Electronics Forum | Wed Aug 26 18:58:07 EDT 2009 | rossi
I am not sure that it is the pillow problem. With the pillow problem you tend to see residual solder on the pad and voids where this solder pulled from on the ball. What we are seeing is a very thin flat layer of solder on the pad and a flat surface
Electronics Forum | Mon Aug 24 17:34:18 EDT 2009 | hegemon
DRS22 is not really comparable to the DRS25 due to a huge difference in the bottom heat technology used on those machines. If the PCBs are light enough the huge power of the DRS25 bottom heater is likely not needed, though. I would ask about your pr
Electronics Forum | Thu Aug 27 08:34:50 EDT 2009 | floydf
I am having trouble with little air bubbles in my conformal coat. It ranges from a few pin sized bubble to looking like spit. We are using Dow 2620 silicone conformal coat applied with a PVA sprayer machine. The conformal coat comes in bladder bags t
Electronics Forum | Mon Aug 31 12:37:39 EDT 2009 | rocko
Hi All, As a result of equipment damage I have a problem with a cleanliness of printed circuit assemblies. One whole production batch was polluted by ionic residues because a large amount of hard water had been penetrated in the water-supply system
Electronics Forum | Tue Sep 08 10:19:27 EDT 2009 | grics
Good Morning! I need some clarification. Our company is working with a start up company on some prototypes. On the bottom of the assembly they are placing a SOT23-5 component. It is being presented to the wave so the lead banks are parallel to the
Electronics Forum | Mon Sep 14 03:05:13 EDT 2009 | leadthree
After checking most of those previous posted here packages online I have to say i am not too excited. Biggest problem, nearly all use Windows as O/S. An indication that most are developed in the 90s. I think I write my own, just with MySQL and PH
Electronics Forum | Mon Sep 14 14:16:35 EDT 2009 | operator
I am looking for alternative, low cost materials to build ESD Safe Totes from. Standard totes really do not fit our products well. I would like to create custom, shielded totes with dissipative surfaces inside. Whether it is an ahesive film or paint
Electronics Forum | Sat Oct 17 16:23:34 EDT 2009 | emanuel
Can anyone share some tips on cleaning pneumatic type feeders? Some feeders I have seem to be "lazy", unable to react fast enough to the the pickup heads. Someone told me to wash them in IPA, with no oiling at all, while somebody else advised to a
Electronics Forum | Mon Oct 19 15:43:37 EDT 2009 | dilogic
We have a problem with QFN IC's with NiPdAu plated pads. Our ULC's don't see the pads due to the almost ideal reflection. Vision sees the pads almost black. As we don't have OAL-cameras (which can help in this case, I assume), I am thinking of back-l
Electronics Forum | Sun Nov 01 14:23:18 EST 2009 | dilogic
You can get an used GSM1 for little money, used pneumatic feeders are cheap and reliable. Software is excellent and there's a lot of spares on the second-hand market. Initial investment is low and you get excellent machine, superbly built, that will
