Dewey, what finish alloys use up to 3% Bi?

Genny, what indications have you seen that the EU may eventually want to ban
Bi?


> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]] On Behalf Of 
> Whittaker, Dewey (AZ75)
> Sent: Thursday, January 06, 2005 10:30 AM
> To: [log in to unmask]
> Subject: Re: [LF] The use of Bismuth
> 
> 
> We are seeing components with this finish. There is data to 
> support the acceptability of a final lead finish containing 
> up to 3% Bismuth. Dewey
> 
> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]]On Behalf Of Genny Gibbard
> Sent: Thursday, January 06, 2005 9:15 AM
> To: [log in to unmask]
> Subject: [LF] The use of Bismuth
> 
> 
> So I am curious, what are people thinking about the use of 
> bismuth in lead free termination finishes.  I am not talking 
> about solder containing Bi. The only supplier I have come 
> across so far specifically mentioning they use Bi is NEC.  
> They have a doc on their website, called "Japan's best kept
> secret" http://www.cel.com/pdf/marcomnews/japan_best.pdf      
>   that claims
> that SnBi is recommended by JEITA, as opposed to the 
> recommendation of JEDEC for Matte Sn.  They make it sound as 
> if a lot of companies are using this plating, but I haven't 
> come across any other components so far that use it. The main 
> concern I have is that I keep getting the impression that the 
> next metal that the EU will be gunning for eliminating is Bi, 
> so it doesn't sound like a smart direction to go.
> 
> Thoughts?
> 
> Genny Gibbard (mailto:[log in to unmask])
> 
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