US3900383A - Apparatus for electroplating - Google Patents

Apparatus for electroplating Download PDF

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Publication number
US3900383A
US3900383A US491377A US49137774A US3900383A US 3900383 A US3900383 A US 3900383A US 491377 A US491377 A US 491377A US 49137774 A US49137774 A US 49137774A US 3900383 A US3900383 A US 3900383A
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US
United States
Prior art keywords
shaft
electrically conductive
roll
cylinder
electrical contact
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 - Lifetime
Application number
US491377A
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English (en)
Inventor
Lowell W Austin
Walter Alexander Wilson
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.)
National Steel Corp
Original Assignee
National Steel Corp
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 National Steel Corp filed Critical National Steel Corp
Priority to US491377A priority Critical patent/US3900383A/en
Priority to GB18154/75A priority patent/GB1502878A/en
Priority to AU80916/75A priority patent/AU491438B2/en
Priority to CA227,438A priority patent/CA1049955A/en
Priority to DE19752526006 priority patent/DE2526006A1/de
Priority to IT50039/75A priority patent/IT1036983B/it
Priority to JP50077087A priority patent/JPS5120034A/ja
Priority to FR7519787A priority patent/FR2279864A1/fr
Application granted granted Critical
Publication of US3900383A publication Critical patent/US3900383A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C25D7/0657—Conducting rolls

Definitions

  • a commutator connects the segments consecutively to a source of electrical potential in a manner such that only segments of the roll which are entirely in contact with the strip are feeding current to the strip.
  • the present invention relates it the field of clectio plating or electrodepositing.
  • the invention relates to electroplating tin: .iui'lltce of an electrically conductive strip or web ol material
  • the invention relates to the use of an electroplating drum or roll in an electroplating opcr ation.
  • the invention relates to electroplating a surfacr of a strip of electrically conductive material passed around an clcc ro 'ilating roll with the strip of material in contact with the roll suh merged in an electrolytic solution during the period of electroplating.
  • the cylindrical roll is rotated, moving the strip around the roll as electrical current is passed from an insoluble anode in the electrolytic bath through the electrolytic bath and the strip to the electrically conductive circumferential ring on the roll. thereby causing deposition from the clcctro lyte onto the surface of the strip exposed to the electrolyte.
  • Objtl'tfl of this invention to provide a method for electroplating a strip or welt uf electri cally conductive material by which arcing of the strip and consequent burning ol'the strip can he made negli gible.
  • FIG. 1 is a perspective view of an electroplating apparatus incorporating the present invention
  • FIG. 2 is a schematic view in section taken on the line 2 of FIG. 1;
  • FIG. 3 is a schematic view in section taken on the line 3--3 of FIG. 1;
  • FIG. 4 is a schematic representation of an apparatus of FIGS. 3 and 4 showing a split commutator brush joined electrically to a split anode;
  • FIG. 5 is a schematic representation of electroplating apparatus in accordance with this invention arranged in series so that both sides of the strip can be plated in continuous operation, and
  • FIG. 6 is a perspective view of a preferred embodiment of the electroplating roll structure shown schematically in the precceding figures.
  • an electrically conductive strip 1 is passed across a directing roll 3 and thence around a conductive electroplating roll indicated generally at 5 partially submerged in ah electrolytic solution 9 in a bath tank 7 for containing the electrolyte solution, and thence around second directing roll II.
  • the directing rolls 3, 11 are aligned with the electroplating conductive roll 5 so that the strip 1 is maintained against the circumferential surface of the conductive electroplating roll 5 rotating in a clockwise direction.
  • the electrolyte solution 9 is in contact with the side it) of the strip I that is away from the conductive electroplating roll (FIG. 5).
  • an insoluble anode 13 within the electrolytic bath 9 in a position sufficiently removed from strip to prevent direct contact with the strip 1 passing around the electroplating roll 5 is an insoluble anode 13.
  • this anode means will have a configuration that conforms to the surface contours of the electroplating mil 5 so that the anode means can be described generaliy as a hollow cylindrical shape with diameter sufficiently larger than the electroplating roll 5 t0 accomodate the electroplating roll and the strip being plated within its cylindrical are without direct contact between the surface of the anode and the near adjacent surface of the strip.
  • the electrolyte solution 9 within the bath tank 7 is in contact with the surface of the an de 13 so that the passage of electrical current from the anode I ⁇ through the electrolyte 7, through the stri 1 being treated. and to the discontinuous conductive ring formed the electrically conductive segi icnts E5 of the electroplating roll will cause deposition of metal from the electrolyte onto the surface of the strip with which the electrolyte is in contact.
  • the electrically conductive roll designed for use in this invention is schematically illustrated in FIG. 1 as an elongated cylinder composed of electrically conductive segmental elements 15 spaced in side-by-side circumferential arrangement to form the major portion of the cylindrical surface of the roll and insulated each from the other by electrically nonconductive members 17 which join together to form a core carried by a shaft 18 (FIG. 2).
  • Electrically conductive elements 15 are individually connected to a means by which the flow of current through each member can be selectively controlled.
  • the connecting means are shown as electrically conductive members 19 forming part of a drive shaft indicated generally at 21. These conductive members 19 are spaced each from the other and can be insulated from one another by electrically nonconductive members 23 forming part of the drive shaft 21.
  • This shaft is connected in turn to a commutator roll indicated generally at 25 which is also divided into electrically conductive elements 27 insulated each from the other by electrically nonconductive members 29 which join together to form a core carried by a shaft 30 (FIG. 3).
  • the electroplating roll 5 the connecting shaft 21 and the commutator roll 25 each contains electrically conductive elements spaced around a cylindrical insulating core and electrically insulated each from the other to form in the cases of roll and roll 25 a segmented electrically conductive ring.
  • insulation may cover the electrically conductive elements of connecting shaft 21.
  • This shaft passes through an electrolyte retainer 37 with either the shaft rotating relative to the retainer or the retainer rotating relative to bath tank 7.
  • the discontinuous commutator ring formed by the electrically conductive elements 27 of the commutator roll 25 is connected through a brush member 33 into an electrical circuit 34 including a source of electrical potential 35 and anode 13 in the bath tank 7.
  • the electrical connection between brush member 33 and the electrically conductive ring of the commutator is so arranged that only a predetermined number of the electrically conductive members 27 are energized at any one time.
  • shaft 21 causes commutator roll 25 to be rotated and electrically conductive elements 27 of the commutator roll 25 are energized and then de-energized as the elements pass in contact with the brush of the commutator. This causes current flow through the corresponding electrically conductive elements 19 and of the shaft and electroplating roll, respectively.
  • segmented electroplating roll 5 Basic to the electroplating apparatus and method of this invention is the segmented electroplating roll 5 as schematically illustrated in FIG. I and as described above.
  • the provision of the electrically conductive segmented ring at the roll surface permits control, hitherto unknown in the art, of the area of electrical contact between the strip being plated and the surface of the electroplating roll.
  • the electroplating roll 5 can have its surface divided into any number of electrically conductive elements 15 with four conductive members being the minimum efficiently operating number. It can readily be seen that the greater the number of conductive members, up to the number where practicality is the limit. the greater the control that can be exercised over the portion of the surface of the roller through which electrical current is passed. For reasons of practicality, the number of conductive segments will generally be between four and twelve.
  • FIGS. 2 and 3 of the drawing an operation of electroplating one face of a strip by the process of this invention can be described.
  • the strip of material I is passed around a portion of the circumferential face of electroplating roll 5.
  • the electroplating roll as shown in this view has its eight electrically conductive elements identified separately as 15A through 151-1 for better elaborating on the method of using the apparatus.
  • the drive shaft 21 has its eight electrically conductive members elements separately identified as 19A through 19H. Each of the electrically conductive elements 19 of the drive shaft is aligned to connect with an electrically conductive element 15 of the electroplating roll.
  • FIG. 1 the strip of material I is passed around a portion of the circumferential face of electroplating roll 5.
  • the electroplating roll as shown in this view has its eight electrically conductive elements identified separately as 15A through 151-1 for better elaborating on the method of using the apparatus.
  • the drive shaft 21 has its eight electrically conductive members elements separately identified as 19A through 19H. Each of
  • the commutator roll 25 has its eight electrically conductive elements separately identified as 27A through 27H, each aligned with a conductive ele' ment 19 of the drive shaft so that in FIGS. 2 and 3 electrically conductive elements ISA of the electroplating roll, 19A of the drive shaft, and 27A of the commutator roll form a continuous electrical conductor or conductive element.
  • each of the elements marked B through H are connected to form continuous electrical conductors comprising a conductive element of the electroplating roll, a conductive element of the drive shaft and a conductive element of the commutator roll.
  • a strip 1 is passed around the circumferential face of electroplating roll 5 so that the initial point of contact 6 between the roll 5 and the strip 1 can be in the neighborhood of but preferably at or above the surface 37 of the electrolyte solution 9 contained in the electrolytic bath '7.
  • Electrolyte 9 is supplied through conduit 45 and withdrawn through conduit 46 to maintain the level within the bath and also to maintain the desired temperature within the bath.
  • the commutator roll 25, the same drive shaft 21 and the electroplating roll 5 rotate synchronously so that the electric current can be caused to flow successively through electrically conductive elements of the electroplating roll 5, the drive shaft 21 and the commutator roll 25.
  • AS can be seen in FIG. 3 with the commutator brush 33 positioned so that electrical contact is established between electrically conductive elements 27G and 27H and the correspondingly numbered electrically conductive elements of shaft 21 and electroplating roll 156 and 15H, a clockwise rotation of the roll will establish electrical contact between the commutator brush and electrically conductive element 27A soon after the corresponding electroplating electrically conductive element 15A is submerged in the electrolyte 9.
  • split commutator brush 33 or other control means by which the flow of current can be increased and de creased through certain conductive members of the electroplating process.
  • FIG. 4 illustrates a split commutator brush 33.
  • commutator member 27A rotates clockwise into successive contact with members 33A, 33B and 33C of the brush having each of these brush members connected individually through controlled electrical sources 35A. 35B, 35C, to corresponding members of a split anode 13A, 13B and 13C. current of differing intensities are passed through the aligned members.
  • the plating current can be made progressively greater through each successive member of the brush 33A-33C or the current of great est intensity can be that applied as the strip is at the midpoint of travel through the plating bath (in electrical connection with 33B).
  • the sizing and spacing of the conducting portions of the brush can also be advantageously varied causing the current flow to fluctuate in any conductive element of the roll 5 as contact between the commutator roll elements and any conductive element of the brush is made or broken. Referring to FIG. 4, as the conductive elements move clockwise, there will be an interval in which both 27H and 27A are in contact with 33A and 27H is also in contact with 338.
  • FIG. 5 a two step system is illustrated with a strip 1 being passed around two electroplating rolls 5, 5 of this invention in series so that both sides l0, 10 of the strip 1 can be electroplated.
  • the system illustrated involves the use of two electroplating rolls 5, S as described above so arranged that a continuous strip 1 of material is passed around the electroplating roll 5 and then a second roll 5 in series, with the electroplating roll rolls 5, 5 operated to rotate in opposite directions.
  • the illustrated counter rotation arrangement is most practically arranged with one electroplating bath 7 located above the other with the electrically conductive web 1 passed around suitable intervening rolls 39, 4] which permit the spacing necessary to cause the side 10 of strip 1 left unplated in passage around roll 5 to be in contact with the electrolyte 9 in passage around roll 5.
  • Means for completing the electrical circuit through the roll system can be made a part of a drive shaft as illustrated in FIG. 1.
  • a preferred embodiment of the roll system of the present invention is illustrated in FIG. 6 in which like elements are numbered as in FIG. 1 but primed.
  • the electrically nonconductive drive shaft 21' is surrounded by rigid electrically conductive rods 19' equal in number to the number of electrically conductive segmental elements 15' of the electroplating roll 5'.
  • Each conductive rod 19 is attached at one end to one conductive element 15' of the electroplating roller 5' and attached at the other end to one electrically conductive element 27" of the commutator roller 25.
