DE3824139A1 - Electrodes for piezoceramics - Google Patents

Electrodes for piezoceramics

Info

Publication number
DE3824139A1
DE3824139A1 DE3824139A DE3824139A DE3824139A1 DE 3824139 A1 DE3824139 A1 DE 3824139A1 DE 3824139 A DE3824139 A DE 3824139A DE 3824139 A DE3824139 A DE 3824139A DE 3824139 A1 DE3824139 A1 DE 3824139A1
Authority
DE
Germany
Prior art keywords
electrodes
hot melt
melt adhesive
piezoceramic
piezoceramics
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.)
Ceased
Application number
DE3824139A
Other languages
German (de)
Inventor
Thomas Dipl Ing Hirsch
Rudolf Burger
Egon Dipl Ing Edinger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE3824139A priority Critical patent/DE3824139A1/en
Publication of DE3824139A1 publication Critical patent/DE3824139A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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)
  • Manufacturing & Machinery (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The manufacture of piezoceramics - and in particular their electrodes - is intended to be made more economical. The electrodes are applied without intermediate layer to the piezoceramic from a hot-melt adhesive which is filled with carbon black and thus electrically conductive. Piezoceramics of all types. <IMAGE>

Description

Die Erfindung betrifft ein Bauelement nach dem Oberbegriff des Anspruchs 1.The invention relates to a component according to the preamble of Claim 1.

Unter Piezokeramiken sind schwingende Bauelemente zu verstehen, die in Fernsprechapparaten, Tongebern, Sensoren, mechanischen Filtern, Tintendruckköpfen usw. Verwendung finden. Eine derar­ tige Piezokeramik ist bekanntlich beispielsweise bei der Uhren- Summerscheibe beidseitig und ganzflächig mit Elektroden verse­ hen, die aus Einbrennsilber oder aus aufgedampften Metallschich­ ten bestehen. Es ist aber auch möglich, die Silberschichten mittels Siebdrucktechnik auf die Piezokeramik aufzubringen und dann einzubrennen.Piezo ceramics are to be understood as vibrating components, those in telephone sets, sounder, sensors, mechanical Filters, ink printheads, etc. are used. A derar piezoceramic is known for example in the watch Summers disk on both sides and with electrodes across the entire surface hen made of stoving silver or vapor-deposited metal ten exist. But it is also possible to use the silver layers applied to the piezoceramic using screen printing technology and then burn in.

Der Erfindung liegt die Aufgabe zugrunde, die Herstellung von derartigen Piezokeramiken wirtschaftlicher zu gestalten. Diese Aufgabe wird gemäß dem Kennzeichen des Anspruchs 1 gelöst. Vor­ teilhafte Ausführungsformen und Weiterbildungen sind Gegenstän­ de der Unteransprüche.The invention has for its object the manufacture of to make such piezoceramics more economical. These Object is achieved according to the characterizing part of claim 1. Before partial embodiments and further developments are subjects de of the subclaims.

Schmelzkleber ist in der Umgangssprache die Bezeichnung für bei Raumtemperatur feste, meist wasser- oder lösungsmittelfreie Klebstoffe, die zur Herstellung einer Verklebung als Schmelzen aufgetragen werden und beim Abkühlen unter Verfestigung die Bindung bewirken.Hot melt adhesive is the term for at Room temperature solid, mostly water or solvent free Adhesives used to make a bond as a melt be applied and when cooling while solidifying the Create a bond.

Als Schmelzkleber eignet sich beispielsweise ein unter dem Han­ delsnamen bekannter Kunststoff "Lucalen", der besonders gute Klebeeigenschaften aufweist und durch das Beimischen von Ruß die erforderliche elektrische Leitfähigkeit erhält.A hot melt adhesive is, for example, one under the han The well-known plastic "Lucalen", the particularly good one Has adhesive properties and by adding soot receives the required electrical conductivity.

Der Vorteil der Erfindung besteht darin, daß das relativ auf­ wendige Verfahren des Aufbringens der Silberschichten auf die Piezokeramiken vollständig entfällt. Außerdem werden die Silber­ elektroden durch die preiswerten Schmelzkleberelektroden er­ setzt.The advantage of the invention is that it is relatively agile method of applying the silver layers to the  Piezo ceramics are completely eliminated. In addition, the silver electrodes through the inexpensive hot melt adhesive electrodes puts.

