WO2010133223A1 - Verfahren und vorrichtung zum elektrolytischen behandeln von hochohmigen schichten - Google Patents
Verfahren und vorrichtung zum elektrolytischen behandeln von hochohmigen schichten Download PDFInfo
- Publication number
- WO2010133223A1 WO2010133223A1 PCT/DE2010/000596 DE2010000596W WO2010133223A1 WO 2010133223 A1 WO2010133223 A1 WO 2010133223A1 DE 2010000596 W DE2010000596 W DE 2010000596W WO 2010133223 A1 WO2010133223 A1 WO 2010133223A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- transport
- goods
- good
- track
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000009713 electroplating Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000005530 etching Methods 0.000 claims abstract description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 24
- 239000000047 product Substances 0.000 claims description 13
- 238000000866 electrolytic etching Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 6
- 238000000151 deposition Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 238000005246 galvanizing Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/005—Contacting devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- 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
- C25D7/0621—In horizontal cells
-
- 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
- C25D7/0692—Regulating the thickness of the coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
Definitions
- the invention relates to the electrolytic treatment, in particular the electroplating and etching of electrically conductive layers on preferably flat material. It is particularly suitable for electroplating substrates such as circuit boards and conductor foils as sections in continuous systems or of strips of metal or metallized plastic films in systems from roll to roll. It should be deposited or etched using the highest possible current density, a uniformly thick metallic layer on the entire large surface area of the material, even if the base layer is very thin and therefore high impedance. There are already proven solutions for this.
- the object of the invention is to provide an electrical contact of flat good for
- the preferably rotating electrical contacting of the material should also be suitable for transversely to the transport direction different sized Good with thin base layers for uniform electrolytic treatment. It should be avoided in comparison to the prior art, an increased investment outlay.
- Throughput systems and systems that produce the goods from roll to roll are, because of their low flexibility with regard to the process sequences, preferably suitable for the production of mass products. These products were previously considered end products designated. These are usually small and smallest printed circuit boards or conductor foils for z. B. BGAs (Ball Grid Arrays), RFIDs (Radio Frequency Identification), MP3 players, memory sticks, but also larger PCBs for z. As mobile phones, PCs and the like.
- the invention uses the increasing miniaturization of these electronic end products on the one hand for optimum layout design of the goods and on the other hand, it supports the required for miniaturization Feinleitertechnik by the planar plating of the necessary thin base layers.
- the final products are separated after their completion in the flow system and optionally in other equipment for each use from the estate.
- the property to be treated is here z.
- these global printed circuit boards or circuit foils are also referred to as benefits. They have a usable and a unusable area.
- the end products are located on the surface to be used.
- the marginal areas, including the contact track thereon or the contact tracks are generally unusable for the end products.
- many to many mostly identical end products are arranged on the surface to be used. There are always several options for arranging the many end products on the printed circuit board or on the benefit. This fact uses the present invention.
- the invention is particularly described by the example of electroplating, in particular of printed circuit boards for full-surface metallization and via and for the construction of the circuit pattern, the z. B. is structured with resist.
- the invention is also fully suitable for electrolytic etching and other electrolytic processes.
- the material is fed according to the invention by means of preferably a contact track in the middle with the required for electroplating electrical or electrolytic current.
- the influence on the layer thickness distribution transverse to the transport direction is then at least as advantageous or better than in the prior art with an ideal uniform feed from the two edges.
- the two oblique planes forming according to the invention reverse in their direction.
- the largest layer thickness is again achieved in the contact area, ie in the middle of the good.
- the layer thickness differences of the inclined planes transverse to the transport direction according to the invention amount to only about a quarter of the difference, which is achieved with a feed of the galvanizing of only one edge, regardless of the currently acting contact contact resistors.
- the electrical contact in the region of the middle of the goods, d. H. in the useful range, has the following significant advantages compared to the prior art:
- the procedure is suitable for different dimensions of the goods, transversely to the transport direction, without retrofitting the system. Therefore, the good can be retracted with different dimensions and different layouts in any order in the system and galvanized.
- the bone effect on these edges does not interfere, but is partially beneficial.
- the thinner layer at the edges is advantageously increased by the deposition bone, whereby the difference of the layer thicknesses from the edge to the center becomes even smaller than with a double-sided edge feed according to the prior art.
