Patent US4331258A successfully refreshed from Google Patents.
US4331258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing cover for an hermetically sealed container
Assignee: Raychem Corp
•
Filing: 1981-03-05
•
Granted: 1982-05-25
•
Expires: 2001-03-05
Abstract
Abstract A sealing cover for an hermetically sealed container comprises an environmentally resistant metal lid, an intermediate plated metallic "picture frame", and a solder deposit metallurgically bonded to that "frame". Such a cover is particularly adapted for the sealing of semiconductor packages, and is especially advantageous in that it need not employ precious metals.
Inventors
- 👤 Gary I. Geschwind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:32
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; H10W76/60; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W72/00; H10W72/071; H10W72/075; H10W72/90; H10W72/951; H10W72/952; H10W90/00; H10W90/701; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
53 words
A sealing cover for hermetically sealing a container, comprising: (a) an environmentally resistant metallic lid; (b) an intermediate layer comprising metal plating on only that part of the surface of said lid which is to be rendered solderable; and (c) a layer of solder disposed on said intermediate layer and metallurgically bonded thereto.
Claim 2
Dependent Claim
53 words
A sealing cover for hermetically sealing a container, comprising: (a) an environmentally resistant metallic lid; (b) an intermediate layer comprising metal plating on only that part of the surface of said lid which is to be rendered solderable; and (c) a layer of solder disposed on said intermediate layer and metallurgically bonded thereto.
Claim 3
Dependent Claim
38 words
A sealing cover as in claim 1 wherein the metal comprising said lid is selected from the group consisting of nickel-titanium alloys, titanium alloys, tantalum alloys, niobium alloys, molybdenum alloys, tungsten alloys, nickel, and 300 series stainless steels.
Claim 4
Dependent Claim
17 words
A sealing cover as in claim 2 wherein the metal comprising said lid is a nickel-titanium alloy.
Claim 5
Dependent Claim
14 words
A sealing cover as in claim 1 wherein the intermediate layer comprises nickel plating.
Claim 6
Dependent Claim
16 words
A sealing cover as in claim 1 wherein the solder comprises a predominantly non-precious metal alloy.
Claim 7
Dependent Claim
15 words
A sealing cover as in claim 5 wherein the solder comprises a predominantly tin-lead alloy.
Claim 8
Dependent Claim
31 words
A sealing cover as in claim 1 wherein the intermediate layer and solder layer lie on a picture frame about the circumference of one side and the edges of the lid.
References Cited (Backward Citations)
US3364064A
Cited
US3340348A
Cited
US3538597A
Cited
US3515950A
Cited
US3634048A
Cited
US3579817A
Cited
US3648357A
Cited
US3665592A
Cited
US3823486A
Cited
US3946190A
Cited
US3874549A
Cited
US3949122A
Cited
US4126758A
Cited
US4109818A
Cited
US4020987A
Cited
US4105861A
Cited
DE7608744U1
Cited
USRE30348E
Cited
US4192433A
Cited
US4190176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |