Electronics Forum | Wed Jun 24 18:44:14 EDT 2009 | mark_h
Hi Everyone My company has done loads of 0402 placements but are now required to start looking at 0201 and micro BGA placements. I’ve done loads of research and I’m happy with stencil design, area ratio, oven profile, machine requirements and paste r
Electronics Forum | Wed Jul 22 12:47:23 EDT 1998 | Earl Moon
| I'm trying to put together a set of design guides for use for new designers | in house or to be sent out for contracted layout work. I would like to start with a top ten list of things that will go wrong if rules aren't available. For example testp
Electronics Forum | Mon Feb 07 18:12:56 EST 2011 | eadthem
I do not know what software version you have, but on older versions it is best to have a mounting inspector set to be the primary and then mask out all labels and solder so it just locates the part. Then add another mounting inspector for looking at
Electronics Forum | Tue Mar 07 21:57:54 EST 2017 | ttheis
It was indeed the fact that the height sensor needle was moved away from the dispense needle. Happened to find a height probe rod with longer reach in the spare parts shipped with the machine; with the height sense probe next to the needle the machin
Electronics Forum | Fri Sep 02 16:22:37 EDT 2011 | ttaubert
Are there SMT mechanical components like that could be used for orientating PCB-level optics on the board and do not require holes in the board? Their final position would solely depend on the reflow. A height of 1/8" would be sufficient. I was con
Electronics Forum | Tue Oct 02 10:30:10 EDT 2012 | eniac
Difference in pick height from paper and embossed reel (typically) is 0.2 mm. Try to change your pick height and place height (different type of capacitors have a different height: for 100 nF 0603 and for 4.7 uF 0603 it's a big difference!). Can you
Electronics Forum | Tue Nov 12 12:49:55 EST 2002 | dragonslayr
Use an "LCR" (L= inductance, C= capacitance, R= Resistance)meter. There are several name brands to choose from (Fluke, etc.) Hand held units are relatively inexpensive. In fact, you may consider having more than one available. Receiving inspection s
Electronics Forum | Fri Aug 06 07:16:14 EDT 2004 | cyber_wolf
If your part height(thickness) is set too tall in the software, the machine will drop the component before it touches the paste. If your part height(thickness) is set too short in the software you will smash the part into the paste. This can cause da
Electronics Forum | Thu Jan 22 12:21:54 EST 1998 | Michael Allen
Is there a standard (JEDEC or other) for "lead sweep" errors on fine pitch (eg, 0.5mm) gull wing leads? Parts from one of my suppliers has a sweep error up to 6 mils; the mechanical drawing does not address lead sweep error, nor is there a true posi
Electronics Forum | Thu Oct 19 09:54:38 EDT 2006 | stepheniii
Don't confuse ROHS compliant with "able to take higher temps". In fact I think some parts lost some heat tolerance when they went ROHS compliant. Don't forget that some fire retardants are on the banned list. I do know that before we even heard of R