Für das Aufbringen des Schmelzklebers auf die Piezokeramik ste­ hen prinzipiell unterschiedliche Varianten zur Auswahl:.For applying the hot melt adhesive to the piezoceramic ste basically different variants to choose from.

  • - ausgeschnittene Folienronde,- cut out blank,
  • - in Lösungsmittel gelöster Schmelzkleber,- hot melt adhesive dissolved in solvent,
  • - durch Wärme plastifizierter Schmelzkleber.- hot melt plasticized adhesive.

Die beschichtete Piezokeramik kann bei der späteren Montage über die Schmelzkleberschicht direkt elektrisch kontaktiert und mechanisch befestigt werden.The coated piezoceramic can be used for later assembly electrically contacted directly via the hot melt adhesive layer and mechanically attached.

Die Erfindung wird anhand der Figur erläutert:The invention is explained with reference to the figure:

Mit 1 ist eine Piezokeramik bezeichnet, die beidseitig mit Elektroden 2, 3 aus rußgefülltem Schmelzkleber beschichtet ist. 1 designates a piezoceramic which is coated on both sides with electrodes 2 , 3 made of soot-filled hot melt adhesive.

Die Verwendung von rußgefüllten und dadurch elektrisch leiten­ den Schmelzkleber-Elektroden ist nicht auf die Verwendung bei Piezokeramiken beschränkt.The use of soot-filled and therefore electrically conductive The hot melt adhesive electrodes is not to be used on Piezoceramics limited.

Claims (4)

1. Piezokeramikscheibe, die beidseitig mit Elektroden versehen ist, dadurch gekennzeichnet, daß die Elektroden (2, 3) aus einem mit rußgefüllten und dadurch elek­ trisch leitenden Schmelzkleber bestehen und auf der Piezokera­ mikscheibe (1) ohne Zwischenschicht aufgebracht sind.1. Piezoceramic disk, which is provided on both sides with electrodes, characterized in that the electrodes ( 2 , 3 ) consist of a soot-filled and thus electrically conductive hot melt adhesive and are applied to the Piezokera mic washer ( 1 ) without an intermediate layer. 2. Piezokeramikscheibe nach Anspruch 1, dadurch ge­ kennzeichnet, daß die Elektroden (2, 3) als ausge­ schnittene Folienronde aufgeklebt sind.2. Piezoceramic disc according to claim 1, characterized in that the electrodes ( 2 , 3 ) are glued on as a cut-out film disc. 3. Piezokeramikscheibe nach Anspruch 1, dadurch ge­ kennzeichnet, daß die Elektroden aus in Lösungsmit­ tel gelöstem Schmelzkleber gebildet werden.3. Piezoceramic disc according to claim 1, characterized ge indicates that the electrodes are in solution tel dissolved hot melt adhesive are formed. 4. Piezokeramikscheibe nach Anspruch 1, dadurch ge­ kennzeichnet, daß die Elektroden aus einem durch Wärme plastifiziertem Schmelzkleber hergestellt werden.4. Piezoceramic disc according to claim 1, characterized ge indicates that the electrodes are made by a Heat plasticized hot melt adhesive can be produced.
DE3824139A 1988-07-15 1988-07-15 Electrodes for piezoceramics Ceased DE3824139A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3824139A DE3824139A1 (en) 1988-07-15 1988-07-15 Electrodes for piezoceramics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3824139A DE3824139A1 (en) 1988-07-15 1988-07-15 Electrodes for piezoceramics

Publications (1)

Publication Number Publication Date
DE3824139A1 true DE3824139A1 (en) 1990-01-25

Family

ID=6358803

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3824139A Ceased DE3824139A1 (en) 1988-07-15 1988-07-15 Electrodes for piezoceramics

Country Status (1)

