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Immersion Au and ENIG surface finishes

#19748

Immersion Au and ENIG surface finishes | 1 May, 2002

Are these 2 surface finishes the same? If not what is the difference?

Thanks

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#19749

Immersion Au and ENIG surface finishes | 2 May, 2002

They probably the same. Most likely someone is saying immersion gold [immersion Au] as a short hand for ENIG [ Electroless Nickel - Immersion Gold]. It is very uncommon to plate gold directly on copper, because gold and copper form a brittle intermetallic compound that will not solder.

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Yannick

#19754

Immersion Au and ENIG surface finishes | 2 May, 2002

Hi,

You can go to http:\\www.circuitree.com they had a supplement with the april issue of the magazine with a very good article on 4 board finish, if you are able to find it on the web site you will find all your anwser and more :)The article name was: "Board Finishes for EMS provider" by Bruce Houghton, Celestica Toronto

If you don't find it, send me a email and I will scan the article and send it to you.

Bye Yannick

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#19761

Immersion Au and ENIG surface finishes | 2 May, 2002

Hi Yannick Please sent the article "Board finishes for EMS Provider" to me as I can't find it in Circuitree. Your help is very much appreciated.

Regards

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Yannick

#19775

Immersion Au and ENIG surface finishes | 5 May, 2002

I could send you this article but I need your email:))or write one to me at yb@m2s.ca

thanks you

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