GB1534117A - Electroplating baths - Google Patents

Electroplating baths

Info

Publication number
GB1534117A
GB1534117A GB3035277A GB3035277A GB1534117A GB 1534117 A GB1534117 A GB 1534117A GB 3035277 A GB3035277 A GB 3035277A GB 3035277 A GB3035277 A GB 3035277A GB 1534117 A GB1534117 A GB 1534117A
Authority
GB
United Kingdom
Prior art keywords
plating
function
supply unit
power
setting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3035277A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RODE KG E
Original Assignee
RODE KG E
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RODE KG E filed Critical RODE KG E
Priority to GB3035277A priority Critical patent/GB1534117A/en
Publication of GB1534117A publication Critical patent/GB1534117A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation

Abstract

1534117 Controlling electro-plating ED RODE KG 19 July 1977 30352/77 Heading C7B Cathode current density is regulated in electroplating baths by determining an auxiliary function F representing the interdependence between the plating voltage U and the plating current I, with the optimum current density J o as a parameter, by calculation and/or measurement, and, beginning from a freely selected initial value U, or I, setting the desired plating current I A or plating voltage U A , in steps by an iterative process, by setting intermediate values of U or I determined from the function F, to at least an approximation which can be determined beforehand. Preferably the function F is fed into a master computer which controls the power-supply unit in the form U=f (I) Jo or I=f* (U) Jo , and by using the function F determines the requisite intermediate value from each previous value for U or I, and sets it on the power-supply unit until UA and IA is reached.
GB3035277A 1977-07-19 1977-07-19 Electroplating baths Expired GB1534117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3035277A GB1534117A (en) 1977-07-19 1977-07-19 Electroplating baths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3035277A GB1534117A (en) 1977-07-19 1977-07-19 Electroplating baths

Publications (1)

Publication Number Publication Date
GB1534117A true GB1534117A (en) 1978-11-29

Family

ID=10306289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3035277A Expired GB1534117A (en) 1977-07-19 1977-07-19 Electroplating baths

Country Status (1)

Country Link
GB (1) GB1534117A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014023A2 (en) * 1990-03-03 1991-09-19 Heraeus Elektrochemie Gmbh Fully automatic current control system for metal depletion cells
US5605615A (en) * 1994-12-05 1997-02-25 Motorola, Inc. Method and apparatus for plating metals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014023A2 (en) * 1990-03-03 1991-09-19 Heraeus Elektrochemie Gmbh Fully automatic current control system for metal depletion cells
WO1991014023A3 (en) * 1990-03-03 1991-10-31 Heraeus Elektrochemie Fully automatic current control system for metal depletion cells
US5362369A (en) * 1990-03-03 1994-11-08 Heraeus Elektrochemie Gmbh Fully automatic current control for metal depletion cells
US5605615A (en) * 1994-12-05 1997-02-25 Motorola, Inc. Method and apparatus for plating metals

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee