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Applications for Bonding Technologies

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===9.3 Electroless Metal Deposition on Printed Circuit Boards===
 
Printed circuit boards are also used as circuit carriers. Since many of the conductive structures are not electrically connected on the circuit board electroless processes are applied to create the final surface coatings (see chapter 7.1.2). Besides bonding to Nickel/Gold surfaces soldering is the most widely used process to create conductive connections. This can also be performed on electroless deposited tin surface coatings.
 
Fig. 9.2: Electroless deposition on a printed circuit board
 
===References===
 
Kaspar, F.: Drahtbonden zur Kontaktierung auf elektronischen Baugruppen. VDE-Fachbericht 55 (1999) 97-103
 
Freudenberger, R.; Ganz, J.; Kaspar, F.; Marka, E.: REDOR reduktives Goldbad. Metalloberfläche 49 (1995) H.11, 859-862
 
Falk, J.; Lutz, K.; Berchthold, L.; Ritz, K.: Oberflächen zum Drahtbonden. DVS-Bericht 141: Verbindungstechnik in der Elektronik. (1992) 178
 
Sheaffer, M.: Drahtbonden für neue Bauelementeumhüllungen. DVS-Bericht 141: Verbindungstechnik in der Elektronik. (1992) 48
DVS-Merkblatt 2810: Drahtbonden, Düsseldorf: DVS-Verlag 1992
 
Ganz, J.; Kaspar, F.: AlSi-plattierte Bänder für Bondverbindungen mit hoher Zuverlässigkeit in der Gehäusetechnik. PLUS 11 (2005) 2057 -2058