Electronics Forum | Fri Apr 04 05:02:08 EST 2003 | alexyalung
Hi All, The best solution we made on our tombstone defects is component Z dimension set at pick and place machine. Usually for 0402 components Z height is pre-set by the machine at 0.5 mm, by reducing it to 0.35mm we have solve our tombstone problem
Electronics Forum | Wed Apr 23 07:19:12 EDT 2003 | bernard
Hi pete, We have being using the 8mm agilis feeder for nearly 12 months now, and contary to what you are finding the great advantage of this Mydata feeder system is that we loose very few components, you need no lead in etc. ( compared to other mach
Electronics Forum | Thu Apr 24 17:49:37 EDT 2003 | pbc1963
Ken, We're talking pennies. Even though the cost of a reel would be cheaper than trying to account for lost components I have to come close in figuring this attrition amount. Reason being is to try and prevent unplanned shortages. I am in constant
Electronics Forum | Wed Apr 16 08:43:00 EDT 2003 | davef
Given that the LED work properly after being touched-up and that you don't have problems with other components, you may not be wetting the LED termination solderability protection during your normal reflow. Use a profiler to check the temperature on
Electronics Forum | Fri May 02 12:54:55 EDT 2003 | Chris Lampron
Hi LWEI, This is not a permanent fix for the problem. We have had similar experiences with double sided boards. As a fix, we have applied water soluble solder mask to the edges of the component. This holds the component adequately for second side pr
Electronics Forum | Tue May 06 14:52:37 EDT 2003 | bremerg
Pictures are now located at http://www.stevezeva.homestead.com/ These components are 2W resistors that only see 1/2W at max. during normal use. I have contacted IRC still wqaiting for a response. The resistors were tested as good. But the circuit
Electronics Forum | Wed May 07 20:10:24 EDT 2003 | bayanbaru
I am from the Quality Dept. There is this SMT defect that were root cause to defective feeder that lead to component overturn during feeder indexing. I ask for corrective action from the SMT engineer but apparently there is not much he can do except
Electronics Forum | Thu Jun 19 10:18:22 EDT 2003 | Dave Milk
Hi Kevin, I hope this info is timely. To qualify a component for lead free use you need to use a lead free paste. The various lead free pastes have very different wetting capabilities and temperatures required to cause them to reflow properly. Yo
Electronics Forum | Mon Jun 23 11:02:33 EDT 2003 | Kris
Hi, No Major issue using lead-free plated components in tin-lead as long as Sn/Bi is not the finish. I think some customer might be worried about low melting phase. More voiding may be seen in case of ceramic capacitors used with tin-lead. It is
Electronics Forum | Tue Jul 08 20:14:50 EDT 2003 | davef
YiEngr, MA/NY DDave: Please excuse the coarse language ... horse patoey!!! Companies been building reliable products with no-lead components and Sn/Pb solder for years. For example, TI has been shipping parts with leads whose solderability is prote
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