Solid state imaging device having high-sensitivity and low-noise

Details Solid state imaging device having high-sensitivity and low-noise Solid state imaging device having high-sensitivity and low-noise

1993-11-24

1994-10-18

Ngo, Ngan V.

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

Field effect device

Charge transfer device

257223, 257230, 257232, 257233, 257241, 377 62, H01L 2978, H01L 2714, H01L 3100

Patent

active

053571290

ABSTRACT:
There is provided a solid state imaging device having high-sensitivity, low-noise characteristics by reducing electrostatic capacity relating to interconnection. The solid state imaging device includes a photoelectric conversion section, a transfer section, a floating diffusion layer for receiving signal charges from the transfer section, and an output transistor having a gate electrode connected to the floating diffusion layer via an interconnection. A source and a drain of the output transistor are provided commonly within a flat p-type well of relatively thin concentration in which the photoelectric conversion section, the transfer section, and the floating diffusion layer are also provided. It becomes possible to reduce an interconnection capacity, a gate-drain capacity, and a gate-channel capacity, to increase gain of a source follower circuit, to relax electric fields in the vicinity of the drain, and to prevent electric charges from inflow and outflow from substrate, without any increase in the fabrication process. As a result, a high-sensitivity, low-noise solid state imaging device can be offered.

REFERENCES:
patent: 4660064 (1987-04-01), Hamasaki
patent: 5029190 (1991-07-01), Narabu et al.
patent: 5202907 (1993-04-01), Yonemoto

Affiliated with

Also associated with

Rating

Solid state imaging device having high-sensitivity and low-noise 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 imaging device having high-sensitivity and low-noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid state imaging device having high-sensitivity and low-noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2374587