US5585669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor chip card having selective encapsulation
Assignee: De la Rue Cartes et Systemes SAS
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Filing: 1995-05-18
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Granted: 1996-12-17
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Expires: 2015-05-18
Abstract
Abstract A chip card including a card base with a recess. A circuit support and a microcircuit is arranged on a circuit support surface which faces an interior of the recess and is spaced from the recess bottom. A raised portion is formed on the recess bottom and spaced from a cover section so as to divide the recess into two regions bounded by the recess bottom, the cover section and the raised portion. The first region is completely filled with an encapsulant and the second region is partly filled with the encapsulant.
Inventors
- 👤 Jacques Venambre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:20
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07745; H; H10; H10W; H10W72/00; H10W72/851; H10W72/874; H10W72/884; H10W90/00; H10W90/701; H10W90/751; H10W90/754; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121; Y10T29/49124
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
149 words
A chip card comprising a card base having a recess in which a cover section is secured, which cover section comprises a circuit support and at least one microcircuit arranged on a lower surface of the circuit support, which lower surface faces the interior of the recess and is spaced from the inner surface of the bottom of the recess, wherein the inner surface of the bottom of the recess comprises a raised portion which is spaced from the cover section over at least a part of its circumference, said raised portion surrounds a first part of said inner surface and is itself surrounded by a second part of said inner surface, a first volume situated between said first part and the cover section being completely filled with an encapsulant and a second volume situated between said second part and the cover section being partly filled with said encapsulant.
Claim 2
Dependent Claim
149 words
A chip card comprising a card base having a recess in which a cover section is secured, which cover section comprises a circuit support and at least one microcircuit arranged on a lower surface of the circuit support, which lower surface faces the interior of the recess and is spaced from the inner surface of the bottom of the recess, wherein the inner surface of the bottom of the recess comprises a raised portion which is spaced from the cover section over at least a part of its circumference, said raised portion surrounds a first part of said inner surface and is itself surrounded by a second part of said inner surface, a first volume situated between said first part and the cover section being completely filled with an encapsulant and a second volume situated between said second part and the cover section being partly filled with said encapsulant.
Claim 3
Dependent Claim
42 words
A chip card as claimed in claim 1, said first part (7) extends at least up to a location above which the circuit support carries solder points (33) for the electrical connection wires between the circuit (30) and the circuit support (21).
Claim 4
Dependent Claim
29 words
A chip card as claimed in claim 1, characterised in that said encapsulant (36) which partly fills the second volume (V' 2 ) wholly covers said second part (8).
Claim 5
Dependent Claim
17 words
A chip card as claimed in claim 1, characterised in that said raised portion (11) is annular.
Claim 6
Dependent Claim
19 words
A chip card as claimed in claim 1, characterised in that said raised portion (11) is of triangular cross-section.
Claim 7
Dependent Claim
20 words
A chip card as claimed in claim 1, characterised in that said first part (7) comprises anchor elements (40, 41).
Claim 8
Dependent Claim
19 words
A chip card as claimed in claim 1, characterised in that said raised portion (11) forms a closed figure.
Claim 9
Dependent Claim
27 words
A chip card as claimed in claim 2 wherein said encapsulant (36) which partly fills the second volume (V' 2 ) wholly covers said second part (8).
Claim 10
Dependent Claim
15 words
A chip card as claimed in claim 2 wherein said raised portion (11) is annular.
Claim 11
Dependent Claim
15 words
A chip card as claimed in claim 3 wherein said raised portion (11) is annular.
Claim 12
Dependent Claim
17 words
A chip card as claimed in claim 2 wherein said raised portion (11) is of triangular cross-section.
Claim 13
Dependent Claim
17 words
A chip card as claimed in claim 3 wherein said raised portion (11) is of triangular cross-section.
Claim 14
Dependent Claim
17 words
A chip card as claimed in claim 4 wherein said raised portion (11) is of triangular cross-section.
Claim 15
Dependent Claim
18 words
A chip card as claimed in claim 2 wherein said first part (7) comprises anchor elements (40, 41).
Claim 16
Dependent Claim
18 words
A chip card as claimed in claim 3 wherein said first part (7) comprises anchor elements (40, 41).
Claim 17
Dependent Claim
18 words
A chip card as claimed in claim 4 wherein said first part (7) comprises anchor elements (40, 41).
Claim 18
Dependent Claim
18 words
A chip card as claimed in claim 5 wherein said first part (7) comprises anchor elements (40, 41).
Claim 19
Dependent Claim
17 words
A chip card as claimed in claim 2 wherein said raised portion (11) forms a closed figure.
Claim 20
Dependent Claim
17 words
A chip card as claimed in claim 3 wherein said raised portion (11) forms a closed figure.
Claim 21
Dependent Claim
17 words
A chip card as claimed in claim 4 wherein said raised portion (11) forms a closed figure.
Claim 22
Dependent Claim
17 words
A chip card as claimed in claim 5 wherein said raised portion (11) forms a closed figure.
Claim 23
Dependent Claim
17 words
A chip card as claimed in claim 6 wherein said raised portion (11) forms a closed figure.
Claim 24
Dependent Claim
146 words
A chip card comprising a card base having a recess, said recess having a recess bottom, a cover section secured in said recess, a circuit support and at least one microcircuit arranged on a surface of the circuit support which faces an interior of the recess and is spaced from the recess bottom, a raised portion formed on the recess bottom and spaced from the cover section over at least a part of its circumference, said raised portion dividing said recess into at least a first region bounded in part by a first portion of the recess bottom, said cover section and said raised portion and a second region bounded in part by a second portion of the recess bottom, said cover section and said raised portion, the first region being completely filled with an encapsulant and said second region being partly filled with said encapsulant.
Claim 25
Dependent Claim
146 words
A chip card comprising a card base having a recess, said recess having a recess bottom, a cover section secured in said recess, a circuit support and at least one microcircuit arranged on a surface of the circuit support which faces an interior of the recess and is spaced from the recess bottom, a raised portion formed on the recess bottom and spaced from the cover section over at least a part of its circumference, said raised portion dividing said recess into at least a first region bounded in part by a first portion of the recess bottom, said cover section and said raised portion and a second region bounded in part by a second portion of the recess bottom, said cover section and said raised portion, the first region being completely filled with an encapsulant and said second region being partly filled with said encapsulant.
Claim 26
Dependent Claim
33 words
The chip card as claimed in claim 23, and including wires, disposed in said first region, for electrically connecting said microcircuit and said circuit support, said wires being wholly encapsulated by said encapsulant.
Claim 27
Dependent Claim
23 words
The chip card as claimed in claim 23, wherein said microcircuit is disposed in said first region and wholly encapsulated by said encapsulant.
References Cited (Backward Citations)
JPS5559745A
Cited
US4483067A
Cited
US4649418A
Cited
FR2580416A1
Cited
US4701236A
Cited
FR2583574A1
Cited
FR2617668A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-17 | 2000-06-17 | 2000-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-17 | 2004-06-17 | 2004-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-17 | 2008-06-17 | 2008-12-17 | $7700.00 | Window Closed / Lapsed |