Patent US3727172A successfully refreshed from Google Patents.
Patent US3670394A successfully refreshed from Google Patents.
US3670394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of connecting metal contact areas of electric components to metal conductors of flexible substrate
Assignee: US Philips Corp
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Filing: 1970-11-03
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Granted: 1972-06-20
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Expires: 1990-11-03
Abstract
Abstract The metal contact areas of electric components, for example, semiconductor bodies, are connected to metal conductors of a flexible substrate by orienting the contact areas relative to the conductors, pressing the contact areas and the conductors against each other, temporarily reinforcing the flexible substrate by causing projections of a pressure member to penetrate into the foil as a result of ultrasonic vibrations, and subsequently ultrasonically welding the contact areas to the conductors of the flexible substrate.
Inventors
- 👤 Hendricus Petrus Corne Daniels
- 👤 Theodorus Johannes Van Der Ven
- 👤 Hans Gerard Karel Tates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:27
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/328; H05K2201/00; H05K2201/10; H05K2201/10613; H05K2201/10621; H05K2201/10719; H05K2203/00; H05K2203/02; H05K2203/0285; H10; H10W; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07232; H10W72/07233; H10W72/07236
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
136 words
A method of connecting metal contact areas of electric components to metal conductors of a flexible substrate wherein the electric component is oriented relative to the flexible substrate in such manner that the contact areas are situated opposite to the cooperating conductors, the conductors of the flexible substrate and the contact areas of the electric components are pressed against each other between pressure members, the pressure member for the flexible substrate comprising a homogeneous pattern of projections, one of the two pressure members is then vibrated ultrasonically as a result of which the projections pressing against the flexible substrate penetrate into said substrate, so that the foil at that area is temporarily reinforced, after which, as a result of the ultrasonic vibration, the contact areas and the conductors rub over each other and are welded together.
Claim 2
Independent Claim
136 words
A method of connecting metal contact areas of electric components to metal conductors of a flexible substrate wherein the electric component is oriented relative to the flexible substrate in such manner that the contact areas are situated opposite to the cooperating conductors, the conductors of the flexible substrate and the contact areas of the electric components are pressed against each other between pressure members, the pressure member for the flexible substrate comprising a homogeneous pattern of projections, one of the two pressure members is then vibrated ultrasonically as a result of which the projections pressing against the flexible substrate penetrate into said substrate, so that the foil at that area is temporarily reinforced, after which, as a result of the ultrasonic vibration, the contact areas and the conductors rub over each other and are welded together.
Claim 3
Dependent Claim
49 words
A method as claimed in claim 1, characterized in that prior to orienting the flexible substrate relative to the electric component, the flexible substrate is pressed against the pressure member which is provided with a homogeneous pattern of projections, the projections penetrating at least already partly into the substrate.
Claim 4
Dependent Claim
31 words
A method as claimed in claim 1, characterized in that the projections are provided at such a pitch that at least three projections are always present opposite to a contact area.
Claim 5
Dependent Claim
25 words
A method as claimed in claim 2, characterized in that the projections are formed as pyramids the bases of which are situated against each other.
Claim 6
Dependent Claim
28 words
A method as claimed in claim 2, characterized in that the projections are formed as pyramids, the bases of which are situated at some distance from each other.
References Cited (Backward Citations)
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Cited
US2922554A
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US2926906A
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US3047942A
Cited
US3561107A
Cited
US3589000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |