Patent US4126758A successfully refreshed from Google Patents.
US4126758A
Expired / Lapsed
US
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Method for sealing integrated circuit components with heat recoverable cap and resulting package
Assignee: Raychem Corp
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Filing: 1974-04-30
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Granted: 1978-11-21
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Expires: 1994-04-30
Abstract
Abstract A method of sealing electrical components by positioning over the electrical component a heat recoverable sealing member. When a metal sealing member is utilized, the metal is in a deformed, unstable martensitic state, and thereafter is allowed to heat recover to a stable, austenitic state. When a plastic material is used, the polymer is heated, deformed and quenched in an unstable state, so upon heating it recovers via its elastic memory to a stable state.
Inventors
- 👤 John F. Krumme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:34
CPC Classifications
H; H10; H10W; H10W95/00; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49146; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
161 words
A method of sealing a container having at its open end a sealing ring, said sealing ring having a substantially horizontal portion joined to a wall portion to form an acute angle defined by a surface of the horizontal portion and the inner surface of the wall portion, the method comprising bringing a member capable of being rendered heat recoverable to a temperature at which it is at its heat-unstable state and deforming said member in its unstable state to render it heat-recoverable; inserting said heat-recoverable member into an area having a transverse dimension defined by said sealing ring, the heat-recoverable member having a transverse dimension approximately equal to the transverse dimension of said sealing ring; and bringing said heat-recoverable member to a temperature at which it recovers to cause the transverse dimension of said heat-recoverable member to increase whereby said heat-recoverable member, as it recovers from its heat-unstable state, exerts sufficient pressure against the sealing ring to seal said container.
Claim 2
Independent Claim
161 words
A method of sealing a container having at its open end a sealing ring, said sealing ring having a substantially horizontal portion joined to a wall portion to form an acute angle defined by a surface of the horizontal portion and the inner surface of the wall portion, the method comprising bringing a member capable of being rendered heat recoverable to a temperature at which it is at its heat-unstable state and deforming said member in its unstable state to render it heat-recoverable; inserting said heat-recoverable member into an area having a transverse dimension defined by said sealing ring, the heat-recoverable member having a transverse dimension approximately equal to the transverse dimension of said sealing ring; and bringing said heat-recoverable member to a temperature at which it recovers to cause the transverse dimension of said heat-recoverable member to increase whereby said heat-recoverable member, as it recovers from its heat-unstable state, exerts sufficient pressure against the sealing ring to seal said container.
Claim 3
Dependent Claim
88 words
A sealed container having contents therein comprising an integral bottom and vertical walls and having contiguous with the vertical walls at its sealed end a sealing ring, said sealing ring having a substantially horizontal portion joined to a wall portion to form an acute angle defined by a surface of the horizontal portion and the inner surface of the wall portion, and having inserted within the area defined by said sealing ring a heat-recoverable sealing member which exerts sufficient pressure against said sealing ring to seal the container.
Claim 4
Dependent Claim
88 words
A sealed container having contents therein comprising an integral bottom and vertical walls and having contiguous with the vertical walls at its sealed end a sealing ring, said sealing ring having a substantially horizontal portion joined to a wall portion to form an acute angle defined by a surface of the horizontal portion and the inner surface of the wall portion, and having inserted within the area defined by said sealing ring a heat-recoverable sealing member which exerts sufficient pressure against said sealing ring to seal the container.
Claim 5
Independent Claim
161 words
A method of sealing an electrical component on a substrate, said substrate having means for electrically connecting the component and having walls to encompass the component, said method comprising: forming a sealing ring with an inward bend; attaching the sealing ring to the substrate; bringing a member capable of being rendered heat recoverable to a temperature at which it is at its heat-unstable state and deforming said member in its heat-unstable state to render it heat recoverable; inserting said member into an area having a transverse dimension defined by said sealing ring and over said component, the heat recoverable member having a transverse dimension approximately equal to the transverse dimension defined by said sealing ring; and bringing said member to a temperature at which it recovers to cause the transverse dimension of said member to increase whereby said member exerts sufficient pressure against said sealing ring to seal the electrical component enveloped therein when the member is in its heat-stable state.
