2 Million Pixel FIT-CCD Image Sensor for HDTV Camera System", 1990 IEEE International Solid-State Circuits Conference, Feb. 16, 1990, pp. 214-215.

Affiliated with

Also associated with

Rating

Solid state image sensor and its fabrication does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid state image sensor and its fabrication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid state image sensor and its fabrication will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2214824