Electronics Forum | Sat Jun 19 17:05:25 EDT 2010 | bob2000
Thanks for sharing your work experience. I found a reference material with IPC standard (IPC 610) that specifies an exact heigth that a capacitor needs to be placed, I will check this standard specifications in more depth.
Electronics Forum | Thu Feb 04 21:17:41 EST 1999 | Chris G.
What allowances are people using out there for components off-pad, we currently use 50% of lead width without breaking trace/component clearances but we have a customer demanding 25% allowance ? IPC states: 50% off pad for class 1 and 2 25% off
Electronics Forum | Wed Aug 22 10:57:59 EDT 2001 | wbu
Hi Steven, BGA�s are known for their ability to self align and from own experiance they do. There�s enough documentation on this one available (...don�t have the links present like Dave but I�m sure he will give you enough to spend some evenings rea
Electronics Forum | Mon Jul 14 11:59:41 EDT 2014 | rgduval
I've primarily used MyData equipment, personally, and, optically centered devices definitely take longer than mechanically centered parts on a MyData, owing to the construction of the machine. With a fixed upward looking camera, the head has to pick
Electronics Forum | Sat Feb 18 09:20:09 EST 2012 | davef
The 3-Tier PCB library concept was originally created by IEC (International Electromechanical Commission) in 1999 and introduced to IPC in 2000. The concept had to be created as a solution for high density packaging for hand held devices to ruggedize
Electronics Forum | Sun Feb 19 15:21:01 EST 2012 | davef
Not sure how 88, 55 and 44 tie to other things, but if you talk IPC, you'll have a point of reference that's portable between suppliers
Electronics Forum | Fri Nov 25 15:52:40 EST 2011 | davef
"IPC-2221 - Generic Standard On Printed Board Design" talks to fiducials. Anther take on fiducials says they shall meet the following requirements. * Make fiducials 1 - 1.5 mm diameter circle. * Cover fiducials with tin. * Keep solder mask opening at