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September 2007

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Subject:
From:
"Tan, Geok Ang" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Tan, Geok Ang
Date:
Fri, 7 Sep 2007 08:09:23 +0800
Content-Type:
text/plain
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text/plain (105 lines)
 
Base on past experience, the product might failure after about 4years as
the resistance gone up to "un-acceptable" level of ours products.


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Amol (349)
Sent: Friday, September 07, 2007 12:14 AM
To: [log in to unmask]
Subject: Re: [TN] Backplane PCB surface finish

Thanks everyone for their inputs....Geok Ang, can you please describe in
detail, the reliability issues you mention?

Amol



-----Original Message-----
From: Tan, Geok Ang [mailto:[log in to unmask]]
Sent: Thursday, September 06, 2007 10:13 AM
To: TechNet E-Mail Forum; Kane, Amol (349)
Subject: RE: [TN] Backplane PCB surface finish

 Most backplane uses press-fit connector with tin plate...... Tin vs.
gold contacts will cause some long term reliability issue. If you
current products are having this process, then it might be ok for your
level of products.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Amol (349)
Sent: Thursday, September 06, 2007 10:04 PM
To: [log in to unmask]
Subject: [TN] Backplane PCB surface finish

Dear Technetters,
Are there some distinct set of considerations that apply only to
backplane PCBs? A question was raised regarding the suitability of ENIG
finish for backplane assemblies. We are using ENIG for other PCBs and so
far, have not run into issues that can be traced back to the ENIG
finish. What are some unique considerations that must be taken into
account when specifying a finish for a backplane assembly?

Thanks in advance,
Amol




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