Electroplating of gold using a sulfite-based electrolyte

E. Smalbrugge, B. Jacobs, S. Falcone, E.J. Geluk, F. Karouta

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Electroplating of gold is often used in optoelectronic and microelectronic devices for air-bridges, heat-sinks or gold-bumps for flip-chip techniques. The gold-cyanide electrolytes, which are commonly used in gold-electroplating, are toxic and attack resist patterns causing cracks during the plating process. In this paper we report our experimental results of gold-electroplating using a sulfite-based electrolyte (NH4)3{Au(SO3)2}. This product is environment- and userfriendly and moreover the electroplating rate is good (10-50 µm/hour). Results varying current density and stirring rate will be reported.
Originele taal-2Engels
TitelProceedings of the 5th annual symposium of the IEEE/LEOS Benelux Chapter : October 30, 2000, Delft , the Netherlands
RedacteurenX.J.M. Leijtens, J.H. Besten, den
Plaats van productieDelft
UitgeverijTechnische Universiteit Delft
Pagina's143-146
ISBN van geprinte versie90-9014260.6
StatusGepubliceerd - 2000
Evenement5th Annual Symposium of the IEEE/LEOS Benelux Chapter - Delft, Nederland
Duur: 30 okt. 200030 okt. 2000

Congres

Congres5th Annual Symposium of the IEEE/LEOS Benelux Chapter
Land/RegioNederland
StadDelft
Periode30/10/0030/10/00

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