DE102007035903A1 - Contacting foil for the production of electric conductive connection between two points of a carrier, comprises an electrically non-conductive base strip that comprises electric-conductive particles - Google Patents
Contacting foil for the production of electric conductive connection between two points of a carrier, comprises an electrically non-conductive base strip that comprises electric-conductive particles Download PDFInfo
- Publication number
- DE102007035903A1 DE102007035903A1 DE102007035903A DE102007035903A DE102007035903A1 DE 102007035903 A1 DE102007035903 A1 DE 102007035903A1 DE 102007035903 A DE102007035903 A DE 102007035903A DE 102007035903 A DE102007035903 A DE 102007035903A DE 102007035903 A1 DE102007035903 A1 DE 102007035903A1
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- Prior art keywords
- electrically conductive
- conductive particles
- base film
- contacting
- points
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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
- H05K3/105—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 by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- 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
- H05K3/102—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 by bonding of conductive powder, i.e. metallic powder
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0116—Porous, e.g. foam
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0125—Shrinkable, e.g. heat-shrinkable polymer
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0215—Metallic fillers
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0221—Insulating particles having an electrically conductive coating
-
- 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
- H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
- H05K2203/107—Using laser light
-
- 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
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1131—Sintering, i.e. fusing of metal particles to achieve or improve electrical conductivity
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/06—Forming electrodes or interconnections, e.g. leads or terminals
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Kontaktierungsfolie sowie ein Verfahren zum Herstellen einer elektrisch leitenden Verbindung zwischen zwei Punkten auf einem Träger mit Hilfe dieser Kontaktierungsfolie.The The present invention relates to a contacting film and a Method for producing an electrically conductive connection between two points on a carrier with the help of this contacting foil.
Zum Herstellen elektrischer Kontaktierungen, beispielsweise bei piezoelektrischen Multilayeraktoren, werden planare Verdrahtungslagen genutzt. Diese planaren Verdrahtungslagen sind dann vorteilhaft, wenn man in einem elektrisch isolierenden Material lokal elektrisch leitfähige Bereiche erzeugen kann. Diese Bereiche stellen dann die elektrische Verbindung zwischen beispielsweise zwei Punkten auf einem Substrat her, um die gewünschte elektrische Verdrahtung zu realisieren. Vorteilhaft ist in diesem Zusammenhang, wenn die elektrisch leitenden Bereiche innerhalb des elektrisch isolierenden Materials fein strukturiert werden können, so dass mit geringem Platzbedarf der Verlauf elektrisch leitender Bereiche realisierbar ist.To the Producing electrical contacts, for example in piezoelectric Multilayer actuators, planar wiring layers are used. These planar wiring layers are then advantageous when in one electrically insulating material locally electrically conductive areas can generate. These areas then provide the electrical connection between, for example, two points on a substrate to the desired to realize electrical wiring. It is advantageous in this Connection, when the electrically conductive areas within the electrically insulating material can be finely structured, so that with little space required the course of electrically conductive areas is feasible.
Bei bekannten planaren Verdrahtungslagen wird als elektrisch isolierendes Material eine Folie genutzt, die beispielsweise auf einen Träger oder ein Substrat aufbringbar ist. Diese Folie enthält metallische Partikel oder metallisierte Kunststoffpartikel, die soweit voneinander beabstandet sind, dass die Folie elektrisch nicht leitend ist. Derartige Folien werden beispielsweise als anisotrop leitfähige Klebefolien bezeichnet. Wird eine derartige Klebefolie in einem ausgewählten lokalen Bereich durch einen äußeren Druck belastet, werden in diesem ausgewählten Bereich die leitfähigen Partikel in der Folie miteinander in Kontakt gebracht. Dieser Kontakt zwischen den leitfähigen Partikeln erzeugt eine lokale elektrische Leitfähigkeit in z-Richtung, d. h. parallel zur Wirkung des aufgebrachten Drucks. Es ist ebenfalls denkbar, die oben diskutierten Folien in Form eines Flüssigklebstoffs bereitzustellen, die beispielsweise zur Kontaktierung von Flexfolien auf Substraten eingesetzt werden.at known planar wiring layers is called electrically insulating Material used a slide, for example, on a support or a substrate can be applied. This foil contains metallic particles or metallized plastic particles spaced far enough apart are that the film is electrically non-conductive. Such films For example, they are referred to as anisotropically conductive adhesive films. If such an adhesive film in a selected local area by an external pressure loaded, become in this selected area the conductive particles brought into contact with each other in the film. This contact between the conductive one Particles produce a local electrical conductivity in the z-direction, i. H. parallel to the effect of the applied pressure. It is also conceivable, the films discussed above in the form of a liquid adhesive to provide, for example, for contacting Flexfolien be used on substrates.
