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US5488239A Expired / Lapsed US ⏱️ 0.0 years remaining

Solid state image sensor with shaped photodiodes

Assignee: Intellectual Ventures II LLC
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Filing: 1994-07-14
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Granted: 1996-01-30
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Expires: 2014-07-14
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Abstract

Abstract A solid state image sensor including (a) a plurality of photodiodes arranged such that the photodiodes in odd number columns and the photodiodes in even number columns straddle each other, for generating image signal charges by converting light signals into electrical signals, (b) vertical charge coupled devices each formed between the photodiode columns for vertically transmitting the image signal charges generated in each of the photodiodes, and (c) a plurality of microlenses each arranged matched with each of the plurality of photodiodes over each of the photodiodes. Each of the photodiodes is shaped like a peanut shell having a narrower middle part. The photodiodes shape is thereby matched to the focusing shape of each matching microlens, optimizing the cell layout efficiency.

Inventors

  • 👤 Hun J. Jung

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:39
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F39/153; H10F39/1534; H10F39/151; H10F39/80; H10F39/806; H10F39/8063

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 103 words
A solid state image sensor comprising: (a) a plurality of photodiodes arranged such that the photodiodes in odd number columns and the photodiodes in even number columns straddle each other, for generating image signal charges by converting light signals into electrical signals, wherein each of the photodiodes is shaped like a peanut shell having a narrower middle part; (b) vertical charge coupled devices each formed between the photodiode columns for transmitting the image signal charges generated in each of the photodiodes, vertically; and (c) a plurality of microlenses each arranged matched with each of the plurality of photodiodes over each of the photodiodes.
Claim 2
Dependent Claim 103 words
A solid state image sensor comprising: (a) a plurality of photodiodes arranged such that the photodiodes in odd number columns and the photodiodes in even number columns straddle each other, for generating image signal charges by converting light signals into electrical signals, wherein each of the photodiodes is shaped like a peanut shell having a narrower middle part; (b) vertical charge coupled devices each formed between the photodiode columns for transmitting the image signal charges generated in each of the photodiodes, vertically; and (c) a plurality of microlenses each arranged matched with each of the plurality of photodiodes over each of the photodiodes.
Claim 3
Dependent Claim 22 words
The solid state image sensor as claimed in claim 1, wherein each of the vertical charge coupled devices has an "s" shape.

References Cited (Backward Citations)

JPS5888976A Cited
US4602289A Cited
JPS60187187A Cited
US5274476A Cited
US5306906A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-01-29 1999-07-31 2000-01-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-01-29 2003-07-31 2004-01-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-01-29 2007-07-31 2008-01-30 $7700.00 Window Closed / Lapsed

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