METHOD OF REMOVING CONTAMINATION WHILE DRILLING HOLES IN CONDUCTOR PLATE

The method uses oxidising agents, such as permanganates in aqueous solution and/or swelling agents, and employs ultrasonic treatment, and is characterised in that the circuit boards are guided horizontally during the treatment.

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Bibliographische Detailangaben
Hauptverfasser: BUARUTAA MAIYAA, HANSU YOAHIMU GURAAPENCHIN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The method uses oxidising agents, such as permanganates in aqueous solution and/or swelling agents, and employs ultrasonic treatment, and is characterised in that the circuit boards are guided horizontally during the treatment.