US6157019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edge photosite definition by opaque filter layer
Assignee: Xerox Corp
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Filing: 1999-03-31
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Granted: 2000-12-05
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Expires: 2019-03-31
Abstract
Abstract The present invention relates to photosensitive chips for creating electrical signals from an original image, as would be found for example in a digital scanner, copier, facsimile machine, or other document generating or reproducing device. More specifically, the present invention provides a way of shielding the edge photosites with an opaque layer that overlaps the diced region and preserves the integrity of the filter layers while eliminating the need for a guardring to decrease the dead space and consequently reduce the undesirable effects of Moire patterns.
Inventors
- 👤 Paul A. Hosier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:53
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/18; H10F39/011; H10F39/026; H10F39/80; H10F39/805; H10F39/8053; H10F39/8057
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
37 words
A photosensitive chip comprising: an edge; at least one linear array of photosites having a uniform pitch and including at least one edge photosite; and an opaque layer being deposited between said edge and said edge photosite.
Claim 2
Dependent Claim
37 words
A photosensitive chip comprising: an edge; at least one linear array of photosites having a uniform pitch and including at least one edge photosite; and an opaque layer being deposited between said edge and said edge photosite.
Claim 3
Dependent Claim
34 words
The photosensitive chip as in claim 1, wherein the chip comprises three linear arrays of photosites with three edge photosites, and wherein an opaque layer is deposited between said edge and said edge photosites.
Claim 4
Dependent Claim
26 words
The photosensitive chip as in claim 2, wherein each linear array receives one translucent filter material selected from the group consisting of red, green and blue.
Claim 5
Dependent Claim
25 words
The photosensitive chip as in claim 1, wherein the opaque layer is formed from a red translucent filter material and a blue translucent filter material.
Claim 6
Dependent Claim
18 words
The photosensitive chip as in claim 1, wherein the opaque layer is formed from a black filter material.
Claim 7
Dependent Claim
23 words
The photosensitive chip as in claim 1, wherein the photosites have a pixel width in a range of 55.5 micrometers to 59.5 micrometers.
Claim 8
Dependent Claim
43 words
The photosensitive chip as in claim 1, wherein the pitch of the edge photosite is slightly different from the uniform pitch of the other photosites, so that the pixel width of each photosite is in a range of 55.5 micrometers to 61.5 micrometers.
Claim 9
Dependent Claim
14 words
The photosensitive chip as in claim 1, wherein each photosite has a corresponding photosensor.
Claim 10
Dependent Claim
28 words
The photosensitive chip as in claim 1, wherein the photosites have a pitch, which provides a modulation transfer function amplitude of 0.1 or less at the sampling frequency.
Claim 11
Dependent Claim
67 words
An assembly comprising: a substrate; and a plurality of photosensitive chips attached to the substrate, each of the chips juxtaposed with one another, wherein each chip comprises: an edge; at least one linear array of photosites having a uniform pitch and including at least one edge photosite; and an opaque layer being deposited between the edge of the photosensitive chip and said at least one edge photosite.
Claim 12
Dependent Claim
67 words
An assembly comprising: a substrate; and a plurality of photosensitive chips attached to the substrate, each of the chips juxtaposed with one another, wherein each chip comprises: an edge; at least one linear array of photosites having a uniform pitch and including at least one edge photosite; and an opaque layer being deposited between the edge of the photosensitive chip and said at least one edge photosite.
Claim 13
Dependent Claim
36 words
The assembly as in claim 10, wherein the chip comprises three linear arrays of photosites with three edge photosites, and wherein an opaque layer is deposited between the edge of the chip and the edge photosites.
Claim 14
Dependent Claim
25 words
The assembly as in claim 11, wherein each linear array receives one translucent filter material selected from the group consisting of red, green and blue.
Claim 15
Dependent Claim
24 words
The assembly as in claim 10, wherein the opaque layer is formed from a red translucent filter material and a blue translucent filter material.
Claim 16
Dependent Claim
17 words
The assembly as in claim 10, wherein the opaque layer is formed from a black filter material.
Claim 17
Dependent Claim
22 words
The assembly as in claim 10, wherein the photosites have a pixel width in a range of 55.5 micrometers to 59.5 micrometers.
Claim 18
Dependent Claim
42 words
The assembly as in claim 10, wherein the pitch of the edge photosite is slightly different from the uniform pitch of the other photosites, so that the pixel width of each photosite is in a range of 55.5 micrometers to 61.5 micrometers.
Claim 19
Dependent Claim
14 words
The assembly chip as in claim 10, wherein each photosite has a corresponding photosensor.
Claim 20
Dependent Claim
27 words
The assembly as in claim 10, wherein the photosites have a pitch, which provides a modulation transfer function amplitude of 0.1 or less at the sampling frequency.
Claim 21
Dependent Claim
92 words
A digital device comprising: a raster input scanner scanning documents to generate digital image signals, the raster input scanner including a plurality of generally rectangular chips, which are assembled end to end on a substrate forming a full width array of at least one linear array of photosites, wherein each chip comprises: an edge; at least one linear array of photosites having a uniform pitch and including at least one edge photosite; and an opaque layer being deposited between the edge of the photosensitive chip and said at least one edge photosite.
Claim 22
Dependent Claim
92 words
A digital device comprising: a raster input scanner scanning documents to generate digital image signals, the raster input scanner including a plurality of generally rectangular chips, which are assembled end to end on a substrate forming a full width array of at least one linear array of photosites, wherein each chip comprises: an edge; at least one linear array of photosites having a uniform pitch and including at least one edge photosite; and an opaque layer being deposited between the edge of the photosensitive chip and said at least one edge photosite.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-12-05 | 2004-06-05 | 2004-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-05 | 2008-06-05 | 2008-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-05 | 2012-06-05 | 2012-12-05 | $7700.00 | Window Closed / Lapsed |