- Effective area with equally good or better layer thickness distribution in comparison to double-sided infeed •
- the size of the working area can be adapted exactly to the size of the end products to be arranged on it, which avoids unnecessarily large waste of base material.
- Contact means can not have differences in diameter on either side which would transport the plates out of the track.
- the feeding of the galvanizing in the useful range of the goods can be carried out in an extension of the invention by means of several transversely offset to the transport direction contact tracks. Already with two contact tracks in the useful range, the local differences of the cell voltages can be reduced to a sixteenth compared to a one-sided feed of the prior art.
- Figure 1 a shows in cross section a continuous system or a belt system after the
- FIG. 1 b shows on a very enlarged scale the layer thickness profile to be achieved with the arrangement according to FIG. 1 a.
- FIG. 2 a shows in cross-section a continuous installation or a belt installation according to the present invention.
- FIG. 2 b shows the layer thickness profile to be achieved according to the invention transversely to FIG
- Figure 3 shows in plan view a good with many end products arranged thereon.
- ring-shaped or disc-shaped electrical contacts 3 are arranged at the two ends. These contacts 3 roll at the top and at the bottom of the goods 1 on the base layers 4 from. The goods 1 is transported and contacted at the same time electrically. The electrical contacting occurs at the two edge regions 5 of the material. At the top and at the
- Galvanisierstrom provoke 8 as a DC power source or as a unipolar or bipolar
- Pulsed current source is used to feed the electrolytic cells.
- the width of the goods 1 transversely to the transport direction must be such that the contacts 3 can roll on a sufficiently wide contact track at the edges of the goods 1. Therefore, only a very broad good 1 in an existing plant according to the prior art can be treated.
- FIG. 1b shows the course of the layer thickness on the product 1 transversely to the transport direction, as it results in an arrangement according to FIG. 1a.
- Typical is the course of the inclined planes, which are shown on a very large scale.
- the minimum of the layer thickness of the galvanized layer 10 occurs in the region of the middle of the material 1. In this range, the effective cell voltage between the cathodic surface of the material 1 and the anode 6 due to the voltage drop in the base layer 4 is smallest. Accordingly, the local current density and thus the thickness of the deposited layer is the lowest.
- Figure 2 a shows in cross-section an inventive continuous system or belt system for galvanizing plate-shaped or bandförmigem Good 1.
- transport and contact means 2 which transport the goods 1 and electrically contact.
- rollers as a means of transport 2. It can also be used rotating shafts with wheels or non-rotating sliding contacts application.
- the electrical contacts 3, as rings, wheels, discs, brushes or segmented contact wheels, are at this basic arrangement of the invention transversely to the transport direction preferably in the middle of the contact means 2 and the transport path. This arrangement requires on the estate only a corresponding contact track 15, which preferably also extends in the middle of the goods 1 within the effective area 17, as shown in FIG.
- To these thinner edge regions 13 is added in the region of the smallest current density and thus in the valley of the inclined plane of each deposition bone 11. This is thus formed in the region of the smallest current density. It is therefore significantly smaller than the prior art two-sided feed, in which the deposition bone is formed in the region of the largest current density. In sum, this makes the global layer thickness differences smaller as compared to the two-sided feed of the prior art.
- the inventive method is suitable for. B. very well for the requirements that currently makes the printed circuit board technology to such electroplating.
- the length of the current flow in the base layer of the printed circuit board is shortened to 1 A of the total width, which means a quarter of the electrical resistance of the associated current path.
- a quarter of the current, which flows through a quarter of the resistance results according to Ohm's law, an electrical voltage drop, which is only one-sixteenth.
- the differences in layer thickness on the material are reduced in comparison to a one-sided current injection according to the prior art.
- the valleys of the inclined planes are again away from the contacts.
- Sputtered base layers are particularly thin in the edge region of the material or the metallization is completely absent.
- These are z. B. 12 microns or 17 microns thick base layers etched back to about 3 microns.
- the actual treatment of the circuit boards takes place.
- the edge areas are etched more intensively than the center area.
- the feed of the electrolytic current according to the invention proves to be in the middle of the product or in several lanes of the product Mitten Schemees as very beneficial, because there is always the nominal layer thickness of the base layer and therefore a reliable power supply is possible.
- two contact tracks 15 may be located on a contact means 2 two contacts 3.
