DE2737582A1 - Printed circuits prodn. using adhesive pattern - involves application of pattern to substrate, with deposition of conductive layer - Google Patents
Printed circuits prodn. using adhesive pattern - involves application of pattern to substrate, with deposition of conductive layerInfo
- Publication number
- DE2737582A1 DE2737582A1 DE19772737582 DE2737582A DE2737582A1 DE 2737582 A1 DE2737582 A1 DE 2737582A1 DE 19772737582 DE19772737582 DE 19772737582 DE 2737582 A DE2737582 A DE 2737582A DE 2737582 A1 DE2737582 A1 DE 2737582A1
- Authority
- DE
- Germany
- Prior art keywords
- substrate
- adhesion
- layer
- paint
- adhesive
- 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.)
- Withdrawn
Links
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
- H05K3/182—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/386—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive
- H05K3/387—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive for electroless plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/0709—Catalytic ink or adhesive for electroless plating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1275—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by other printing techniques, e.g. letterpress printing, intaglio printing, lithographic printing, offset printing
Abstract
Description
Verfahren zur Herstellung gedruckter SchaltungenProcess for the manufacture of printed circuits
Die Erfindung betrifft ein Verfahren zur Herstellung gedruckter Schaltungen, bei dem auf einem Substrat, vorzugsweise aus nichtleitendem Material zunächst eine Haftschxht erzeugt wird und anschließend zumindest ein Teil der Schaltung auf das vorbehandelte Substrat aufgebracht wird.The invention relates to a method for producing printed circuits, in the first one on a substrate, preferably made of non-conductive material Haftschxht is generated and then at least part of the circuit on the pretreated substrate is applied.
Das derzeit am häufigsten angewandte Verfahren zur Herstellung gedruckter Schaltungen bedient sich einer Subtraktivmethode, bei der mit Hilfe von chemischen oder elektrochemischen Ätzmitteln, z.B. aus einer kupferkaschierten EULststoffplatte Ijeiterstrukturen herausgeätzt werden. Hierzu muß die kupferkaschierte Platte zunächst mit einem lichtempfindlichen Foto lack überzogen werden. Dieser wird sodann unter Verwendung einer der Leiterstruktur entsprechenden Maske belichtet, wodurch z.B. an den belichteten Stellen eine Vernetzung des Fotolacks eintreten kann. Beim Entwickeln werden die unbelichteten Bereiche dann freigelegt, so daß an diesen Stellen durch einen Ätzprozeß anschließend die Kupferschicht herausgeätzt werden kann.Currently the most widely used method of making printed Circuits uses a subtractive method in which with the help of chemical or electrochemical etchants, e.g. from a copper-clad EULlaststoffplatte Ijeiterstructures are etched out. To do this, the copper-clad plate must first be coated with a photosensitive photo lacquer. This is then under Using a mask corresponding to the conductor structure exposed, whereby e.g. Crosslinking of the photoresist can occur at the exposed areas. When developing the unexposed areas are then exposed, so that through at these points an etching process then the copper layer can be etched out.
Ein weiteres Verfahren bedient sich einer Additivmethode, bei der die Leiterstrukturen auf vorbehandelten Kunststoffunterlagen abgeschieden werden. Auch hierbei müssen allerdings die Strukturen über einen zeitraubenden Fotolackprozeß auf die Kunststoffunterlage aufgebracht werden, Der Erfindung lag daher die Aufgabe zugrunde, ein billiges und zeitsparendes Verfahren zur Herstellung gedruckter Schaltungen anzugeben, mit dessen Hilfe Strukturen hoher Konturenschärfe auf ein Substrat aufgebracht werden können.Another method uses an additive method in which the conductor structures are deposited on pretreated plastic substrates. Here too, however, must the structures over a time consuming Photoresist process are applied to the plastic substrate, the invention was therefore the task is based on a cheap and time-saving method of manufacture Specify printed circuits, with the help of which structures with high contour definition can be applied to a substrate.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine haftvermittelnde Paste oder Farbe die fletallkeime oder Substanzen aus denen Netallkeime gebildet werden enthält, mittels eines Druckverfahrens auf das Substrat aufgebracht wird, wobei eine derart ausgebildete Druckform verwendet wird, daß auf dem Substrat haftvermittelnde Bereiche gebildet werden, welche in ihrer geometrischen Struktur der aufzubauenden Schaltungastruktur entsprechen und daß auf die mit einer Haftschicht versehenen Bereiche wenigstens eine Schicht abgeschieden wird, die eine gegenüber dem Substrat höhere Leitfähigkeit aufweist.This object is achieved according to the invention in that an adhesion-promoting Paste or paint the metal germs or substances from which metal germs are formed contains, is applied to the substrate by means of a printing process, wherein a printing forme designed in such a way is used that on the substrate adhesion-promoting Areas are formed, which in their geometric structure of the to be built Circuit structure correspond and that provided with an adhesive layer Areas at least one layer is deposited, the one opposite to the substrate has higher conductivity.