  • the seal can be formed from a round disc 52 of electrically nonconductive material, inert to the electrolyte. which is sufficiently greater in diameter than the distance of the conductive rods 19 from the center of the drive shaft 21 so that the conductive rods 19 are insulated from contact with the electrolytic bath tank 7 and the material of the sealing member forms a liquid tight seal with the connecting rods 19' and shaft 2]"
  • the seal can be suitably grooved at 54 to maintain rotating, sealing contact with the wall of the electrolytic bath tank 7 to prevent flow of electrolyte 9 from bath tank 7.
  • the seal can or need not be formed of a material of sufficient strength to bear part of the weight of the electroplating roll apparatus, bearings, not shown, being supplied for the shaft 21' in any case.
  • Such a sealing member is similar to that required for passing the drive shaft 2] alone, as shown in FIG. 1, through the wall of the electrolytic bath tank 7.
  • the roll system of the embodiment illustrated in FIG. 6 is formed by taking a steel shaft 21 and mounting on it cylindrical insulating core members 17 and 29 which have channels machined in them to receive electrical conductive segmental elements 15 and 27'. These electrically conductive elements are firmly affixed in place in the channels by any suitable means with their outer surfaces forming part of the overall cylindrical surfaces of roll 5' and commutator member 25'.
  • core member 17' entirely encloses the inner sides of conductive elements 15 over that portion of the roll S-5 which contacts the strip, leaving exposed to the electrolyte bath only the cylindrical surface of each conductive element in that portion of the roll surface which contacts the strip, herein termed the effective portion of the roll surface.
  • conductive rods 19' and nonconductive sealing disc 50 are asembled on and around shaft 2].
  • the entire assemblage is then brought together with conductive elements l5 and 27' snugly receiving the ends of conductive rods 19' in electrically conducting relationship.
  • each conductive element 27', associated rod 19' and associated conductive member 15' together form a continuous electrically conductive structure for supplying current for carrying out the desired plating operation.
  • FIGS. 1-3 like that of FIG. 6, can be considered as having two cores made up of nonconductive members 17 and 29 with their internal connecting structure carried by a shaft which extends between the cores and in the FIGS. 1-3 embodiment carries connecting electrically conductive members 19 and nonconductive members 23.
  • An electroplating apparatus comprising a. bath container means including walls for holding an electrolyte,
  • an electroplating contact roll for passing conduc tive strip to be plated through the bath carried by the shaft and partially submerged in the electrolyte, the contact roll including a core member and a plurality of circumferentially spaced, electrically conductive segmental elements, elongated in the direction of the longitudinal axis of the shaft, affixed to the core member, the outermost surfaces of the plurality of segmental elements relative to the longitudinal axis of the shaft being of substantial area and falling in a cylinder having the longitudinal axis of the shaft as its center line,
  • means (f) comprise g. a second core member formed of electrically nonconductive material affixed to and surrounding the said one end portion of the shaft,
  • the brush means of limitation (l) comprise m. a plurality of electrically conductive segments insulated from one another and disposed in circum ferentially spaced relation in respect to the second cylinder and having areas of electrical contact complementary in shape to and coinciding with the second cylinder, and separate electric circuit means connections for each segment of the brush means.
  • the structure of claim 1 in which the nonconductive material of the core member in the effective portion of the roll extends between and separates opposed surfaces of adjacent electrically conductive segmental elements, the outermost surface of the nonconductive material of the core member relative to the longitudinal axis of the shaft falling substantially in said cylinder. 8.
  • the structure of claim 2 in which j.
  • the nonconductive material of the first claimed core member in the effective portion of the roll extends between and separates opposed surfaces of adjacent first claimed electrically conductive segmental elements, the outermost surfaces of the nonconductive material of the first claimed core member relative to the longitudinal axis of the shaft falling substantially in said cylinder.
  • electrically conductive brush means for supplying electric current to the second segmental elements having an electrical contact area complementary in shape to and coinciding with the second cylinder, make simultaneous electrical contact with a plurality of adjacent second segmental elements in num ber such that less than one half the total number of second segmental elements are in electrical contact with the brush means at any one time during revolution of the structure about the longitudinal axis of the shaft.
  • the brush means of limitation (k) comprise l. a plurality of electrically conductive segments insulated from one another and disposed in circumferentially spaced relation in respect to the second cylinder and having areas of electrical contact 6O complementary in shape to and coinciding with the second cylinder, and m. separate electric circuit means connections for each segment of the brush means.
  • k electrically conductive brush means for supplying electric current to the second segmental elements.
  • the brush means of limitation (k) comprise l. a plurality of electrically conductive segments insulated from one another and disposed in circumferentially spaced relation in respect to the second cylinder and having areas of electrical contact complementary in shape to and coinciding with the second cylinder, and
  • electrically conductive brush means for supplying electric current to the second segmental elements having an electrical contact area complementary in shape to and coinciding with the second cylinder, make simultaneous electrical contact with a plurality of adjacent second segmental elements in number such that less than one half the total number of second segmental elements are in electrical contact with the brush means at any one time during revolution of the structure about the longitudinal axis of the shaft.
  • the brush means of limitation (j) comprise k. a plurality of electrically conductive segments insulated from one another and disposed in circumferentially spaced relation in respect to the second cylinder and having areas of electrical contact complementary in shape to and coinciding with the second cylinder, and

