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US4641176A
Expired / Lapsed
US
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Semiconductor package with contact springs
Assignee: Unisys Corp
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Filing: 1986-07-11
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Granted: 1987-02-03
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Expires: 2006-07-11
Abstract
Abstract An integrated circuit package for high density applications comprises spring contacts on one face thereof for its removable mounting onto a printed circuit board, the mounting being accomplished by means of a frame assembly and the package being automatically fabricable in a continuous flow process involving its assembly on a transport tape and its final cutting therefrom.
Inventors
- 👤 Alain Keryhuel
- 👤 Christian Meigne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:41
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/453; H10W70/01; H10W70/04; H10W70/047; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; H10W72/00; H10W72/071; H10W72/075; H10W72/07531; H10W72/07532; H10W72/07533; H10W72/50; H10W72/531; H10W72/5363; H10W72/551; H10W72/552; H10W72/5522; H10W72/851; H10W72/874; H10W72/884; H10W74/00; H10W90/00; H10W90/701; H10W90/731; H10W90/734; H10W90/751; H10W90/754; H10W90/756
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
114 words
An integrated circuit packaging system, including an integrated circuit package which comprises; a planar carrier comprising first and second surfaces, said first surface being adapted for having an integrated circuit affixed thereto, a lid for enclosing said integrated circuit against said first surface, a plurality of electrical connections for connecting said integrated circuit to said first surface, a plurality of electrical conductors for continuing said electrical connections from said first to said second surface, and, a plurality of elastic contact springs, affixed to project below said second surface, electrically connected to said plurality of conductors, and compressible to press against external contacts to provide electrical connection between an external circuit and said integrated circuit.
Claim 2
Dependent Claim
114 words
An integrated circuit packaging system, including an integrated circuit package which comprises; a planar carrier comprising first and second surfaces, said first surface being adapted for having an integrated circuit affixed thereto, a lid for enclosing said integrated circuit against said first surface, a plurality of electrical connections for connecting said integrated circuit to said first surface, a plurality of electrical conductors for continuing said electrical connections from said first to said second surface, and, a plurality of elastic contact springs, affixed to project below said second surface, electrically connected to said plurality of conductors, and compressible to press against external contacts to provide electrical connection between an external circuit and said integrated circuit.
Claim 3
Dependent Claim
38 words
An integrated circuit package according to claim 1 wherein said lid comprises one or more projections for extending beyond said second surface to engage said external circuit to limit the amount of compression experienceable by said spring contacts.
Claim 4
Dependent Claim
28 words
An integrated circuit package according to claim 2 wherein said plurality of conductors comprises a plurality of through-plated-holes penetrating said carrier from said first to said second surfaces.
Claim 5
Dependent Claim
23 words
An integrated circuit package according to claim 3 wherein said spring contacts are soldered to the second-surface ends of said through plated holes.
Claim 6
Dependent Claim
43 words
An integrated circuit package according to claim 2 wherein said plurality of conductors comprises a plurality of printed circuit tracks extending across said first surface, traversing the edge of said carrier, and extending across said second surface to couple to said spring contacts.
Claim 7
Dependent Claim
23 words
An integrated circuit package according to claim 5 further including a plurality of wire bonds coupling said contact springs to said integrated circuit.
Claim 8
Dependent Claim
38 words
An integrated circuit package according to claim 6 wherein said lid comprises a recess for holding said carrier, wherein said carrier is affixable by adhesive, and wherein said projections are the extension of said lid beyond said recess.
Claim 9
Dependent Claim
13 words
An integrated circuit package according to claim 7 wherein said carrier is rectangular.
Claim 10
Dependent Claim
20 words
An integrated circuit package according to claim 8 wherein said contact springs are disposed around the periphery of said carrier.
Claim 11
Dependent Claim
23 words
An integrated circuit package according to claim 9 wherein the space between said integrated circuit and said lid is filled with potting compound.
Claim 12
Dependent Claim
89 words
An integrated circuit packaging system as in claim 1, said system including an apparatus for mounting said package against a planar circuit board, said apparatus comprising a package holding frame, said frame being attachable to said circuit board and comprising one or more apertures through penetrating to the surface of said board for the insertion therethrough of said package and the location of said spring contacts against said pads, and, a cover, detachably affixable to said frame, for compressing said package into said aperture and retaining said package therein.
Claim 13
Dependent Claim
50 words
An integrated circuit packaging system according to claim 11 wherein said frame comprises a platform parallel to and in intimate contact with said board wherein are situated said apertures, and aplurality of side walls extensive above said platform for the holding of said cover in intimate contact with said platform.
Claim 14
Dependent Claim
56 words
An integrated circuit packaging system according to claim 12 wherein said side walls comprise a slot parallel to the top of said platform and cutaway portions connective with said slot, and wherein said lid comprises one or more lugs insertable into said slot via said cutaway portions and retainable in said slot thereafter by sliding therealong.
Claim 15
Dependent Claim
20 words
An integrated circuit packaging system according to claim 13 wherein said plurality of side walls consists in two parallel walls.
Claim 16
Dependent Claim
48 words
An integrated circuit packaging system according to claim 14 for use with a package comprising projections for engaging said board for preventing the over-compression of said contact springs thereagainst, characterised by the depth of said apertures being greater than the combined height of said package and said projections.
Claim 17
Dependent Claim
39 words
An integrated circuit packaging system according to claim 15 characterised by said package and said aperture or apertures being of such an outline that said package can fit into said aperture or said apertures only in one, predetermined orientation.
Claim 18
Dependent Claim
35 words
An integrated circuit packaging system according to claim 16 wherein said uniqueness of orientation is determined by the presence of a key and counter key on said package and in said aperture respectively, or vice-versa.
References Cited (Backward Citations)
GB1185857A
Cited
US3558993A
Cited
FR2033678A5
Cited
FR2149350A1
Cited
US3842189A
Cited
US4042861A
Cited
US3904262A
Cited
CH608314A5
Cited
US4079511A
Cited
US4166665A
Cited
US4327953A
Cited
US4210462A
Cited
US4147889A
Cited
GB2025129A
Cited
US4264917A
Cited
US4195193A
Cited
US4223243A
Cited
US4345108A
Cited
EP0021643A1
Cited
US4369330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |