Patent US5357056A successfully refreshed from Google Patents.
US5357056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip carrier for optical device
Assignee: NEC Corp
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Filing: 1993-03-23
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Granted: 1994-10-18
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Expires: 2013-03-23
Abstract
Abstract A chip carrier for an optical device according to the present invention has a carrier body of insulating material, an external electrode, a glass cover fixed on one end of the carrier body, and a metal cover fixed on the other end of the carrier body. The optical device is connected at an electrode thereof to an inside end of the external electrode by a flip-chip bonding.
Inventors
- 👤 Tuyosi Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:35
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/8506; H10H20/857; H10W; H10W90/00; H10W90/701; H10W90/721; H10W90/724
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
102 words
A chip carrier for an optical device, comprising: an insulating board with an aperture which is narrow enough to mount said optical device over said aperture on said insulating board and wide enough to optically couple said optical apparatus to an external device; a lead on said insulating board, said lead electrically connecting said optical device to said external apparatus, a conductive spot member arranged between said lead and an electrode of said optical device; a metal cover for sealing said optical device; and a transparent cover for sealing said aperture on a side of said insulating board opposite said optical device.
Claim 2
Dependent Claim
102 words
A chip carrier for an optical device, comprising: an insulating board with an aperture which is narrow enough to mount said optical device over said aperture on said insulating board and wide enough to optically couple said optical apparatus to an external device; a lead on said insulating board, said lead electrically connecting said optical device to said external apparatus, a conductive spot member arranged between said lead and an electrode of said optical device; a metal cover for sealing said optical device; and a transparent cover for sealing said aperture on a side of said insulating board opposite said optical device.
Claim 3
Dependent Claim
25 words
A chip carrier for an optical device, according to claim 1, wherein: said metal cover is depressed to be in contact with said optical device.
Claim 4
Dependent Claim
18 words
A chip carrier for an optical device, according to claim 1, wherein: said metal cover is shaped wavy.
Claim 5
Dependent Claim
38 words
A chip carrier for an optical device, according to claim 3, wherein: said metal cover, which is shaped wavy, has many wavy patterns with a small pitch to be in contact with said optical device at some portion.
Claim 6
Dependent Claim
35 words
A chip carrier for an optical device, according to claim 1, further comprising: a metal leaf provided between said optical device and said metal cover, said metal leaf being in contact with both of them.
Claim 7
Dependent Claim
18 words
A chip carrier for an optical device, according to claim 5, wherein: said metal leaf is shaped wavy.
Claim 8
Dependent Claim
31 words
A chip carrier for an optical device, according to claim 1, further comprising: conductive paste provided between said optical device and said metal cover, being in contact with both of them.
Claim 9
Dependent Claim
32 words
A chip carrier for an optical device, according to claim 7, further comprising: ultraviolet hardening resin provided between said optical device and said lead for insulating said conductive paste from said lead.
Claim 10
Dependent Claim
42 words
A chip carrier for an optical device, according to claim 1, further comprising: solder provided between said optical device and said metal cover; and ultraviolet hardening resin provided between said optical device and said lead for insulating said solder from said lead.
References Cited (Backward Citations)
JPS5669842A
Cited
US4961105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-17 | 1998-04-18 | 1998-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-17 | 2002-04-18 | 2002-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-17 | 2006-04-18 | 2006-10-18 | $7700.00 | Window Closed / Lapsed |