Electronics Forum | Tue Jun 07 19:24:26 EDT 2005 | Joseph
Dear all, Recently we encountered some functionality failure when using lead-free component(Sn99.3/Cu0.7)at SnPb(Sn63Pb37) wave soldering process. Can lead-free component use at non-lead free process? Any input/idea are much appreciated. Rgds
Electronics Forum | Wed Aug 03 14:48:19 EDT 2005 | cyber_wolf
Mike, Lets say I am a U.S. based company, and I wanted your organization to "assess" a machine in Malaysia. Could you give us folks a ball park figure of what that might cost ? Doesn't have to be exact....Just a ball park figure........
Electronics Forum | Wed Feb 08 12:23:12 EST 2006 | slthomas
Just to nitpick a little, collecting defect data and reacting to it really isn't an SPC function. Cal's recommendations (determine critical processes, assess process capability and acceptable limits) are spot on and are pretty much the definition of
Electronics Forum | Sun Feb 26 13:49:18 EST 2006 | masrimhd
Hi, We will run a no-clean wave solder process to assemble TV boards. What about incorporating a ROSE Test equipment (Ionograph, zero-ion, Omega Meter) in the process? Is it recommended, helpful or unnecessary? I�ve read about the use and limits of
Electronics Forum | Thu Jun 29 04:34:22 EDT 2006 | Rob
Just because someone has great equipment doesn't mean they are any good at assembling quality boards. By all means check out their current capacity & contingency plans, but also assess their competance levels & output quality. Set a cunning trap fo
Electronics Forum | Wed Sep 05 08:06:08 EDT 2007 | davef
The gold needs to go into the solder so the solder can form a connection between the the component and the nickel under the gold. The gold will disperse into the solder. Most of it will remain in your solder pot after board processing. Assess the c
Electronics Forum | Mon Jan 21 11:12:20 EST 2008 | davef
Just what is delaminationg during testing? Water washing should be sufficient to clean WS609. On the other hand, it's possible you're conveyor speed is too high to do a good job cleaning the high density areas. What kind of testing have you done to
Electronics Forum | Wed Mar 12 21:09:25 EDT 2008 | davef
Not so sure takt time is an appropriate for measure to assess a single process, like a reflow oven. Look here: http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLC,GGLC:1969-53,GGLC:en&q=takt+time+formula+
Electronics Forum | Thu Aug 14 07:42:28 EDT 2008 | davef
You can assess these costs anyway that makes sense to you. These machinery costs are 'direct' to the product. You could call them manufacturing overhead or machine cost. It all depends on what makes sense. As an example, depending on the products you
Electronics Forum | Fri Jul 24 07:43:56 EDT 2009 | davef
Your customer is correct. You are doing something wrong in your hand soldering process. Solder balls are a process indicator. Areas to assess are: * Moisture content of the bare board * Thickness of the copper plating in the through holes * Temperatu