Oben genannte Klebefolien und Flüssigklebstoffe haben den Nachteil, dass die lokale Auflösung beim Erzeugen elektrisch leitfähiger Bereiche begrenzt ist. Dadurch wird das Erzeugen fein strukturierter elektrischer Kontaktierungen erschwert. Zudem wäre es erstrebenswert, oben genannte Verdrahtungslagen mit geringerem Aufwand erzeugen zu können.Above mentioned adhesive films and liquid adhesives have the disadvantage that the local resolution when generating electric conductive Areas is limited. This makes the creation finely structured makes electrical contacts difficult. In addition, it would be desirable, above to produce said wiring layers with less effort.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine im Vergleich zum Stand der Technik verbesserte Kontaktierungsfolie sowie ein Verfahren zum Herstellen einer elektrisch leitenden Verbindung zwischen zwei Punkten auf einem Träger bereitzustellen.It is therefore the object of the present invention, a comparison to the prior art improved contacting film as well as a Method for producing an electrically conductive connection between two points on a carrier provide.
Die obige Aufgabe wird durch eine Kontaktierungsfolie gemäß dem unabhängigen Patentanspruch 1 sowie durch ein Verfahren gemäß dem unabhängigen Patentanspruch 7 gelöst. Vorteilhafte Ausgestaltungen und Weiterentwicklungen der vorliegenden Erfindung gehen aus der folgenden Beschreibung, den Zeichnungen sowie den anhängenden Ansprüchen hervor.The above object is achieved by a Kontaktierungsfolie according to the independent claim 1 and by a method according to the independent claim 7 solved. Advantageous embodiments and further developments of the present Invention will be apparent from the following description, the drawings as well as the attached claims out.
Die erfindungsgemäße Kontaktierungsfolie zum Herstellen einer elektrisch leitenden Verbindung zwischen zwei Punkten eines Trägers weist die folgenden Merkmale auf: eine elektrisch nicht leitende und auf den Träger aufbringbare Basisfolie, die eine Vielzahl elektrisch leitfähiger Partikel umfasst, so dass mit Hilfe elektromagnetischer Bestrahlung der Basisfolie die elektrisch leitfähigen Partikel in Kontakt miteinander bringbar und definierte lokal beschränkte, elektrisch leitfähige Bereiche in der Kontaktierungsfolie generierbar sind.The inventive contacting film for Making an electrically conductive connection between two points a carrier has the following features: an electrically nonconductive and on the carrier Applicable base film comprising a plurality of electrically conductive particles includes, so with the help of electromagnetic radiation of the base film the electrically conductive Particles in contact with each other and defined locally limited, electrically conductive Areas can be generated in the contacting film.
Die erfindungsgemäße Kontaktierungsfolie zeichnet sich dadurch aus, dass sie durch eine elektromagnetische Bestrahlung veränderbar ist. Im Speziellen wandelt die elektromagnetische Bestrahlung zuvor elektrisch nicht leitende Bereiche in e lektrisch leitfähige Bereiche um. Wird diese elektromagnetische Bestrahlung beispielsweise mit Hilfe eines Lasers oder als Mikrowellenbestrahlung aufgebracht, sind fein strukturierte lokale Bereiche gezielt bestrahlbar und somit in elektrisch leitfähige Bereiche umwandelbar. Die Strukturierung dieser elektrisch leitfähigen Bereiche wird somit durch das Auflösungsvermögen der Strahlungsquelle beeinflusst. Nutzt man beispielsweise einen Laserstrahl, sind in Abhängigkeit von der Wellenlänge des Laserlichts und des Durchmessers des Laserstrahls entsprechend strukturierte leitfähige Bahnen innerhalb der Kontaktierungsfolie generierbar.The inventive contacting film records characterized by being exposed by electromagnetic radiation variable is. In particular, the electromagnetic radiation converts beforehand electrically non-conductive areas in e lektrisch conductive areas around. If this electromagnetic radiation, for example, with Help of a laser or applied as microwave irradiation, are finely structured local areas can be selectively irradiated and thus in electrically conductive Areas convertible. The structuring of these electrically conductive areas is thus by the resolution of the Radiation source influenced. For example, if you use a laser beam, are dependent from the wavelength the laser light and the diameter of the laser beam accordingly structured conductive Webs generated within the contacting film.
Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung erzeugt die elektromagnetische Bestrahlung der Kontaktierungsfolie ein Schrumpfen der Basisfolie in dem jeweils bestrahlten Bereich. Auf diese Weise werden die elektrisch leitfähigen Partikel innerhalb der Basisfolie miteinander in Kontakt gebracht, wodurch die elektrische Leitfähigkeit erzeugt wird. Gemäß einer weiteren bevorzugten Ausführungsform dehnen sich die elektrisch leitfähigen Partikel innerhalb der Basisfolie aufgrund der Bestrahlung aus. Zu diesem Zweck werden die elektrisch leitfähigen Partikel beispielsweise aus metallisiertem Kunststoff hergestellt, der mittels elektromagnetischer Bestrahlung aufschäumbar ist. Durch diese Volumenvergrößerung der elektrisch leitfähigen Partikel treten diese in Kontakt miteinander und erzeugen dadurch wiederum eine elektrische Leitfähigkeit in dem bestrahlten Bereich.According to one preferred embodiment of The present invention generates the electromagnetic radiation the Kontaktierungsfolie a shrinkage of the base film in the respective irradiated area. In this way, the electrically conductive particles brought into contact with each other within the base film, thereby the electrical conductivity is produced. According to one another preferred embodiment the electrically conductive expand Particles within the base film due to irradiation. For this purpose, the electrically conductive particles, for example Made of metallized plastic, which is made by electromagnetic Irradiation foamable is. Due to this increase in volume of electrically conductive particles they come into contact with each other and in turn generate an electrical conductivity in the irradiated area.
Das erfindungsgemäße Verfahren zum Herstellen einer elektrisch leitenden Verbindung zwischen zwei Punkten auf dem Träger umfasst die folgenden Schritte: Aufbringen der elektrisch leitenden Basisfolie mit einer Vielzahl elektrisch leitfähiger Partikel auf den Träger und Bestrahlen eines Bereichs der Basisfolie mit der Vielzahl von elektrisch leitfähigen Partikeln zwischen den zwei Punkten mit elektromagnetischer Strahlung, wodurch die Basisfolie mit der Vielzahl von elektrisch leitfähigen Partikeln in dem bestrahlten Bereich elektrisch leitfähig wird.The inventive method for Her Providing an electrically conductive connection between two points on the support comprises the following steps: applying the electrically conductive base film with a plurality of electrically conductive particles to the support and irradiating a portion of the base film with the plurality of electrically conductive particles between the two points with electromagnetic radiation whereby the base film becomes electrically conductive with the plurality of electrically conductive particles in the irradiated region.
In Anlehnung an die bereits oben beschriebene Kontaktierungsfolie umfasst das beschriebene Verfahren als weitere bevorzugte und alternative Verfahrensschritte das Ausdehnen, insbesondere Aufschäumen der zumindest teilweise aus metallisiertem Kunststoff bestehenden elektrisch leitfähigen Partikel durch das Bestrahlen oder das Schrumpfen der Basisfolie durch das Bestrahlen, deren elektrisch leitfähige Partikel aus Metall und/oder metallisiertem Kunststoff bestehen. Als weitere Ausgestaltung des Verfahrens ist es zudem denkbar, ein teilweises Abtragen der Basisfolie innerhalb des elektrisch leitfähigen Bereichs vorzusehen. Mit diesem Abtragen wird gewährleistet, dass eine Volumenausdehnung im elektrisch leitfähigen Bereich der Kontaktierungsfolie ausgeglichen wird, um nachteilige Effekte durch die Volumenausdehnung zu vermeiden.In Based on the already described above contacting film the method described as further preferred and alternative Process steps the expansion, in particular foaming the at least partially made of metallized plastic electrically conductive particles by irradiating or shrinking the base film by the Irradiation, whose electrically conductive particles of metal and / or consist metallized plastic. As a further embodiment of the method It is also conceivable, a partial removal of the base film within of the electrically conductive Area. This removal ensures that that compensates for a volume expansion in the electrically conductive region of the contacting film is to avoid adverse effects of the volume expansion.
