US4945400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subassembly for optoelectronic devices
Assignee: Nokia Bell Labs
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Filing: 1989-10-30
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Granted: 1990-07-31
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Expires: 2009-10-30
Abstract
Abstract A subassembly for use in packaging an optoelectronic device (e.g., LED or photodiode) includes a semiconductor (e.g., silicon) base and lid having a variety of etched features (e.g., grooves, cavities, alignment detents) and metalization patterns (e.g., contacts, reflectors) which enable the device to be reliably and inexpensively mounted on the base and coupled to the fiber.
Inventors
- 👤 Greg E. Blonder
- 👤 Bertrand H. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:36
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4274; G02B6/4277; G02B6/4204; G02B6/4214; G02B6/4219; G02B6/4234; G02B6/4228; G02B6/423; G02B6/4231
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
123 words
A subassembly for an optoelectronic device comprising a first member which is transparent to light transmitted between said device and the exterior of said subassembly, said device being mounted on one side of said first member, a semiconductor lid mounted on said one side of said first member and hermetically sealed thereto, said lid having a cavity therein for receiving said device, a semiconductor second member mounted on another side of said first member, said second member having a groove therein adapted to receive an optical fiber, said groove having side walls and an oblique end face formed by crystallographic planes, and a reflector disposed on said end face to direct light between said fiber and said device and through said first member.
Claim 2
Dependent Claim
123 words
A subassembly for an optoelectronic device comprising a first member which is transparent to light transmitted between said device and the exterior of said subassembly, said device being mounted on one side of said first member, a semiconductor lid mounted on said one side of said first member and hermetically sealed thereto, said lid having a cavity therein for receiving said device, a semiconductor second member mounted on another side of said first member, said second member having a groove therein adapted to receive an optical fiber, said groove having side walls and an oblique end face formed by crystallographic planes, and a reflector disposed on said end face to direct light between said fiber and said device and through said first member.
Claim 3
Dependent Claim
11 words
The subassembly of claim 1 wherein said device is a photodiode.
Claim 4
Dependent Claim
16 words
The subassembly of claim 1 wherein said lid and said second member comprise single crystal silicon.
Claim 5
Dependent Claim
13 words
The subassembly of claim 1 wherein said first member comprises a transparent glass.
Claim 6
Dependent Claim
11 words
The subassembly of claim 1 wherein said first member comprises silicon.
Claim 7
Dependent Claim
13 words
The subassembly of claim 2 wherein said first member comprises a transparent glass.
Claim 8
Dependent Claim
11 words
The subassembly of claim 2 wherein said first member comprises silicon.
Claim 9
Dependent Claim
13 words
The subassembly of claim 3 wherein said first member comprises a transparent glass.
Claim 10
Dependent Claim
11 words
The subassembly of claim 3 wherein said first member comprises silicon.
Claim 11
Dependent Claim
12 words
The subassembly of claim 1 wherein the optoelectronic device is a laser.
Claim 12
Dependent Claim
13 words
The subassembly of claim 10 wherein the first member comprises a transparent glass.
Claim 13
Dependent Claim
11 words
The subassembly of claim 10 wherein the first member comprises silicon.
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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) | 1993-07-30 | 1994-01-29 | 1994-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-30 | 1998-01-29 | 1998-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-30 | 2002-01-29 | 2002-07-31 | $7700.00 | Window Closed / Lapsed |