Electronics Forum | Mon Aug 08 18:59:49 EDT 2016 | oleksz
What should be solder paste stencil aperture proper size in comparison with PCB copper pad for lead free technology? When designing PCB foortprints I was using solder paste pad undersize of 2.5 mils (0.06mm) per side (solder paste pad size was 2.5 m
Electronics Forum | Mon Jul 26 14:16:54 EDT 2010 | jdengler
I don't find this P/N in my list of 2.5mm IP2 nozzles. But we buy from and have bad nozzles repaired by SMT Researh. www.smtresearch.com Jerry
Electronics Forum | Thu Nov 02 22:11:46 EST 2000 | Dason C
Please check with Fab house, what is the thickness of the immersion gold if the gold thicknesss is less than say 2.5 micron, you will found dewetting or open. It is recommend the gold thickness is around 5 micron. Good Luck Dason
Electronics Forum | Tue Apr 18 17:34:55 EDT 2000 | Chris
Can someone explain what ageing means in terms of chip caps. Capacitor vendors state 7% per decade hour or 2-5-1 per decade hour. What does this mean? I think capacitor values lower over time but what is a decade hour. Thanks, Chris
Electronics Forum | Mon Jan 22 21:24:33 EST 2001 | edger_w
Hi! Mike My company is using the electric dry box and it can controlled less than 10% within 2.5 hours if we are not going to open the door. In normal working environment and it still can't control around 30%. Is it something that you are looking
Electronics Forum | Fri Mar 16 15:52:22 EST 2001 | blnorman
We screen print epoxy adhesive, place components then run the board through our adhesive oven (2-5 min cure at 150�C). This is in addition to reflow.
Electronics Forum | Fri Mar 31 21:33:56 EST 2006 | mrduckmann2000
jdumont, We have a capacitor and an inductor that stick up approx 2.5", any problems with the spray nozzle working around tall objects? Thank you for your input.
Electronics Forum | Tue Feb 13 15:27:09 EST 2007 | davef
Roland On the main Forum page, the ads in the right margin are back to their old piggyselves again. They've bloated themselves upto 2.5 inches wide from their former svelt 1.5 inches wide. Portion control and exercise, portion control and exercis
Electronics Forum | Thu Apr 12 08:16:19 EDT 2007 | davef
Toe down solution: * Land pattern design * Solder stencil design * Proper component fabrication Normal gull wing lead solder requirement: Solder must extend to the mid-point of the outside of the lead bend.
Electronics Forum | Wed Sep 02 14:25:38 EDT 2009 | esoderberg
I have always gone with blade length equal to board width plus 2 inches - 1 inch either side. Is there any technical reason that I could not use a longer blade, say 2.5 inches on either side?
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