Electronics Forum | Mon Apr 15 15:34:07 EDT 2002 | Bob
Hi, I have loads of experience with QP132's. You can change over product quite easily depending on a few things: - � The board sizes should be the same otherwise pallet adjustment can take an hour or so. � If you can fit all the feeders on one set-u
Electronics Forum | Tue Apr 16 13:59:33 EDT 2002 | paulausten
They work great as long as your conveyor speed > has been calibrated and checked on some type of > PM schedule. On some oven types these sensors can > warn you to possible problems with the conveyor > speed. Say the oven is calculating that the b
Electronics Forum | Mon Apr 22 20:55:00 EDT 2002 | ianchan
Hi, this is not really a technical solution, just a feedback. we too have a model series using the same WS paste type. it gives a dull solder joint with white residue that can be marginally removed after post-DI water rinse (ie. not 100% removed).
Electronics Forum | Tue Apr 23 01:39:29 EDT 2002 | ianchan
Hi, 1) Was reading the links provided by Dave F, under the thread "waste" which was about the ESD grounding of drums. 2) thanks to Dave F, now have "back-bone" refer sources to explain ESD terms to those who ask and seek to better understand this n
Electronics Forum | Fri Apr 26 10:42:28 EDT 2002 | Jim M.
I worked for a telecom company that had sites in the deserts, jungles, mountains and regular built up area's. All boards were built using Aim 291/293 No clean solder paste. (all boards built to Bellcore standard) The boards were coated with Dymax ur
Electronics Forum | Mon Apr 29 22:32:59 EDT 2002 | davef
See, I didn�t bite on you zinc diffusion trick that you tried to pull last week. Understand, in this response, I am NOT trying to bust you. I�m trying to determine what you are looking to understand. [Some times I get so locked into talking a cert
Electronics Forum | Fri May 03 18:55:41 EDT 2002 | davef
Interesting situation. Everything [ie, intermetallic compounds, solderability, etc] is speculative without knowing more about the materials of: * Leads. * Solderability protection. ... because suppliers use a fairly wide of materials. Your suppl
Electronics Forum | Mon May 06 11:49:20 EDT 2002 | Jacob
Hello all, I am having soldering issues with an Everlight component it is a TM4201/TR2 (Right angle IRDA with a 1mm pitch). The problem I have is that after reflow the solder joints look perfect, but during test we are losing 7 micro amps as soon as
Electronics Forum | Thu May 09 17:28:33 EDT 2002 | davef
There is no IPC specification, nor should there be. * There are just too many peculiarities in the design and fabrication of PWB. * The issue is not defining how to store boards. The issue setting expectation for reliable products and allowing you th
Electronics Forum | Wed May 15 13:11:26 EDT 2002 | fmonette
Hi Dason, Yes I was talking about the same paper. This is the best technical information available to clearly explain the physics of moisture diffusion inside a plastic package. Many of the guidelines contained in the current J-STD-033 are derived
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