DE19502750A1 - Circuit board cleaning brush with anti-electrostatic-charge feature - Google Patents

Circuit board cleaning brush with anti-electrostatic-charge feature

Info

Publication number
DE19502750A1
DE19502750A1 DE19502750A DE19502750A DE19502750A1 DE 19502750 A1 DE19502750 A1 DE 19502750A1 DE 19502750 A DE19502750 A DE 19502750A DE 19502750 A DE19502750 A DE 19502750A DE 19502750 A1 DE19502750 A1 DE 19502750A1
Authority
DE
Germany
Prior art keywords
circuit board
brush
brush device
brushes
electrostatic
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Withdrawn
Application number
DE19502750A
Other languages
German (de)
Inventor
Hans Bell
Christian Ruminski
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.)
Deutsche Telephonwerke und Kabelindustrie AG
Original Assignee
Deutsche Telephonwerke und Kabelindustrie 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 Deutsche Telephonwerke und Kabelindustrie AG filed Critical Deutsche Telephonwerke und Kabelindustrie AG
Priority to DE19502750A priority Critical patent/DE19502750A1/en
Publication of DE19502750A1 publication Critical patent/DE19502750A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B6/00—Cleaning by electrostatic means
    • 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
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/26—Cleaning or polishing of the conductive pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam
    • 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
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0254—High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
    • H05K1/0257—Overvoltage protection
    • H05K1/0259—Electrostatic discharge [ESD] protection
    • 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
    • H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
    • H05K2203/0257—Brushing, e.g. cleaning the conductive pattern by brushing or wiping
    • 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
    • H05K2203/08—Treatments involving gases
    • H05K2203/081—Blowing of gas, e.g. for cooling or for providing heat during solder reflowing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cleaning In General (AREA)

Abstract

An air brush device for cleaning circuit boards uses an electrically neutral material for the brush and during the brushing process the brush is 'rinsed' with ionised air, while the circuit board surface to be processed is streamed with ionised air. The brush is shaped like a roller or more specifically like a wheel.

Description

Die Erfindung betrifft eine Bürsteneinrichtung für Leiterplatten zum Entfernen von Verunreinigungen.The invention relates to a brush device for Printed circuit boards for removing contaminants.

Nach dem Löten von Leiterplatten, z. B. mittels Durchlauf- Lötanlagen nach dem Wellen-Lötverfahren oder Reflow-Verfahren, können technologisch bedingte Verunreinigungen, wie z. B. Lotperlen auf der gelöteten Oberfläche der Leiterplatte vorhanden sein.After soldering circuit boards, e.g. B. by means of continuous Soldering systems according to the wave soldering process or reflow process, Technologically caused impurities, such as. B. Solder pearls on the soldered surface of the circuit board to be available.

Diese Verunreinigungen werden allgemein durch intensives Bürsten der Oberfläche beseitigt. Da Leiterplatten vielfach Bauelemente tragen, die gegen elektrostatische Aufladungen zu schützen sind, sind beim Bürsten derartige Aufladungen zu verhindern. Zudem sind die Leiterplatten- Materialen, beispielsweise Epoxidharz-Glasfaserlaminat, durch Reibung elektrostatisch aufladbar. Diese Aufladungen können durch geeignete Materialwahl für die Bürsten verringert werden, sind jedoch nicht völlig auszuschließen.These contaminants are generally caused by intensive brushing of the surface eliminated. Because circuit boards often wear components that are electrostatic Charges are to be protected when brushing To prevent charging. In addition, the circuit board Materials, for example epoxy resin-glass fiber laminate Friction can be charged electrostatically. These charges can reduced by suitable choice of material for the brushes cannot be completely ruled out.

Weiterhin ist bekannt, derartige Aufladungen durch Bürsten in einer mit Wasserdampf gesättigten Atmosphäre zu neutralisieren. Dabei werden die Bauelemente und die Leiterplatten erhöhter Feuchtigkeit ausgesetzt. Dies ist für viele Bauelemente nicht akzeptabel. Außerdem sind die technischen Erfordernisse zum Erzeugen einer geeigneten, mit Wasserdampf gesättigten Atmosphäre relativ kompliziert und somit wirtschaftlich aufwendig.It is also known to brush such charges in an atmosphere saturated with water vapor neutralize. The components and the Printed circuit boards exposed to increased moisture. This is for many components not acceptable. Besides, they are technical requirements for generating a suitable, with Water vapor saturated atmosphere is relatively complicated and therefore economically complex.

Der Erfindung lag die Aufgabe zugrunde, eine Bürsteneinrichtung zu schaffen, die durch intensives Bürsten Verunreinigungen der gelöteten Leiterplatte beseitigt, ohne eine elektrostatische Aufladung zu erzeugen und die einen geringen wirtschaftlichen Aufwand erfordert. The invention was based on the object To create brush furnishings by intensive brushing Impurities in the soldered circuit board are removed without generate an electrostatic charge and some requires little economic effort.  

Diese Aufgabe ist durch die Erfindung gelöst, wie sie im Patentanspruch 1 dargelegt ist. Weitere vorteilhafte Maßnahmen sind Gegenstand der Unteransprüche.This object is achieved by the invention, as in Claim 1 is set out. Other advantageous measures are the subject of the subclaims.

Die Bürsteneinrichtung verwendet Bürsten aus elektrisch neutralem Material. Die Bürsten, beispielsweise als Walzen oder Räder ausgebildet, werden von ionisierter Luft umspült. Ebenso wird die zu behandelnde Leiterplattenoberfläche mit ionisierter Luft beflutet.The brush device uses electric brushes neutral material. The brushes, for example as rollers or wheels formed, are washed around by ionized air. The PCB surface to be treated is also included ionized air flooded.

