US4560460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the galvanic deposition of metal
Assignee: Bayer Pharma AG
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Filing: 1984-05-11
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Granted: 1985-12-24
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Expires: 2004-05-11
Abstract
Abstract An arrangement is disclosed for the galvanic deposition of metal at relatively greater speed and with controllable layer-thickness distribution, of the type composed of an electrolysis tank with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system means and dosaging system means as well as electrical appurtenances, wherein a cathodically-connected work piece to be galvanized is arranged between two nozzles which are each formed from two chambers located one above the other and having separate entrance and exitways, the upper chamber contains an electrolyte exit opening provided as a longitudinal slit and the lower chamber defines an anode niche displaying at the height of the slit a vertically-adjustable opening. Also disclosed is a method for the electrolytical deposition of metal, employing substantially the above described arrangement and particularly for depositing nickel- or gold-coatings on plug contacts of printed circuits.
Inventors
- 👤 Horst Blasing
- 👤 Manfred Kallweit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:42
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/241; C; C25; C25D; C25D5/00; C25D5/02; C25D5/08; C25D5/60; C25D5/623
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
131 words
Arrangement for the galvanic deposition of metal, of the type having an electrolysis tub with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system and dosaging system as well as electrical appurtenances, wherein a cathodically-connected and to be galvanized work piece is disposed between two nozzles, each said nozzle being formed from two chambers located one above the other and with separate outlets and entrances, an upper of said chambers contains an electrolyte exit-opening in the form of a slit, and a lower of said chambers comprises a shaft-shaped construction for the purpose of projecting thereinto the chamber applied insulated anodes, and is provided with an anode niche, said anode niche defining at the height of said slit a vertically-adjusted opening having a cross-section from 300 to 2500 mm 2 .
Claim 2
Dependent Claim
131 words
Arrangement for the galvanic deposition of metal, of the type having an electrolysis tub with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system and dosaging system as well as electrical appurtenances, wherein a cathodically-connected and to be galvanized work piece is disposed between two nozzles, each said nozzle being formed from two chambers located one above the other and with separate outlets and entrances, an upper of said chambers contains an electrolyte exit-opening in the form of a slit, and a lower of said chambers comprises a shaft-shaped construction for the purpose of projecting thereinto the chamber applied insulated anodes, and is provided with an anode niche, said anode niche defining at the height of said slit a vertically-adjusted opening having a cross-section from 300 to 2500 mm 2 .
Claim 3
Dependent Claim
12 words
Arrangement according to claim 1, wherein said nozzles are disposed vertically adjustable.
Claim 4
Dependent Claim
18 words
Arrangement according to claim 1, wherein the exit openings of said nozzles are located close to work piece.
Claim 5
Dependent Claim
19 words
Arrangement according to claim 1, defining between said work piece and said nozzles a distance of about 10 mm.
Claim 6
Dependent Claim
24 words
Arrangement according to claim 1, said exit openof said upper chamber is directed at an acute angle to a surface of said work piece.
Claim 7
Dependent Claim
21 words
Arrangement according to claim 1, further comprising means for transporting said work piece in a longitudinal direction through said electrolysis tank.
Claim 8
Dependent Claim
135 words
Arrangement for the galvanic deposition of plug contacts of conductor plates, of the type having an electrolysis tub with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system and dosaging system as well as electrical appurtenances, wherein a cathodically-connected and to be galvanized work piece is disposed between two nozzles, each said nozzle being formed from two chambers located one above the other and with separate outlets and entrances, an upper of said chambers contains an electrolyte exit-opening in the form of a slit, and a lower of said chambers comprises a shaft-shaped construction for the purpose of projecting thereinto the chamber applied insulated anodes, and is provided with an anode niche, said anode niche defining at the height of said slit a vertically-adjusted opening having a cross-section from 300 to 2500 mm 2 .
Claim 9
Dependent Claim
135 words
Arrangement for the galvanic deposition of plug contacts of conductor plates, of the type having an electrolysis tub with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system and dosaging system as well as electrical appurtenances, wherein a cathodically-connected and to be galvanized work piece is disposed between two nozzles, each said nozzle being formed from two chambers located one above the other and with separate outlets and entrances, an upper of said chambers contains an electrolyte exit-opening in the form of a slit, and a lower of said chambers comprises a shaft-shaped construction for the purpose of projecting thereinto the chamber applied insulated anodes, and is provided with an anode niche, said anode niche defining at the height of said slit a vertically-adjusted opening having a cross-section from 300 to 2500 mm 2 .
Claim 10
Dependent Claim
18 words
Arrangement according to claim 7, wherein a current density from about 20 to 60 A/dm 2 is employed.
Claim 11
Dependent Claim
17 words
Arrangement according to claim 7, wherein an electrolyte flow velocity is from about 1 to 3 m/S.
Claim 12
Dependent Claim
19 words
Arrangement according to claim 7, wherein an electrolyte is introduced at an excess pressure from 0.8 to 1.0 bar.
Claim 13
Dependent Claim
139 words
Arrangement for the galvanic deposition of nickel- or gold-coatings onto plug contacts of conductor plates, of the type having an electrolysis tub with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system and dosaging system as well as electrical appurtenances, wherein a cathodically-connected and to be galvanized work piece is disposed between two nozzles, each said nozzle being formed from two chambers located one above the other and with separate outlets and entrances, an upper of said chambers contains an electrolyte exit-opening in the form of a slit, and a lower of said chambers comprises a shaft-shaped construction for the purpose of projecting thereinto the chamber applied insulated anodes, and is provided with an anode niche, said anode niche defining at the height of said slit a vertically-adjusted opening having a cross-section from 300 to 2500 mm 2 .
Claim 14
Dependent Claim
139 words
Arrangement for the galvanic deposition of nickel- or gold-coatings onto plug contacts of conductor plates, of the type having an electrolysis tub with overflow, electrodes, nozzles, connecting conduit tubes, pumps, control system and dosaging system as well as electrical appurtenances, wherein a cathodically-connected and to be galvanized work piece is disposed between two nozzles, each said nozzle being formed from two chambers located one above the other and with separate outlets and entrances, an upper of said chambers contains an electrolyte exit-opening in the form of a slit, and a lower of said chambers comprises a shaft-shaped construction for the purpose of projecting thereinto the chamber applied insulated anodes, and is provided with an anode niche, said anode niche defining at the height of said slit a vertically-adjusted opening having a cross-section from 300 to 2500 mm 2 .
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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) | 1988-12-23 | 1989-06-24 | 1989-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-23 | 1993-06-24 | 1993-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-23 | 1997-06-24 | 1997-12-24 | $7700.00 | Window Closed / Lapsed |