Der Vorteil der erfindungsgemäßen Lösung ist darin zu sehen, daß durch die Kombination von Druck- und Abscheidungsverfahren Strukturen hoher Konturenschärfe in einem weitgehend automatisierten Fertigungsablauf vorzugsweise für Massenanfertigungen hergestellt werden können, Die Verwendung der Fotolacktechnik im Zusammenhang mit Additivverfahren ist für Massenfertigungsprozesse viel zu aufwendig, während ein reines Druckverfahren, bei dem also z.B. die fertigen Leiterbahnen in einem einzigen Verfahrensschritt auf einer Kunststoffplatte aufgebracht werden, die Forderungen hinsichtlich Konturenschärfe nicht erfüllen würde.The advantage of the solution according to the invention is to be seen in the fact that through the combination of printing and deposition processes structures with high contour definition in a largely automated production process, preferably for mass production The use of photoresist technology related to Additive process is far too expensive for mass production processes while a Pure printing process, in which e.g. the finished conductor tracks in a single Process step to be applied to a plastic plate, the requirements would not meet in terms of contour sharpness.
Das der vorliegenden Anmeldung zugrundeliegende Verfahrens- prinzip geht demgegenüber von der Vorstellung aus, daß ähnlich wie bei der Drucktechnik, mit Hilfe von Rotationswalzen z.B. Hartchromwalzen oder Stempeln oder ähnlichen Werkzeugen eine Haftschicht in der gewünschten Struktur auf ein Substrat in nahezu beliebigen Stückzahlen "aufgedruckt" wird. Auf diese Leiterstruktur können dann durch chemische Abscheidung, z.B in einem stromlos arbeitendem, galvanischen Hochleistungsbad Kupfer, Nickel oder sonstige interessierende fletalle in beliebig dicken Schichten aufgebracht werden, Zur Herstellung der Druckform wird dagegen zweckmäßig ein Fotolack-Prozeß angewendet, da mit Hilfe dieses Verfahrens Strukturen hoher Konturenschärfe herstellbar sind. Die Anwendung dieses Verfahres ist hier angebracht, weil durch die Güte der Druckform zwangsläufig auch die Güte der herzustellenden Schaltungsstruktur bedingt list0 Die Haftschicht wird in der Weise "aufgedruckt", daß z.B.The process on which the present application is based principle on the other hand, is based on the idea that, similar to printing technology, with the help of rotating rollers, e.g. hard chrome rollers or stamps or similar Tools an adhesive layer in the desired structure on a substrate in nearly Any number of items is "printed". You can then use this ladder structure by chemical deposition, e.g. in an electroless, galvanic high-performance bath Copper, nickel or other metals of interest in layers of any thickness In contrast, a photoresist process is expediently applied to produce the printing form used because structures of high contour definition can be produced with the help of this process are. The application of this procedure is appropriate here because the quality of the Printing form inevitably also determines the quality of the circuit structure to be produced list0 The adhesive layer is "printed on" in such a way that e.g.
in einem Endlos-Prozeß oder einem schrittweisen Verfahren mittels einer entsprechend ausgebildeten Druckform eine haftvermittelnde Substanz, z.B. eine haftvermittelnde Paste oder Farbe auf das Substrat, welches beispielsweise aus einem keramischen Material Glas, Harz oder Kunststoff bestehen kann, aufgebracht wird. Die haftvermittelnde Substanz enthält vorzugsweise Metallkeime oder Substanzen, aus denen Metallkeime gebildet werden können. Hierfür kommen insbesondere oxidische Metalle wie etwa Kupferoxid oder Titanoxid, Metallsalze wie etwa Zinnchlorid oder komplex gebundene Metalle in Frage. Weiterhin enthält die haftvermittelnde Substanz haftungsbildende Klebesubstanzen oder Verbinder, sowie fombildende Komponenten, mit deren Hilfe beispielsweise die Konturenschärfe beeinfluß werden soll.in an endless process or a step-by-step process by means of an appropriately designed printing form an adhesion-promoting substance, e.g. an adhesion-promoting paste or paint on the substrate, which for example can consist of a ceramic material glass, resin or plastic, applied will. The adhesion-promoting substance preferably contains metal nuclei or substances, from which metal nuclei can be formed. Oxidic ones in particular are used for this purpose Metals such as copper oxide or titanium oxide, metal salts such as tin chloride or complex bound metals in question. It also contains the adhesion-promoting substance adhesion-forming adhesive substances or connectors, as well as shape-forming components, with the help of which, for example, the sharpness of the contours is to be influenced.
