Electronics Forum | Tue Oct 24 08:07:42 EDT 2006 | markb
We are experiencing an issue with RoHS boards delaminating during SMT. In tyring to determine root cause, our board mfg house states the issue is with the laminate. The laminate supplier states that the board house is not taking the proper precua
Electronics Forum | Tue Oct 24 15:46:09 EDT 2006 | aj
Mark, The pcb manufacturer recommended we bake the boards , so we did. I even weighed a batch before and after and seen slight decrease possibly 0.1g in weight. However we still seen some delam after all this. I am confident our issue has nothing to
Electronics Forum | Thu Nov 16 11:45:15 EST 2006 | markb
I still think the best bet is probably an SMT pre-bake operation to ensure that there is no moisture in the board. Vapor pressure is usually the leading cause for delamination, so removing the source should significantly help out. Unfortuantely, pr
Electronics Forum | Tue Oct 24 10:03:24 EDT 2006 | billyd
All - I'm hoping I can get a little feedback here on my package libraries for my Mydata machines. I have four tied to a server right now, and I have several operators that apparently like to make packages, so I have some called 0805-05-A-MY-9-2 and t
Electronics Forum | Tue Oct 24 13:07:54 EDT 2006 | CL
Hello Billy, We have 6 machines tied to a server. I can see where this would be a problem. Basically, the answer is you would need a package for every significantly different package that you are placing. I don't think you can just say 3 0805 packag
Electronics Forum | Tue Oct 24 13:41:25 EDT 2006 | jax
Everybody who uses basic "part-type" naming conventions for machine package codes will have this same issue unless restrictions are placed on who, how, and when the package codes can be altered. Some alternative methods to solving this problem: 1. U
Electronics Forum | Tue Oct 24 11:26:03 EDT 2006 | geb
Hi, I've had some trouble with one of my GSM cameras. Its a 1 mil camera (in circular housing). Some components have fallen down the gap between the glass cover and the LED array closest to the rails. One of the resistors (closest to the left) has b
Electronics Forum | Sat Oct 28 02:25:19 EDT 2006 | mika
Agree!! Where is Your thermocouple-probes attacded and can we get the info from this? Delta-T of the comp. is very, very important! The single most important smt-process step is the profiling/recipy and as a result of this, this poor package will cor
Electronics Forum | Tue Oct 31 21:49:38 EST 2006 | davef
First, we assume the white residue is only on the connector and not on other components. That would imply that either: * White stuff was on the connector when it came in-house from your supplier. [Confirm this theory by baking some connectors from
Electronics Forum | Thu Nov 02 18:56:10 EST 2006 | darby
John, As Dave says, never clean raw paste. Let it sit for at least 24 hrs if you can and use a plastic spatula to wipe off the bulk of it. The "drier" the paste the easier it is to remove without it travelling down vias etc. You will then have to cho
Nordson Electronics Solutions makes reliable electronics an everyday reality. Our ASYMTEK, MARCH, and SELECT brands deliver precision fluid dispensing, conformal coating, plasma treatment and selective soldering equipment.
2747 Loker Ave West
Carlsbad, CA USA
Phone: 18002796835
