Solid-state image pickup device

Details Solid-state image pickup device Solid-state image pickup device

2008-07-22

2008-07-22

Prenty, Mark (Department: 2822)

Semiconductor device manufacturing: process

Making device or circuit responsive to nonelectrical signal

Responsive to electromagnetic radiation

C438S270000

Reexamination Certificate

active

11821715

ABSTRACT:
A solid-state image pickup device1according to the present invention includes a semiconductor substrate2on which a pixel20composed of a photodiode3and a transistor is formed. The transistor comprising the pixel20is formed on the surface of the semiconductor substrate, a pn junction portion formed between high concentration regions of the photodiode3is provided within the semiconductor substrate2and a part of the pn junction portion of the photodiode3is extended to a lower portion of the transistor formed on the surface of the semiconductor substrate2. According to the present invention, there is provided a solid-state image pickup device in which a pixel size can be microminiaturized without lowering a saturated electric charge amount (Qs) and sensitivity.

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patent: 11-122532 (1999-04-01), None
patent: 2003-031785 (2003-01-01), None

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