Die vorliegende Erfindung wird unter Bezugnahme auf die begleitende Zeichnung näher erläutert. Es zeigen:The The present invention will be described with reference to the accompanying Drawing closer explained. Show it:
Eine
bevorzugte Ausführungsform
einer erfindungsgemäßen Kontaktierungsfolie
Die
Kontaktierungsfolie
Die
Kontaktierungsfolie
Dadurch,
dass beispielsweise der Laser nur die Wege geplanter Leiterbahnen
abfährt,
entstehen die elektrisch leitenden Bereiche innerhalb der Kontaktierungsfolie
Eine
weitere bevorzugte Ausführungsform der
vorliegenden Erfindung ist in
Gemäß einer
weiteren Ausgestaltung des erfindungsgemäßen Verfahrens wird das durch
die ausgedehnten elektrisch leitfähigen Partikel
Die
oben beschriebenen Verfahrensschritte sind zusammenfassend im Flussdiagramm
der
Man
sollte ebenfalls beachten, dass durch die Wahl von geeigneten Metallen
zum Herstellen der elektrisch leitfähigen Partikel
Mit
Hilfe des in
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007035903A DE102007035903A1 (en) | 2007-07-31 | 2007-07-31 | Contacting foil for the production of electric conductive connection between two points of a carrier, comprises an electrically non-conductive base strip that comprises electric-conductive particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007035903A DE102007035903A1 (en) | 2007-07-31 | 2007-07-31 | Contacting foil for the production of electric conductive connection between two points of a carrier, comprises an electrically non-conductive base strip that comprises electric-conductive particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102007035903A1 true DE102007035903A1 (en) | 2009-03-12 |
Family
ID=40339786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007035903A Withdrawn DE102007035903A1 (en) | 2007-07-31 | 2007-07-31 | Contacting foil for the production of electric conductive connection between two points of a carrier, comprises an electrically non-conductive base strip that comprises electric-conductive particles |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102007035903A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2016111133A1 (en) * | 2015-01-06 | 2017-08-17 | 株式会社フジクラ | Conductor layer manufacturing method and wiring board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19517062A1 (en) * | 1994-06-29 | 1996-01-25 | Bosch Gmbh Robert | Anisotropically conductive adhesive and method for producing an anisotropically conductive adhesive |
| US5661042A (en) * | 1995-08-28 | 1997-08-26 | Motorola, Inc. | Process for electrically connecting electrical devices using a conductive anisotropic material |
| DE10204959A1 (en) * | 2002-02-06 | 2003-08-14 | Endress & Hauser Gmbh & Co Kg | Printed circuit board with one component |
| DE10232636A1 (en) * | 2002-07-18 | 2004-02-12 | Delo Industrieklebstoffe Gmbh & Co. Kg | Method and adhesive for flip-chip contacting |
-
2007
- 2007-07-31 DE DE102007035903A patent/DE102007035903A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19517062A1 (en) * | 1994-06-29 | 1996-01-25 | Bosch Gmbh Robert | Anisotropically conductive adhesive and method for producing an anisotropically conductive adhesive |
| US5661042A (en) * | 1995-08-28 | 1997-08-26 | Motorola, Inc. | Process for electrically connecting electrical devices using a conductive anisotropic material |
| DE10204959A1 (en) * | 2002-02-06 | 2003-08-14 | Endress & Hauser Gmbh & Co Kg | Printed circuit board with one component |
| DE10232636A1 (en) * | 2002-07-18 | 2004-02-12 | Delo Industrieklebstoffe Gmbh & Co. Kg | Method and adhesive for flip-chip contacting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2016111133A1 (en) * | 2015-01-06 | 2017-08-17 | 株式会社フジクラ | Conductor layer manufacturing method and wiring board |
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| OP8 | Request for examination as to paragraph 44 patent law | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120201 |