Professor Kao,
What is the issue with Ni and SAC305 that concerns you?
Best Regards,
Danielle
Danielle L. Casha
Process Technician
EPM
Tel: 905-479-6203 ext. 272
Fax: 905-479-6990
Website: www.epmnet.com
-----Original Message-----
From: C. Robert Kao [SMTP:[log in to unmask]]
Sent: Friday, July 09, 2004 10:51 PM
To: [log in to unmask]
Subject: Re: [LF] SAC Alloy of Choice - Continental China
Yes,
Here in Taiwan, almost all the manufacturers are asked to use
(Sn/Ag3.0/Cu0.5) by their customers. I am not very comfortable with this
particular composition, especially when used with the Ni-bearing surface
finish.
C. Robert Kao, Professor
Department of Chemical & Materials Engineering
National Central University
Jhongli City
Taiwan Tel/Fax: +886-3-422-7382
> It varies, but I have mostly seen SAC305 (Sn/Ag3.0/Cu0.5).
>
> Regards,
> David Suraski
> AIM
>
> -----Original Message-----
> From: MA/NY DDave [mailto:[log in to unmask]]
> Sent: Thursday, July 08, 2004 11:00 PM
> To: [log in to unmask]
> Subject: [LF] SAC Alloy of Choice - Continental China
>
> Hi IPC LF Listservers,
>
> I was wondering if anyone knows if in China, CEMs (Contract Electronic
> Manufacturers) or Electronics Manufacturers have a preferred SAC alloy.
> SnAg2.5Cu, SnAg3.0Cu0.5, etc, - - -
>
> I expect they might be using all the combinations yet I would like to
> pick your brains on this question. Is there one particular combination
> you have seen most pervasive.
>
> I mean the China that is on the continent.
>
>
> Yours in Engineering, Dave
> Y i Engr, MA/NY DDave
>
> P.S. If anyone remembers this as an old old topic please let me know
> what search term to utilize.
>
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