- two grinding or rotary contacts 9 are required if each contact track one or more individual rectifiers are assigned, which ensure advantageous to all sides transversely to the transport direction the exact same current flow.
- each contact means 2 with only one contact 3 and a rotary contact 9. In the transport direction of the goods 1, these contacts 3 are then arranged on the contact centers 2 alternately right and left.
- the contacts 3 must then carry twice the current, regardless of whether both sides are fed by a rectifier or by individual rectifiers.
- the size of the current per contact also increases.
- the possibility of overloading individual contacts also decreases. The best case is given when each rectifier 8 is assigned to each individual contact. The current-controlled rectifier limited the treatment current to the intended target current. An overload of the contact is thereby avoided.
- FIG. 3 shows, in plan view, by way of example, a product 1 whose layout is designed for electroplating numerous end products 14 in a continuous installation or strip installation according to the invention.
- the outer dimensions of the goods are z. B. 610 mm x 610 mm.
- the semicolon-framed useful area 17, on which the end products and the at least one contact track 15 are located, is smaller around the narrow edge surfaces 13.
- the transport direction arrow 16 indicates the transport direction of the goods through the galvanizing plant.
- In good can also be plated through holes and blind holes, which are provided with an electrically conductive layer.
- the for the final products 14, z. B. BGAs, usable area is smaller, z. B. 580 mm x 580 mm.
- the edges 13 are not usable for the final products 14.
- the electrical contacting takes place in the region of the middle of the goods 1 on the end products 14 located there. If these comparatively few end products become defective as a result of the contacting, they can be sorted out of the use later after the separation. This procedure simplifies the design of the layout of the goods 1.
- the yield per benefit in both cases ie with or without designated contact track, about the same size.
- the yield per benefit in both cases ie with or without designated contact track, about the same size.
- the contact track as well as the other surfaces to be plated is to be kept free of resist.
- the format of the goods according to the invention is not tied to the rectangular shape. It can, for. B. have polygonal or round contours. In special cases, this can lead to the saving of base material. LIST OF REFERENCE NUMBERS
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10732625A EP2432922A1 (de) | 2009-05-22 | 2010-05-18 | Verfahren und vorrichtung zum elektrolytischen behandeln von hochohmigen schichten |
JP2012511147A JP2012527526A (ja) | 2009-05-22 | 2010-05-18 | 高抵抗層の電解処理のための方法及び装置 |
CN2010800222524A CN102439203A (zh) | 2009-05-22 | 2010-05-18 | 用于电解处理高电阻层的方法和装置 |
US13/321,631 US20120061245A1 (en) | 2009-05-22 | 2010-05-18 | Method and device for the electrolytic treatment of high-resistance layers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009023763A DE102009023763A1 (de) | 2009-05-22 | 2009-05-22 | Verfahren und Vorrichtung zum elektrolytischen Behandeln von hochohmigen Schichten |
DE102009023763.1 | 2009-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010133223A1 true WO2010133223A1 (de) | 2010-11-25 |
Family
ID=42733505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2010/000596 WO2010133223A1 (de) | 2009-05-22 | 2010-05-18 | Verfahren und vorrichtung zum elektrolytischen behandeln von hochohmigen schichten |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120061245A1 (de) |
EP (1) | EP2432922A1 (de) |
JP (1) | JP2012527526A (de) |
KR (1) | KR20120028936A (de) |
CN (1) | CN102439203A (de) |
DE (1) | DE102009023763A1 (de) |