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
US491377A 1974-07-24 1974-07-24 Apparatus for electroplating Expired - Lifetime US3900383A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US491377A US3900383A (en) 1974-07-24 1974-07-24 Apparatus for electroplating
GB18154/75A GB1502878A (en) 1974-07-24 1975-05-01 Apparatus and method for electroplating
AU80916/75A AU491438B2 (en) 1974-07-24 1975-05-07 Apparatus for electroplating
CA227,438A CA1049955A (en) 1974-07-24 1975-05-21 Apparatus and method for electroplating
DE19752526006 DE2526006A1 (de) 1974-07-24 1975-06-11 Verfahren und vorrichtung zum elektroplattieren
IT50039/75A IT1036983B (it) 1974-07-24 1975-06-12 Dispositivo e procedimento per eseguire placcatura per via elettrolitica
JP50077087A JPS5120034A (en) 1974-07-24 1975-06-24 Denkimetsukihoho oyobi sochi
FR7519787A FR2279864A1 (fr) 1974-07-24 1975-06-24 Procede et appareil d'electrodeposition par utilisation d'un rouleau de contact a segments conducteurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US491377A US3900383A (en) 1974-07-24 1974-07-24 Apparatus for electroplating

Publications (1)

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US3900383A true US3900383A (en) 1975-08-19

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US491377A Expired - Lifetime US3900383A (en) 1974-07-24 1974-07-24 Apparatus for electroplating

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US (1) US3900383A (https=)
JP (1) JPS5120034A (https=)
CA (1) CA1049955A (https=)
DE (1) DE2526006A1 (https=)
FR (1) FR2279864A1 (https=)
GB (1) GB1502878A (https=)
IT (1) IT1036983B (https=)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119515A (en) * 1977-03-28 1978-10-10 National Steel Corporation Apparatus for electroplating sheet metals
US4385977A (en) * 1981-11-25 1983-05-31 Masami Kobayashi Apparatus for electroplating a metal wire of relatively low electric conductivity
EP0125707A1 (en) * 1983-03-16 1984-11-21 Hoogovens Groep B.V. Method and apparatus for unilateral electroplating of a moving metal strip
US4662997A (en) * 1986-04-25 1987-05-05 Hirt Theodore A Method and apparatus for energizing metallic strip for plating
EP0254703A1 (fr) * 1986-07-17 1988-01-27 DELLOYE-MATTHIEU, Société Anonyme des Tôleries Procédé et installation d'électrozingage d'une bande d'acier
EP0264510A1 (fr) * 1986-10-20 1988-04-27 Clecim Sa Procédé et installation de traitement électrolytique d'une bande métallique
EP0250195A3 (en) * 1986-06-20 1988-08-31 Gould Inc. Double matte finish copper foil
WO1991014026A1 (de) * 1990-03-08 1991-09-19 Heraeus Elektrochemie Gmbh Elektrolysezelle zur elektrolytischen behandlung von prozessflüssigkeit
FR2686623A1 (fr) * 1992-01-24 1993-07-30 Lorraine Laminage Procede d'electrodeposition d'un revetement sur une bande metallique en defilement, rouleau pour ligne d'electrodeposition mettant en óoeuvre ce procede et cellule electrolytique incluant ce rouleau.
EP0608616A1 (en) * 1992-12-07 1994-08-03 Ebara-Udylite Co, Ltd. Electroplating apparatus
US5618391A (en) * 1992-10-31 1997-04-08 May; Hans J. Device for electrolytically coating one side of metal strips
US20060137987A1 (en) * 2004-12-27 2006-06-29 Dowa Mining Co., Ltd. Plating device and plating method
WO2009089820A3 (de) * 2008-01-16 2009-10-15 Manfred Danziger Bandgalvanikanlage zur elektrochemischen verstärkung einer elektrisch leitfähigen äusseren schicht eines bandes
US20110073481A1 (en) * 2009-09-30 2011-03-31 National Semiconductor Corporation Foil plating for semiconductor packaging
CN112095130A (zh) * 2020-08-23 2020-12-18 深圳市崇辉表面技术开发有限公司 卷对卷式连续电镀导电装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019021A (ja) * 1983-07-12 1985-01-31 Kanebo Ltd 気体乾燥装置
DE4413149A1 (de) * 1994-04-15 1995-10-19 Schmid Gmbh & Co Geb Einrichtung zur Behandlung von Gegenständen, insbesondere Galvanisiereinrichtung für Leiterplatten
JP6119722B2 (ja) * 2014-11-21 2017-04-26 Ｊｆｅスチール株式会社 電気めっき方法、電極ロール、及び電気めっき装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432419A (en) * 1965-07-22 1969-03-11 Belke Mfg Co Variable,commutating contact electroplating barrel
US3634223A (en) * 1970-02-25 1972-01-11 United States Steel Corp Contact assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432419A (en) * 1965-07-22 1969-03-11 Belke Mfg Co Variable,commutating contact electroplating barrel
US3634223A (en) * 1970-02-25 1972-01-11 United States Steel Corp Contact assembly

