Electronics Forum | Mon Oct 26 15:38:27 EDT 2009 | davef
We believe that some suppliers replace nickel with cobalt in SN100 to product a shinier, less grainy, more attractive lead-free solder connection. SN100E sales-types like the idea that it is available in paste, bar stock, and other forms; as compare
Electronics Forum | Tue Oct 27 06:29:49 EDT 2009 | lococost
Yes it is possible, and yes you shouldn't trust boards that have this problem. You're best off baking PCB's this old befor reflow. This looks like barrel cracking, a quick google gives: http://www.eco3.co.uk/e3toolkit/e3toolkit/modules/05/05_04_j_pc
Electronics Forum | Thu Oct 29 12:45:34 EDT 2009 | europesmt
Probably the machine service key is in on position. Put back to left side. This results in the machine speed is very low and the machine can operate with covers open. Key is located by the hour counter or on the hand held keyboard. Hope this will s
Electronics Forum | Tue Oct 27 22:52:18 EDT 2009 | davef
Top picture: We're not wild about the 'poor registration,' the differing thickness of the solder mask, and the crud all over the board. But, then again, we don't have a basis for rejection. Bottom picture: No basis for rejection Help us out, what do
Electronics Forum | Wed Oct 28 07:26:19 EDT 2009 | julie331975
I don't like these boards for a couple different reasons. 1. They may be fine functionally but they look like crap. 2. What is our customer going to think when we deliver boards that look like this? They will probably wonder the same thing I do...
Electronics Forum | Thu Oct 29 18:33:18 EDT 2009 | comatose
The top picture probably won't run. You have black soldermask dramatically misregistered and overlapping what look a lot like fids. Either your machines are going to pitch a fit and not find the fid or they're going to center on the soldermask outlin
Electronics Forum | Tue Nov 03 06:23:12 EST 2009 | josh_brubaker
Has anyone ever done a tape test to see if the solder resist pulls away from the PCB? Is this an acceptable method for testing solder resist acceptability? This is an issue I am experiencing with our PCBs. I am receiving boards with excess solder o
Electronics Forum | Thu Oct 29 07:34:26 EDT 2009 | cyber_wolf
Buying used machines can be tricky business. Things to consider: *Does the used equip. dealer offer a guarantee? *Parts availability *Available support if it breaks *Capability...will it be able to handle future jobs. I have been doing this for ove
Electronics Forum | Thu Oct 29 08:45:51 EDT 2009 | bobpan
Using older quad equipment is all about experience and knowing the right people/engineers....If you dont....you will end up thinking the machine is a 'turd' when its really just a lack of knowledge or knowing the right people. The manuals will not he
Electronics Forum | Wed Nov 04 12:21:34 EST 2009 | adlsmt
Considering the volume it would seem you are better off to go to a small contract shop. If you let us know what area you are in Im sure you could find one that would be acceptable. You should not have problems with accuracy or lead times with the typ
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