US5256891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
CCD electrode structure for image sensors
Assignee: Eastman Kodak Co
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Filing: 1992-08-21
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Granted: 1993-10-26
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Expires: 2012-08-21
Abstract
Abstract An image sensor including CCDs, a charge coupled device (CCD) or shift register. Each CCD structure is formed of a set of electrodes wherein at least one electrode of each set is formed of a connected layer of opaque conducting material.
Inventors
- 👤 David L. Losee
- 👤 Eric G. Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:16
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F77/00; H10F77/30; H10F77/306; H10F77/331; H10F77/334
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
An interline transfer type area image sensor comprising: a plurality of photocollection sites arranged in an array of rows and columns, each of the photocollection sites being capable of collecting charge therein; a separate CCD extending along each column of the photocollection sites and adapted to receive therein the charge from the photocollection sites in the adjacent column, each of the CCDs comprising: a series of sets of electrodes with at least one set of the electrodes being formed of a single continuous layer of an opaque conducting material extending over all of all the CCDs; and one voltage clock connected to the one set of the electrodes and a separate voltage clock connected to the other sets of electrodes.
Claim 2
Dependent Claim
120 words
An interline transfer type area image sensor comprising: a plurality of photocollection sites arranged in an array of rows and columns, each of the photocollection sites being capable of collecting charge therein; a separate CCD extending along each column of the photocollection sites and adapted to receive therein the charge from the photocollection sites in the adjacent column, each of the CCDs comprising: a series of sets of electrodes with at least one set of the electrodes being formed of a single continuous layer of an opaque conducting material extending over all of all the CCDs; and one voltage clock connected to the one set of the electrodes and a separate voltage clock connected to the other sets of electrodes.
Claim 3
Dependent Claim
21 words
The image sensor of claim 1 wherein each CCD is a two-phase device and the opaque electrode overlies an adjacent electrode.
Claim 4
Dependent Claim
24 words
The image sensor of claim 2, wherein the connected layer of opaque material is patterned with apertures to admit light to a photocollection site.
Claim 5
Dependent Claim
27 words
The image sensor of claim 3 wherein the opaque conducting material is formed as a layer of doped polysilicon which is overlaid with a refractory metal silicide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-25 | 1997-04-26 | 1997-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-25 | 2001-04-26 | 2001-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-25 | 2005-04-26 | 2005-10-26 | $7700.00 | Window Closed / Lapsed |