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September 2001

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TechNet E-Mail Forum.
Date:
Mon, 10 Sep 2001 08:42:03 -0500
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Hi folks! The 003 PWB solderability committee would welcome the
re-activation of a wetting balance users task group! Most of the wetting
balance test procedures currently in the specification are the results of
the previous task groups efforts. One change to Neil's idea - a
specification and/or test procedure should not be "equipment" specific. The
wetting balance equipment vendors and the wetting balance equipment users
teamed together in the last task group effort to make the test method as
"equipment insensitive" as possible. I will put the topic on the committee
agenda during the Fall meeting in Orlando.

Dave Hillman
003 Committe Chair
[log in to unmask]





ngmurray <[log in to unmask]>@IPC.ORG> on 09/08/2001 04:03:07 PM

Please respond to "TechNet E-Mail Forum." <[log in to unmask]>

Sent by:  TechNet <[log in to unmask]>


To:   [log in to unmask]
cc:

Subject:  Re: [TN] Wetting Balances



Great  idea.  We use the RPS Six sigma, unfortunately.  Perhaps we should
structure three different user groups under Hillman's committee, one for
each of  the most commonly used wetting balance testers.  We are currently
doing a  lot of development based upon wetting balance analysis and are
encouraging our  PCB and component suppliers to make more active use of
wetting balance in their  solderability testing.
Neil  Murray
Technical Specialist, Component  Engineering
TRW  OSS
248-442-8428
-----Original Message-----
From: TechNet  [mailto:[log in to unmask]]On Behalf Of Bev Christian
Sent:  Friday, September 07, 2001 2:55 PM
To:  [log in to unmask]
Subject: [TN] Wetting Balances


I've  been talking to the fellows at ACI/EMPF and we have decided we would
like to  form a users group for the MUST System II Wetting Balance.

I  guess what I would like to see would be the following:
1)  Have multiple sources of advice for little problems
2)  Share info on the test parameters for new and/or weird parts.  For
example, how do you hold a 0201 in a clip made for 0805's?  How do you
hold a thumbwheel?!! How deep do you immerse some of these wonderfully
designed components that only have solderable surfaces on the vertical side
of  the part!  GRRRRRR!  I think you get the  picture.
3)  Champion using globule testing as opposed to a full solder bath  dip.
4)  Act as resource for the IPC 5-23a Task Group (J-003) and IPC 5-23b Task
Group  (J-002), if Dave Hillman and company are willing to have us.  :)
5)  Apply persuasion, if it becomes necessary, with regards to service as
the  Multicore/Loctite/Henkel transition continues.

Note, anyone is of course able to  form a similar group for other wetting
balances and we aren't making any  claims one way or the other here about
the equipment in question.

So, if you are interested, phone or e-mail  me.

regards,
Bev Christian
Materials Engineering Lab  Manager
Research in Motion
519-888-7465  x  2468


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