US5691536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-detector having a uniform output characteristic and fabricating method therefor
Assignee: Panasonic Holdings Corp
•
Filing: 1995-05-30
•
Granted: 1997-11-25
•
Expires: 2015-05-30
Abstract
Abstract In a photo-detector, a window pane member for covering a photosensitive semiconductor is selected from among plural samples having light transmittances different from each other in compliance with an intensity of output of the photosensitive semiconductor detected under a constant quantity of light incident on the photosensitive semiconductor, thereby compressing dispersion of outputs in the plural photo-detectors into a small range as a whole.
Inventors
- 👤 Masaki Shimoyama
- 👤 Shuichi Kodama
- 👤 Kazuhiro Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:20
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/02; G01J1/04; G01J1/0407; H; H10; H10F; H10F77/00; H10F77/50; G01J1/0204; G01J1/0209; G01J1/0271; G01J1/0488
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
A method for fabricating a photo-detector comprising the steps of: mounting a photosensitive semiconductor on a base means and making an electrical connection with a pair of leads; preparing a plurality of light-transmitting members having light transmittances different from each other; measuring the intensity of the output of said photosensitive semiconductor under a predetermined quantity of light incident on said photosensitive semiconductor; selecting one of said light-transmitting members in accordance with said intensity of the output of the photosensitive semiconductor; and disposing said selected one of the light-transmitting members to cover said photosensitive semiconductor.
Claim 2
Independent Claim
94 words
A method for fabricating a photo-detector comprising the steps of: mounting a photosensitive semiconductor on a base means and making an electrical connection with a pair of leads; preparing a plurality of light-transmitting members having light transmittances different from each other; measuring the intensity of the output of said photosensitive semiconductor under a predetermined quantity of light incident on said photosensitive semiconductor; selecting one of said light-transmitting members in accordance with said intensity of the output of the photosensitive semiconductor; and disposing said selected one of the light-transmitting members to cover said photosensitive semiconductor.
Claim 3
Independent Claim
94 words
A method for fabricating a photo-detector comprising the steps of: preparing a plurality of light-transmitting members having light transmittances different from each other; measuring the intensity of the output of a photosensitive semiconductor under a predetermined quantity of light incident on said photosensitive semiconductor; selecting one of said light-transmitting members in accordance with said intensity of the output of the photosensitive semiconductor; mounting said photosensitive semiconductor on a base means and making an electrical connection with a pair of leads; and disposing said selected one of the light-transmitting members to cover said photosensitive semiconductor.
Claim 4
Independent Claim
94 words
A method for fabricating a photo-detector comprising the steps of: preparing a plurality of light-transmitting members having light transmittances different from each other; measuring the intensity of the output of a photosensitive semiconductor under a predetermined quantity of light incident on said photosensitive semiconductor; selecting one of said light-transmitting members in accordance with said intensity of the output of the photosensitive semiconductor; mounting said photosensitive semiconductor on a base means and making an electrical connection with a pair of leads; and disposing said selected one of the light-transmitting members to cover said photosensitive semiconductor.
References Cited (Backward Citations)
US4182977A
Cited
US4309605A
Cited
USRE35069E
Cited
US5233178A
Cited
US5329131A
Cited
US5289002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-24 | 2001-05-26 | 2001-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-24 | 2005-05-26 | 2005-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-24 | 2009-05-26 | 2009-11-25 | $7700.00 | Window Closed / Lapsed |