US6403948B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-detecting module having a fiber optic groove on rear surface of integrated circuit device
Assignee: NEC Corp
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Filing: 1999-12-28
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Granted: 2002-06-11
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Expires: 2019-12-28
Abstract
Abstract On a module substrate on which a wiring pattern is formed, an integrated circuit device is mounted via solder bumps so that the front surface thereof faces the module substrate. An optical fiber is seated within a groove formed on the rear surface of the integrated circuit device. Additionally, a photo-detecting device is mounted on the module substrate for receiving light transmitted through the optical fiber. This allows the photo-detecting module to reduce the number of mounted parts and to be fabricated in less time.
Inventors
- 👤 Masashi Tachigori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:55
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4219; G02B6/4228; G02B6/423; G01; G01J; G01J1/00; G01J1/02; G01J1/04; G01J1/0407; G01J1/0425; G02B6/4236; G02B6/424; G02B6/4243; G02B6/4245; G02B6/4274; G01J1/0204; G02B6/4232
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A photo-detecting module comprising: a module substrate on which a wiring pattern is formed, an integrated circuit device mounted on said module substrate via solder bumps so that a front surface thereof where an integrated circuit is provided faces said module substrate, said integrated circuit device having a groove on a rear surface thereof, an optical fiber seated within said groove formed on said rear surface of said integrated circuit device, and a photo-detecting device, mounted on said module substrate, for receiving light transmitted through said optical fiber.
Claim 2
Dependent Claim
88 words
A photo-detecting module comprising: a module substrate on which a wiring pattern is formed, an integrated circuit device mounted on said module substrate via solder bumps so that a front surface thereof where an integrated circuit is provided faces said module substrate, said integrated circuit device having a groove on a rear surface thereof, an optical fiber seated within said groove formed on said rear surface of said integrated circuit device, and a photo-detecting device, mounted on said module substrate, for receiving light transmitted through said optical fiber.
Claim 3
Dependent Claim
31 words
The photo-detecting module according to claim 1 , wherein said integrated circuit device and photo-detecting device are mounted on a block which is used for positioning in the direction of height.
Claim 4
Dependent Claim
27 words
The photo-detecting module according to claim 1 , comprising an optical fiber retainer holding said optical fiber by sandwiching said optical fiber with said integrated circuit device.
Claim 5
Dependent Claim
19 words
The photo-detecting module according to claim 1 , wherein said groove is formed in a shape of letter V.
Claim 6
Dependent Claim
19 words
The photo-detecting module according to claim 2 , wherein said groove is formed in a shape of letter V.
Claim 7
Dependent Claim
19 words
The photo-detecting module according to claim 3 , wherein said groove is formed in a shape of letter V.
Claim 8
Dependent Claim
105 words
A photo-detection module, comprising: a substrate having a wiring pattern on a first surface thereof; an integrated circuit device mounted on said first surface of said substrate, said integrated circuit device having a circuit on a front surface that faces said first surface and a groove in a rear surface opposite said front surface; an optical fiber seated in said groove; and a photodetector mounted on said first surface of said substrate so as to receive light from said optical fiber, said photodetector being electrically connected to said integrated circuit device through a part of said wiring pattern on said first surface of said substrate.
Claim 9
Dependent Claim
105 words
A photo-detection module, comprising: a substrate having a wiring pattern on a first surface thereof; an integrated circuit device mounted on said first surface of said substrate, said integrated circuit device having a circuit on a front surface that faces said first surface and a groove in a rear surface opposite said front surface; an optical fiber seated in said groove; and a photodetector mounted on said first surface of said substrate so as to receive light from said optical fiber, said photodetector being electrically connected to said integrated circuit device through a part of said wiring pattern on said first surface of said substrate.
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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) | 2005-06-10 | 2005-12-10 | 2006-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-10 | 2009-12-10 | 2010-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-10 | 2013-12-10 | 2014-06-11 | $7700.00 | Window Closed / Lapsed |