WO (1) | WO2010133223A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105040076A (zh) * | 2015-08-03 | 2015-11-11 | 东莞以利沙五金制品有限公司 | 水平镀银制造装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0561184A1 (de) * | 1992-03-14 | 1993-09-22 | Gebr. Schmid GmbH & Co. | Einrichtung zur Behandlung von Gegenständen, insbesondere Galvanisiereinrichtungen für Leiterplatten |
DE19633797A1 (de) * | 1996-08-22 | 1998-02-26 | Hoellmueller Maschbau H | Vorrichtung zum Galvanisieren von elektronischen Leiterplatten oder dergleichen |
DE10019713A1 (de) * | 2000-04-20 | 2001-10-31 | Atotech Deutschland Gmbh | Vorrichtung und Verfahren zur elektrischen Kontaktierung von elektrolytisch zu behandelndem Gut in Durchlaufanlagen |
DE10228400A1 (de) * | 2002-06-25 | 2004-01-15 | Höllmüller Maschinenbau GmbH | Vorrichtung zum Galvanisieren von elektronischen Leiterplatten |
DE102004025827B3 (de) * | 2004-05-24 | 2005-06-30 | Höllmüller Maschinenbau GmbH | Vorrichtung zum elektrischen Kontaktieren von ebenem Behandlungsgut in Durchlaufanlagen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3603856C2 (de) * | 1986-02-07 | 1994-05-05 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Galvanisierung von ebenen Werkstücken wie Leiterplatten |
DE3645319C3 (de) | 1986-07-19 | 2000-07-27 | Atotech Deutschland Gmbh | Anordnung und Verfahren zum elektrolytischen Behandeln von plattenförmigen Gegenständen |
ATE125001T1 (de) * | 1991-04-12 | 1995-07-15 | Siemens Ag | Galvanisiereinrichtung für plattenförmige werkstücke, insbesondere leiterplatten. |
DE4301742C2 (de) | 1993-01-23 | 1999-07-08 | Hoellmueller Maschbau H | Vorrichtung zum Galvanisieren plattenförmiger Gegenstände, insbesondere von elektronischen Leiterplatten |
CA2341218A1 (en) * | 1998-08-19 | 2000-03-02 | Atotech Deutschland Gmbh | Contact element |
TW501277B (en) * | 2000-03-29 | 2002-09-01 | Sanyo Electric Co | Plating device |
DE10141056C2 (de) | 2001-08-22 | 2003-12-24 | Atotech Deutschland Gmbh | Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch leitfähigen Schichten in Durchlaufanlagen |
DE102004030726A1 (de) | 2004-06-25 | 2006-01-19 | Hans Höllmüller Maschinenbau GmbH & Co. | Verfahren und Vorrichtung zur elektrolytischen Behandlung von dünnen Schichten |
DE102005030546A1 (de) | 2005-06-22 | 2007-01-04 | Gebr. Schmid Gmbh & Co. | Einrichtung zur Behandlung von flachen und flächigen Gegenständen |
-
2009
- 2009-05-22 DE DE102009023763A patent/DE102009023763A1/de not_active Withdrawn
-
2010
- 2010-05-18 WO PCT/DE2010/000596 patent/WO2010133223A1/de active Application Filing
- 2010-05-18 KR KR1020117030669A patent/KR20120028936A/ko not_active Application Discontinuation
- 2010-05-18 CN CN2010800222524A patent/CN102439203A/zh active Pending
- 2010-05-18 EP EP10732625A patent/EP2432922A1/de not_active Withdrawn
- 2010-05-18 JP JP2012511147A patent/JP2012527526A/ja not_active Withdrawn
- 2010-05-18 US US13/321,631 patent/US20120061245A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0561184A1 (de) * | 1992-03-14 | 1993-09-22 | Gebr. Schmid GmbH & Co. | Einrichtung zur Behandlung von Gegenständen, insbesondere Galvanisiereinrichtungen für Leiterplatten |
DE19633797A1 (de) * | 1996-08-22 | 1998-02-26 | Hoellmueller Maschbau H | Vorrichtung zum Galvanisieren von elektronischen Leiterplatten oder dergleichen |
DE10019713A1 (de) * | 2000-04-20 | 2001-10-31 | Atotech Deutschland Gmbh | Vorrichtung und Verfahren zur elektrischen Kontaktierung von elektrolytisch zu behandelndem Gut in Durchlaufanlagen |
DE10228400A1 (de) * | 2002-06-25 | 2004-01-15 | Höllmüller Maschinenbau GmbH | Vorrichtung zum Galvanisieren von elektronischen Leiterplatten |
DE102004025827B3 (de) * | 2004-05-24 | 2005-06-30 | Höllmüller Maschinenbau GmbH | Vorrichtung zum elektrischen Kontaktieren von ebenem Behandlungsgut in Durchlaufanlagen |
Also Published As
Publication number | Publication date |
---|---|
KR20120028936A (ko) | 2012-03-23 |
EP2432922A1 (de) | 2012-03-28 |
JP2012527526A (ja) | 2012-11-08 |
CN102439203A (zh) | 2012-05-02 |
US20120061245A1 (en) | 2012-03-15 |
DE102009023763A1 (de) | 2010-11-25 |
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