Die haftungsbildende Substanz muß durch thermische Behandlung, z,B, iR-Bestrahlung oder durch Uv-Bestrahlung getrocknet werden, wodurch eine in die Oberfläche des Substrats gut verankerte Haftschicht entsteht.The adhesive-forming substance must be subjected to thermal treatment, e.g. IR irradiation or UV irradiation can be dried, resulting in a in the A well-anchored adhesive layer is created on the surface of the substrate.
Auf der Haftschicht kann dann die eigentliche gedruckte Schaltung aufgebaut werden, beispielsweise durch stromlose Abscheidung von Metallen, wodurch unmittelbar Leiterbahnen gebildet werden können, oder durch Abscheidung einer Schichtenfolge von Materialien unterschiedlicher Leitfähigkeit, wodurch sich z,B. Widerstände oder Kondensatoren herstellen lassen.The actual printed circuit can then be placed on the adhesive layer be built up, for example by electroless deposition of metals, whereby Conductor tracks can be formed directly, or by depositing a sequence of layers of materials of different conductivity, whereby e.g. Resistors or Have capacitors manufactured.
Schließlich ist es auch möglich mehrere gedruckte Schaltungen übereinander aufzubauen. Hierzu muß lediglich die bereits aufgebaute gedruckte Schaltung mit einem isolierenden Uberzug versehen werden, auf den dann wiederum eine Haftschicht "aufgedruckt" wird und auf dieser in bekannter Weise die weiteren Schichten chemisch abgeschieden werden.Finally, it is also possible to have several printed circuits on top of one another build up. For this purpose, only the already built printed circuit has to be included be provided with an insulating coating, on which in turn an adhesive layer is "printed" and on this in a known manner the further layers chemically to be deposited.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772737582 DE2737582A1 (en) | 1977-08-20 | 1977-08-20 | Printed circuits prodn. using adhesive pattern - involves application of pattern to substrate, with deposition of conductive layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772737582 DE2737582A1 (en) | 1977-08-20 | 1977-08-20 | Printed circuits prodn. using adhesive pattern - involves application of pattern to substrate, with deposition of conductive layer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2737582A1 true DE2737582A1 (en) | 1979-03-01 |
Family
ID=6016869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772737582 Withdrawn DE2737582A1 (en) | 1977-08-20 | 1977-08-20 | Printed circuits prodn. using adhesive pattern - involves application of pattern to substrate, with deposition of conductive layer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2737582A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0045466A2 (en) * | 1980-08-04 | 1982-02-10 | Helmuth Schmoock | Circuit with printed conductors and method of manufacturing it |
EP0180101A2 (en) * | 1984-11-01 | 1986-05-07 | International Business Machines Corporation | Deposition of patterns using laser ablation |
DE3733002A1 (en) * | 1986-09-30 | 1988-04-07 | Wilde Membran Impuls Tech | Electroconductive pattern metallised additively |
-
1977
- 1977-08-20 DE DE19772737582 patent/DE2737582A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0045466A2 (en) * | 1980-08-04 | 1982-02-10 | Helmuth Schmoock | Circuit with printed conductors and method of manufacturing it |
EP0045466A3 (en) * | 1980-08-04 | 1984-03-21 | Helmuth Schmoock | Circuit with printed conductors and method of manufacturing it |
EP0180101A2 (en) * | 1984-11-01 | 1986-05-07 | International Business Machines Corporation | Deposition of patterns using laser ablation |
EP0180101A3 (en) * | 1984-11-01 | 1987-10-28 | International Business Machines Corporation | Deposition of patterns using laser ablation |
DE3733002A1 (en) * | 1986-09-30 | 1988-04-07 | Wilde Membran Impuls Tech | Electroconductive pattern metallised additively |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OF | Willingness to grant licences before publication of examined application | ||
8141 | Disposal/no request for examination |