Electronics Forum | Wed Oct 17 17:36:32 EDT 2018 | davidsmullins
Thanks for all the input! I should clarify a couple things. We are a contract manufacturer; we simply build to our customer's design prints. This particular board, we outsourced because of some requirements for processes we don't do in-house. So, we
Electronics Forum | Thu Jul 23 13:23:45 EDT 2020 | bmalhi
Small components blown issue could be due to one of the below. - Process issue; Make sure solder paste is fresh, if flux is drying out it will not hold parts properly. Check downward pressure of Pick Place. SOT may have to be pushed a little harder i
Electronics Forum | Mon Sep 20 12:19:13 EDT 1999 | Brian
| Hi all, | | We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we need your advice. | | We are producing VGA cards and mother boards for PC's all components to be wave soldered are TH, the S
Electronics Forum | Mon Sep 13 06:23:06 EDT 1999 | Earl Moon
| | We have a product, with various PWBs, with over 600 parts each one (We are a low Volume/high mix company with an average component placement per PCB between 250 to 300 parts). This PWBs have 7 to 10, 20 mils pitch parts. We are having problems wi
Electronics Forum | Wed Dec 30 17:20:40 EST 1998 | Marc P.
| Does anyone have angles on how to reduce N2 consumption at reflow process (i.e. process control equipment, etc.)? | | Any help would be appreciated | There are a number of ways to reduce consumption: 1)One way to look at consumption is to view i
Electronics Forum | Tue Apr 21 21:30:59 EDT 1998 | Jon Medernach
I, for one greatly appreciate the free and open forum! You must have a balance between those who are (at least in their own minds) process experts and the "sales weasels". Is a consultant who uses the NET to promote their business any different t
Electronics Forum | Fri Nov 30 18:22:40 EST 2007 | mika
Hi Paul M, There are no silly questions but silly answers.. and here is maybe a few if I understand you correctly: If you consider place anything less than a 1.27mm (50mil) pitch component down or a chip less than a 1210, hey it maybe don't even work
Electronics Forum | Wed Aug 04 12:35:15 EDT 1999 | Dave F
| | | | I have been asked to supply a maximum shelf life for our assemblied PCB's. I realise this is dependent on so many factors- temperature, humidity, no of layers etc. But does anyone have a formulae for calculating shelf life, or does anyone kno
Electronics Forum | Fri Apr 29 14:16:16 EDT 2011 | ppcbs
Below is the long explanation. This defect is most commonly found with BGA components, but can arrise with all components. I see it happening more now with lead free boards that are being assembled with a no clean flux. Best short term remedy is t
Electronics Forum | Thu Nov 12 04:40:03 EST 1998 | Galen
| Scott - Good to see things are going well for you. With regard to your comments, Quad has introduced a complete line of Semi-conductor/APT machines (Q Series) that support both SMT and Semi-conductor applications. The machines were introduced in
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