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Reply To: | (Leadfree Electronics Assembly Forum) |
Date: | Mon, 1 Aug 2005 15:04:06 -0500 |
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It's the IPC SPVC SAC alloy report. It runs ~$99 US for IPC members.
Well worth the bucks. Here's the link to the executive summary:
http://www.ipc.org/3.0_Industry/3.5_Councils_Associations/3.5.1_Industry
_Assoc/spvc_bro/SVPC_Final_ExecSumm.pdf
Rich - KEDS
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of No Name
Sent: Monday, August 01, 2005 1:55 PM
To: [log in to unmask]
Subject: Re: [LF] 96.5% Tin / 3.5% Silver vs. SAC305
Based on testing we have done the 96.5 Sn/3.5 Ag will behave very close
to
the SAC alloys in wavesolder and it doesn't take long to pick up some
copper and then its just like SAC 305. I have heard some say that you
may
get more voiding is SMT than you do with the SAC alloys.
Can you tell me where to get a copy of this test report?
Ken Kirby
Applications Engineer
Speedline Technologies
573-346-3341 ext 162
cell 817-946-3357
Richard
Kraszewski
<[log in to unmask]
To
COM> [log in to unmask]
Sent by: Leadfree
cc
<[log in to unmask]
>
Subject
[LF] 96.5% Tin / 3.5% Silver vs.
SAC305
08/01/05 11:17 AM
Please respond to
"(Leadfree
Electronics
Assembly Forum)"
<[log in to unmask]
>; Please respond
to
Richard
Kraszewski
<[log in to unmask]
COM>
Just reviewed the IPC SPVC report on the SAC alloys. 2 thumbs up on
that effort!!! Now for the question at hand.
Seeing that there seemed to be little performance difference amongst the
3 alloys being considered, what if you go one step further. Would all
of you think that an alloy such as 96.5 Sn/3.5 Ag would perform equally
well? Sure the melt point is ~ 4 degC higher , but with some copper
contamination whether it be in a TH or SM, won't you think the
performance would be very similar to say SAC305?
Reason I'm asking is that I'm supporting some 96.5% Tin / 3.5% Silver
processes, and need to determine if I switch them over to SAC305 or let
them continue as they are.
Your thoughts would be appreciated.
Rich K KEDS
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Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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