Electronics Forum | Tue Jun 29 14:44:26 EDT 2010 | rgduval
There are some good suggestions here...reflow pallets, and copper balancing. We would also suggest verifying that your problem is not caused by moisture. How much time passed between first side and second side reflow, and how humid is the environme
Electronics Forum | Tue Nov 02 07:50:18 EDT 2010 | babe7362000
I just need a clarification on NC254 No clean solder paste. If we have parts on the bottom side of the board that already are soldered and we go to run the other side of the board and it was misprinted, is it ok to run thru the washer? I just need
Electronics Forum | Mon Mar 21 15:21:46 EDT 2011 | dyoungquist
At incoming inspection we visually check the stencil against the gerber file (called up on the computer monitor) used to produce it. This is mostly to check that they mirrored the bottom side correctly although we check the top side as well. That i
Electronics Forum | Wed Dec 12 11:35:26 EST 2012 | rway
I work for an electronics manufacture. Our end product is on PCBAs. My question is related to the use of safety glasses, which I know are required when doing rework. But here is the question: We ordered side shields for prescription glasses. Wha
Electronics Forum | Mon Jan 21 12:43:13 EST 2013 | emeto
A good fixture is the key here. The first side should be easier than te second(if double sided). In both cases I will try to level the top of the board with the top of the fixture. Try to lock with pins comming from the fixture to the PCB holes. This
Electronics Forum | Tue Apr 09 22:32:05 EDT 2013 | jeffr
There is no easy way... but this is how I do it.. Origin the R axis, losen the idler bearings on the belt, remove the C clips at the top of the heads, lift up and remove the spindle assemblies being careful not to lose the 2 balls in the side of the
Electronics Forum | Mon Jul 01 19:43:44 EDT 2013 | kumar_antom
Hi there, Its a lead free process and the paste that we're using is with this alloy composition : Sn,Ag,Cu,Bi,In.... Pls refer to the attached temp.profile.... This is a mirror Pcb....Same components on both A and B side.... A side doesn't have t
Electronics Forum | Wed Jul 17 12:38:50 EDT 2013 | horchak
It's what the customer wants. remember the customer is always right and that IPC is only recommended guidelines the last time I looked. I also belive IPC shows examples of PTH parts being preped and lap soldered to SMT pads so common sense says what'
Electronics Forum | Tue Aug 06 05:28:37 EDT 2013 | Alexei
Hello Everyone, I recently came across the need of SMT Setup Center for Samsung SMT Machines. We are checking for simple tool with offline side (preparation before SMT process) and online side (on SMT process) than are based on SMT setup files only
Electronics Forum | Thu Dec 12 12:54:25 EST 2013 | jaimebc
For selective soldered components, or even hand soldered, with vertical bend components, the body of the component, in this case a resistor, is making contact with the surface of the PCB, making it impossibe to visually see the solder fillet. Or to d
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