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119515A (en) * 1977-03-28 1978-10-10 National Steel Corporation Apparatus for electroplating sheet metals
US4385977A (en) * 1981-11-25 1983-05-31 Masami Kobayashi Apparatus for electroplating a metal wire of relatively low electric conductivity
EP0125707A1 (en) * 1983-03-16 1984-11-21 Hoogovens Groep B.V. Method and apparatus for unilateral electroplating of a moving metal strip
US4559113A (en) * 1983-03-16 1985-12-17 Hoogovens Groep B.V. Method and apparatus for unilateral electroplating of a moving metal strip
US4662997A (en) * 1986-04-25 1987-05-05 Hirt Theodore A Method and apparatus for energizing metallic strip for plating
EP0250195A3 (en) * 1986-06-20 1988-08-31 Gould Inc. Double matte finish copper foil
EP0254703A1 (fr) * 1986-07-17 1988-01-27 DELLOYE-MATTHIEU, Société Anonyme des Tôleries Procédé et installation d'électrozingage d'une bande d'acier
EP0264510A1 (fr) * 1986-10-20 1988-04-27 Clecim Sa Procédé et installation de traitement électrolytique d'une bande métallique
WO1991014026A1 (de) * 1990-03-08 1991-09-19 Heraeus Elektrochemie Gmbh Elektrolysezelle zur elektrolytischen behandlung von prozessflüssigkeit
FR2686623A1 (fr) * 1992-01-24 1993-07-30 Lorraine Laminage Procede d'electrodeposition d'un revetement sur une bande metallique en defilement, rouleau pour ligne d'electrodeposition mettant en óoeuvre ce procede et cellule electrolytique incluant ce rouleau.
US5618391A (en) * 1992-10-31 1997-04-08 May; Hans J. Device for electrolytically coating one side of metal strips
EP0608616A1 (en) * 1992-12-07 1994-08-03 Ebara-Udylite Co, Ltd. Electroplating apparatus
US5441619A (en) * 1992-12-07 1995-08-15 Ebara-Udylite Co., Ltd. Electroplating apparatus
US20060137987A1 (en) * 2004-12-27 2006-06-29 Dowa Mining Co., Ltd. Plating device and plating method
US7544274B2 (en) * 2004-12-27 2009-06-09 Dowa Metaltech Co., Ltd. Plating device and plating method
WO2009089820A3 (de) * 2008-01-16 2009-10-15 Manfred Danziger Bandgalvanikanlage zur elektrochemischen verstärkung einer elektrisch leitfähigen äusseren schicht eines bandes
US20110073481A1 (en) * 2009-09-30 2011-03-31 National Semiconductor Corporation Foil plating for semiconductor packaging
US20130026043A1 (en) * 2009-09-30 2013-01-31 Texas Instruments Incorporated Foil Plating for Semiconductor Packaging
US8377267B2 (en) * 2009-09-30 2013-02-19 National Semiconductor Corporation Foil plating for semiconductor packaging
US8747640B2 (en) * 2009-09-30 2014-06-10 Texas Instruments Incorporated Foil plating for semiconductor packaging
CN112095130A (zh) * 2020-08-23 2020-12-18 深圳市崇辉表面技术开发有限公司 卷对卷式连续电镀导电装置

Also Published As

Publication number Publication date
GB1502878A (en) 1978-03-08
JPS5120034A (en) 1976-02-17
FR2279864A1 (fr) 1976-02-20
AU8091675A (en) 1976-11-11
CA1049955A (en) 1979-03-06
DE2526006A1 (de) 1976-02-12
IT1036983B (it) 1979-10-30
FR2279864B1 (https=) 1978-09-22

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