Electronics Forum | Wed Feb 20 08:57:13 EST 2008 | tonyamenson
We test for board cleanliness using an ionic tester. It's been my experience that if your board is clean you take away the possibility of growth even if the unit encounters moisture. We actaully had a problem where our wash lost pressure due to a mi
Electronics Forum | Mon Jun 01 11:38:28 EDT 2009 | operator
So would the proper technique be as follows: 1. Grounded operator picks up PCB from ESD rack and attaches a 1meg(wrist strap cord)shunt to ground to a grounding surface on the pcb. 2. operator sprays conformal coating onto pcb using a spr
Electronics Forum | Fri Jun 12 13:06:14 EDT 2009 | grizzy
We have an excellent machine from a leading manufacturer of Conformal Coating equipment..... USI. This machine can run relatively high volume applications, and is in line, smema controlled. I suggest you watch the video of our machine in operation, a
Electronics Forum | Thu Aug 13 19:30:57 EDT 2009 | secura1
I'm new to all this... we have a board with one BGA blue tooth device. one test for the board is an rf test that measure successful packet transmission. we find that we get much lower error rates if we "reflow" the BGA with a heatgun. We do this
Electronics Forum | Thu Mar 24 11:04:41 EDT 2011 | smt_guy
Hi, I have a 2.75" x 1" x 0.027"thick CCA with SOIC16W and QFN56 as well as some 0201's, 0402's and QFN16 Components that are to be enclosed via molding process. Is there any Insert Moling, Over Molding Circuit Card Assembly Guidelines out there fr
Electronics Forum | Tue Jan 10 22:10:29 EST 2012 | doncattoni
Hello Austin, Sorry for the delayed response. There are different types of cures for conformal coating such as RTV which stands for Room Temperature Vulcanising which means they are cured by the humidity in the air. This type of cure does not need
Electronics Forum | Fri Feb 24 08:02:22 EST 2012 | cobham1
Our production runs normally are 20 piece builds. We don't what to brush because of the brush marks left behind. Reason we wanted a machine is more control then dipping with a tub and modified paper clips. The other problem we have is the company as
Electronics Forum | Wed Sep 19 12:27:52 EDT 2012 | tombstonesmt
Looking into possibly receiving samples of polyester masking dots for conformal coating. Our usage of polymide dots have really increased in the past months and we're always looking for a reduction in costs. The only information I've found is that po
Electronics Forum | Tue Mar 19 13:32:21 EDT 2013 | rgduval
In the past, I've used kapton tape for masking, as well as masking tape and solder mask as you've described. I've also used dummy connectors, or connector caps to cover connectors/pins. In the end, though, I'm not sure any of these methods decrea
Electronics Forum | Tue Feb 03 15:14:58 EST 2015 | stevezeva
This is a late reply, but from my experience a really good removal station is one made by a company called CCRCo. They make a micro-abrasive station that addresses all the ESD concerns. They utilize a reusable media that is really cost effective. The