Country Link
DE (1) DE3824139A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228312A1 (en) * 1992-08-26 1994-03-10 Licentia Gmbh Ultrasonic sound generating motor - has piezoceramic ultrasonic oscillator attached to stator by double-sided conducting adhesive foil using metal particles in base
DE202005002216U1 (en) * 2005-02-11 2006-06-22 Argillon Gmbh Piezoelectric element

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2718759A1 (en) * 1977-01-19 1978-07-20 Buchberger Wilhelm GRINDING PIECE FOR COLLECTORS OF ELECTRIC TRACKS
DE3217723A1 (en) * 1981-05-11 1982-12-02 Sumitomo Chemical Co., Ltd., Osaka CONDUCTIVE ADHESIVE PASTE
DE2524640C2 (en) * 1974-06-04 1983-07-28 Exxon Research and Engineering Co., 07036 Linden, N.J. Electrically conductive polyolefin preparation and process for its manufacture
DE3310589A1 (en) * 1983-03-23 1984-09-27 Siemens AG, 1000 Berlin und 8000 München SYNTHETIC RESIN IMPREGNATED PIEZOCERAMIC BODY
DE3434729A1 (en) * 1984-09-21 1986-04-03 Siemens AG, 1000 Berlin und 8000 München Flexural element made of piezoceramic, and method for the fabrication thereof
DE3504011A1 (en) * 1985-02-06 1986-08-07 Siemens AG, 1000 Berlin und 8000 München Making contact with oscillating components by means of conductive rubber
EP0273003A1 (en) * 1986-10-20 1988-06-29 Ciba-Geigy Ag Potentially adhesive electrically conductive composition

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2524640C2 (en) * 1974-06-04 1983-07-28 Exxon Research and Engineering Co., 07036 Linden, N.J. Electrically conductive polyolefin preparation and process for its manufacture
DE2718759A1 (en) * 1977-01-19 1978-07-20 Buchberger Wilhelm GRINDING PIECE FOR COLLECTORS OF ELECTRIC TRACKS
DE3217723A1 (en) * 1981-05-11 1982-12-02 Sumitomo Chemical Co., Ltd., Osaka CONDUCTIVE ADHESIVE PASTE
DE3310589A1 (en) * 1983-03-23 1984-09-27 Siemens AG, 1000 Berlin und 8000 München SYNTHETIC RESIN IMPREGNATED PIEZOCERAMIC BODY
DE3434729A1 (en) * 1984-09-21 1986-04-03 Siemens AG, 1000 Berlin und 8000 München Flexural element made of piezoceramic, and method for the fabrication thereof
DE3504011A1 (en) * 1985-02-06 1986-08-07 Siemens AG, 1000 Berlin und 8000 München Making contact with oscillating components by means of conductive rubber
EP0273003A1 (en) * 1986-10-20 1988-06-29 Ciba-Geigy Ag Potentially adhesive electrically conductive composition

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
DE-Z: MÜLLER-DITTMANN, Hansjürgen: Elektrisch leitfähige Elastomere als Kontaktelemente in elektronischen Schaltungen. In: Radio Fernsehen Elektronik, 1979, Bd. 28, H.9, S. 584 *
DE-Z: URBIG, Jürgen et. al.: Über das Kontaktver- halten elektrisch leitfähiger Elastomere auf Silikonkautschukbasis. In: Radio Fernsehen Elektronik, 1979, Bd. 28, H. 9, S. 586 *
JP 61 210686 A. In: Patents Abstracts of Japan, E-479, February 12, 1987, Vol. 11, No. 46 *
US-Z: Chemical Abstracts 1978, Vol. 89, No. 6, Ref. 44769z *
US-Z: Chemical Abstracts 1979, Vol. 90, No. 22, Ref. 169824r *
US-Z: ENGLER, E.M. et. al.: Additives for Carbon- Loaded Polymers. In: IBM Technical Disclosure Bulletin, 1984, Vol. 27, Nr. 7A, S. 4049 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228312A1 (en) * 1992-08-26 1994-03-10 Licentia Gmbh Ultrasonic sound generating motor - has piezoceramic ultrasonic oscillator attached to stator by double-sided conducting adhesive foil using metal particles in base
DE202005002216U1 (en) * 2005-02-11 2006-06-22 Argillon Gmbh Piezoelectric element

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