Claim 6
Independent Claim
161 words
A method of sealing an electrical component on a substrate, said substrate having means for electrically connecting the component and having walls to encompass the component, said method comprising: forming a sealing ring with an inward bend; attaching the sealing ring to the substrate; bringing a member capable of being rendered heat recoverable to a temperature at which it is at its heat-unstable state and deforming said member in its heat-unstable state to render it heat recoverable; inserting said member into an area having a transverse dimension defined by said sealing ring and over said component, the heat recoverable member having a transverse dimension approximately equal to the transverse dimension defined by said sealing ring; and bringing said member to a temperature at which it recovers to cause the transverse dimension of said member to increase whereby said member exerts sufficient pressure against said sealing ring to seal the electrical component enveloped therein when the member is in its heat-stable state.
Claim 7
Dependent Claim
67 words
The method of claim 3 wherein the step of deforming includes deforming the member from a substantially flat to a substantially dish-shaped configuration while in the unstable state prior to insertion so that after insertion, the heat recoverable member upon being brought to the temperature at which it recovers is urged to its original configuration thereby exerting pressure against the sealing ring to seal the electrical component.
Claim 8
Dependent Claim
66 words
The method of claim 3 wherein the step of deforming includes deforming the member from a substantially flat to a substantially dish-shaped configuration while in the unstable state during insertion so that after insertion, the heat recoverable member upon being brought to the temperature at which it recovers is urged to its original configuration thereby exerting pressure against the sealing ring to seal the electrical component.
Claim 9
Dependent Claim
78 words
A method according to claim 3 wherein the step of deforming includes deforming the member while in the unstable state from a substantially flat original configuration to impart to it an annular ridge thereby reducing its transverse dimension prior to insertion so that after insertion, the heat recoverable member upon being brought to the temperature at which it recovers is urged to its original configuration and thereby exerts pressure against the sealing ring to seal the electrical component.
Claim 10
Dependent Claim
29 words
A method according to claim 6 wherein the step of deforming includes deforming the member to impart to it an annular ridge inboard of the edge of the member.
Claim 11
Dependent Claim
80 words
An electronic package containing an electrical component comprising a substrate of a ceramic material having electrical conductors metallized thereon for electrically connecting the component, said substrate having walls to encompass the component, a metal ring bonded to the substrate and forming an extension of said walls, and a heat-recoverable sealing member inserted into the area defined by said walls over said component that has been recovered to exert sufficient pressure against said ring to seal the electrical component enveloped therein.
Claim 12
Dependent Claim
80 words
An electronic package containing an electrical component comprising a substrate of a ceramic material having electrical conductors metallized thereon for electrically connecting the component, said substrate having walls to encompass the component, a metal ring bonded to the substrate and forming an extension of said walls, and a heat-recoverable sealing member inserted into the area defined by said walls over said component that has been recovered to exert sufficient pressure against said ring to seal the electrical component enveloped therein.
Claim 13
Dependent Claim
21 words
The package of claim 8 wherein the ring has an inward bend into which the sealing member is wedged upon recovery.
Claim 14
Dependent Claim
13 words
The package of claim 9 wherein the sealing member is a heat-recoverable metal.
Claim 15
Dependent Claim
45 words
The package of claim 10 wherein the inner surface of said walls is a soft metal such that upon recovery of said sealing member against said walls, the soft metal will deform to form a gas tight seal between the sealing member and the walls.
Claim 16
Dependent Claim
19 words
The package of claim 11 wherein the soft metal is selected from the group consisting of gold and nickel.
Claim 17
Dependent Claim
13 words
The package of claim 9 wherein the sealing member is a heat-recoverable plastic.
Claim 18
Dependent Claim
12 words
The package of claim 13 wherein the plastic is a polyarylene plastic.
Claim 19
Dependent Claim
25 words
A package according the claim 9 wherein the sealing member is provided with means to aid in its positioning within the walls of the substrate.
Claim 20
Dependent Claim
27 words
A package according to claim 15 wherein said positioning means is a protrusion from the top surface of the sealing member adapted to engage a holding tool.
References Cited (Backward Citations)
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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) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |