Method of making an imaging array having a higher sensitivity

Details Method of making an imaging array having a higher sensitivity Method of making an imaging array having a higher sensitivity

1985-06-03

1987-04-21

Hearn, Brian E.

Metal working

Method of mechanical manufacture

Assembling or joining

29576B, 29576W, 29571, 148 15, 148171, 148DIG83, H01L 2126

Patent

active

046584978

ABSTRACT:
An imaging array of the charge transfer type having improved sensitivity is disclosed. The array includes a plurality of substantially parallel charge transfer channels with channel stops therebetween which extend a distance into a semiconductor body. At least some of the channel stops have blooming drains therein for the removal of excess photogenerated charge. The improvement comprises potential barrier means which constrain electrical charge generated by absorption of light in the body to flow into the channels while preventing the loss of such charge by direct flow to the blooming drains. Potential barrier means include buried barrier regions extending a further distance into the body from those channel stops having blooming drain regions therein.
The invention also includes an improved method of forming this array wherein the improvement comprises forming buried barrier regions containing a greater concentration of conductivity modifiers than the channel stops after the blooming drains are formed.

REFERENCES:
patent: 3386865 (1968-06-01), Doo
patent: 3863065 (1975-01-01), Kosonocky et al.
patent: 3866067 (1975-02-01), Amelio
patent: 3896485 (1975-07-01), Early
patent: 3961999 (1976-06-01), Antipov
patent: 4028716 (1977-06-01), van Santen et al.
patent: 4173064 (1979-11-01), Farnow
patent: 4232245 (1980-11-01), Savoye et al.
patent: 4362575 (1982-12-01), Wallace
patent: 4396438 (1983-08-01), Goodman
patent: 4435897 (1984-03-01), Kuroda et al.

Affiliated with

Also associated with

Rating

Method of making an imaging array having a higher sensitivity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making an imaging array having a higher sensitivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making an imaging array having a higher sensitivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-742771