Durch diese Maßnahmen werden elektrostatische Aufladungen während des Bürstvorganges vermieden.Through these measures, electrostatic charges avoided during the brushing process.

Die Bürsteneinrichtung kann als eigenständiger Modul ausgebildet oder in die Austrittskammer einer Lötanlage integriert sein.The brush device can be used as an independent module trained or in the outlet chamber of a soldering system be integrated.

Gegenüber der eingangs beschriebenen Lösung, Wasserdampf in gesättigter Atmosphäre zu verwenden, ist die Nutzung ionisierter Luft wirtschaftlicher. Außerdem sind Beschädigungen von Bauteilen durch Wasserdampf ausgeschlossen.Compared to the solution described above, water vapor in To use a saturated atmosphere is the use ionized air more economical. Also are Damage to components from water vapor is excluded.

Claims (5)

1. Bürsteneinrichtung für Leiterplatten zum Entfernen von Verunreinigungen, dadurch gekennzeichnet, daß die Bürsten aus elektrisch neutralem Material bestehen und daß während des Bürstvorganges die Bürsten von ionisierter Luft umspült und die zu bearbeitende Leiterplattenoberfläche mit ionisierter Luft beflutet werden.1. Brush device for printed circuit boards for removing contaminants, characterized in that the brushes consist of electrically neutral material and that the brushes are washed by ionized air during the brushing process and the printed circuit board surface to be processed is flooded with ionized air. 2. Bürsteneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Bürsten walzenförmig gestaltet sind.2. Brush device according to claim 1, characterized in that the brushes are roller-shaped. 3. Bürsteneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Bürsten radförmig ausgebildet sind.3. Brush device according to claim 1, characterized in that that the brushes are wheel-shaped. 4. Bürsteneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung als eigenständiger Modul ausgebildet ist.4. Brush device according to claim 1, characterized in that the facility is designed as an independent module is. 5. Bürsteneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung in die Austrittskammer einer Lötanlage integriert ist.5. Brush device according to claim 1, characterized in that the device in the exit chamber of a soldering system is integrated.
DE19502750A 1995-01-23 1995-01-23 Circuit board cleaning brush with anti-electrostatic-charge feature Withdrawn DE19502750A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19502750A DE19502750A1 (en) 1995-01-23 1995-01-23 Circuit board cleaning brush with anti-electrostatic-charge feature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19502750A DE19502750A1 (en) 1995-01-23 1995-01-23 Circuit board cleaning brush with anti-electrostatic-charge feature

Publications (1)

Publication Number Publication Date
DE19502750A1 true DE19502750A1 (en) 1996-07-25

Family

ID=7752589

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19502750A Withdrawn DE19502750A1 (en) 1995-01-23 1995-01-23 Circuit board cleaning brush with anti-electrostatic-charge feature

Country Status (1)

Country Link
DE (1) DE19502750A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786277A1 (en) * 1968-09-10 1972-01-20 Hans Gruenenfelder Device for the electrostatic discharge of moving material webs and their simultaneous dedusting
EP0094472A1 (en) * 1981-03-10 1983-11-23 Bycosin AB Device for cleaning objects by scrubbing in the presence of solvent
US4589926A (en) * 1983-06-17 1986-05-20 Ab Holmstrands Platindustri Method and compact machine for treating printed circuit cards
US4800611A (en) * 1986-04-16 1989-01-31 Hakuto Co., Ltd. Plate cleaning apparatus and cleaning roller therefor
US5008968A (en) * 1989-07-27 1991-04-23 Markel Industries, Inc. Sheet material cleaning machine
GB2243538A (en) * 1990-04-30 1991-11-06 Seiichiro Aigo Apparatus for washing semiconductor materials
DE3942422C2 (en) * 1989-12-21 1992-01-02 Peter 8122 Penzberg De Kist
DE4306734A1 (en) * 1993-03-04 1994-09-08 Heidelberger Druckmasch Ag Brush in rotary printing machines

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786277A1 (en) * 1968-09-10 1972-01-20 Hans Gruenenfelder Device for the electrostatic discharge of moving material webs and their simultaneous dedusting
EP0094472A1 (en) * 1981-03-10 1983-11-23 Bycosin AB Device for cleaning objects by scrubbing in the presence of solvent
US4589926A (en) * 1983-06-17 1986-05-20 Ab Holmstrands Platindustri Method and compact machine for treating printed circuit cards
US4800611A (en) * 1986-04-16 1989-01-31 Hakuto Co., Ltd. Plate cleaning apparatus and cleaning roller therefor
US5008968A (en) * 1989-07-27 1991-04-23 Markel Industries, Inc. Sheet material cleaning machine
DE3942422C2 (en) * 1989-12-21 1992-01-02 Peter 8122 Penzberg De Kist
GB2243538A (en) * 1990-04-30 1991-11-06 Seiichiro Aigo Apparatus for washing semiconductor materials
DE4306734A1 (en) * 1993-03-04 1994-09-08 Heidelberger Druckmasch Ag Brush in rotary printing machines

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELLIS,B.N.: Reinigen in der Elektronik, Eugen G. Leuze Verlag, Saulgau/Württ, 1989, S.235- S.237 *
KRETZSCHMAR,Harry: Reinigen von Leiterplatten. In: Galvanotechnik, Saulgau 65, 1974, Nr.1, S.11-18 *

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee