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US4567643A
Expired / Lapsed
US
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Method of replacing an electronic component connected to conducting tracks on a support substrate
Assignee: Sintra Alcatel SA
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Filing: 1983-10-24
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Granted: 1986-02-04
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Expires: 2003-10-24
Abstract
Abstract The subject matter of the invention is a method of substituting an electronic component (A1) for an analogous component (1) connected to the conductive tracks (3) of a support substrate (2) by connection wires (4). The conductive tracks are cut beyond, relative to the component (1) to be taken out of service, the zones where the connection wires (4) are connected to the tracks, then the replacement component (A1) is placed on the upper glued face of the component (1), and is connected to the tracks by connection wires (4A) independent from the preceding wires. This invention is particularly applicable to integrated circuits and to vacuum-deposited resistive thin film circuits.
Inventors
- 👤 Jean-Paul Droguet
- 👤 Michel Vernay
- 👤 Gerard Teissier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:21
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/071; H10W72/075; H10W72/50; H10W72/541; H10W72/5449; H10W72/551; H10W72/552; H10W72/5522; H10W72/5524; H10W72/90; H10W72/931; H10W72/932; H10W90/00; H10W90/701; H10W90/751; H10W90/754; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49155; Y10T29/49156
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
107 words
A method of replacing an electronic component which is electrically connected to conducting tracks (3) of a supporting substrate by means of connecting wires (4), characterised in that it comprises the following successive steps: cutting by laser the conducting strips (3) beyond, relative to the component (1) to be taken out of service, the zones where the connecting wires (4) are attached to the tracks; applying glue on the accessible upper surface of the component (1); placing a replacement component (1A) on the component to be taken out of service; causing the glue to set by heating; interconnecting the replacement component (1A) with the conducting tracks (3).
Claim 2
Independent Claim
107 words
A method of replacing an electronic component which is electrically connected to conducting tracks (3) of a supporting substrate by means of connecting wires (4), characterised in that it comprises the following successive steps: cutting by laser the conducting strips (3) beyond, relative to the component (1) to be taken out of service, the zones where the connecting wires (4) are attached to the tracks; applying glue on the accessible upper surface of the component (1); placing a replacement component (1A) on the component to be taken out of service; causing the glue to set by heating; interconnecting the replacement component (1A) with the conducting tracks (3).
Claim 3
Dependent Claim
62 words
A method of replacing an electronic component according to claim 1, for a component having its lower surface and its upper surface at a certin given potential, characterised in that the supply track (3') for supplying the given potential is kept intact and that the replacement component (1A) is connected to this track (1) via the component (1) using a conducting glue.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |