Patent US3543366A successfully refreshed from Google Patents.
Patent US5433911A successfully refreshed from Google Patents.
US5433911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precisely aligning and bonding a glass cover plate over an image sensor
Assignee: Eastman Kodak Co
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Filing: 1994-05-31
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Granted: 1995-07-18
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Expires: 2014-05-31
Abstract
Abstract A method of precisely aligning and fastening a glass cover plate over an image sensor includes the use of first and second sets of spacers arranged so that the glass cover plate is provided on the base plate and the image sensor is provided on the first set of spacers and spaced from a carrier mounted on the second set of spacers. An adhesive secures the glass cover plate to the image sensor as well as the image sensor to the carrier.
Inventors
- 👤 Edward J. Ozimek
- 👤 Herbert J. Erhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:28
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10F39/00; H10F39/80; H10F39/804; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49128
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
185 words
A method of precisely aligning and fastening a glass cover plate over an image sensor comprising: (a) placing a glass cover plate over a optically flat transparent spacer plate; (b) providing a first set of spacers secured to the spacer plate and upon which is mounted the image sensor so that the image sensor is spaced from the cover plate such that the spacing is critically controlled to be within a few microns of tolerance; (c) providing a second set of spacers spaced from the first set of spacers and mounted on the spacer plate; (d) mounting a carrier on the second set of spacers so that it is spaced from the image sensor, the arrangement being such that the carrier surface opposed from the spacer plate surface are parallel to within less than a 1000th of a radian; (e) dispensing an optical adhesive between the glass cover plate and the image sensor to secure the glass cover plate to the image sensor; and (f) dispensing an electrically conductive adhesive between the image sensor and the carrier to secure the image sensor to the carrier.
Claim 2
Independent Claim
185 words
A method of precisely aligning and fastening a glass cover plate over an image sensor comprising: (a) placing a glass cover plate over a optically flat transparent spacer plate; (b) providing a first set of spacers secured to the spacer plate and upon which is mounted the image sensor so that the image sensor is spaced from the cover plate such that the spacing is critically controlled to be within a few microns of tolerance; (c) providing a second set of spacers spaced from the first set of spacers and mounted on the spacer plate; (d) mounting a carrier on the second set of spacers so that it is spaced from the image sensor, the arrangement being such that the carrier surface opposed from the spacer plate surface are parallel to within less than a 1000th of a radian; (e) dispensing an optical adhesive between the glass cover plate and the image sensor to secure the glass cover plate to the image sensor; and (f) dispensing an electrically conductive adhesive between the image sensor and the carrier to secure the image sensor to the carrier.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein the first and second spacers are formed from the same glass block.
Claim 4
Dependent Claim
18 words
The method of claim 2 further including removing the spacers and spacer plate from the previously formed structure.
Claim 5
Dependent Claim
17 words
The method of claim 2 wherein the carrier is formed from Al 2 O 3 or AlN.
References Cited (Backward Citations)
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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) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |