Electronics Forum | Thu Jun 08 07:56:34 EDT 2017 | jkitt84
In an excellent previous thread davef mentions brass should be plated prior to soldering to prevent zinc leaching from the brass. It is reported once the zinc leaches, the joint is weak. He recommends copper or nickel plating. Would silver plating w
Electronics Forum | Thu Jun 15 14:51:37 EDT 2017 | bmalhi
If machine serial tag referring to 3Ph, 208-240V then you cannot apply 3Ph, 380V. In order to use 3Ph, 380V supply you have, machine needs to be retrofitted to work with this voltage. If you apply 380V without voltage conversion, you will damage som
Electronics Forum | Wed Jan 03 02:12:48 EST 2018 | michelle01
Hi All, > > We have a project and need produce > 500pcs pcb board for smart phone. There are two > kinds of supplier for pcb fabrication, one is > professional prototype for small volum, another > is factory for big amount. I don't know how to
Electronics Forum | Thu Jul 06 11:47:10 EDT 2017 | bobpan
Are you sure the board is clamping tightly. If it moves during a run this can happen. Before reseting the machine. Go and check your feeders. If they are off the same amount....then the machine truly has a drift in that axis...if the feeders are stil
Electronics Forum | Tue Aug 01 11:29:02 EDT 2017 | fkn
FKN Systek makes Depanelizers that work on aluminum boards. Please call me at 508 376 2500 or send email to discuss. We usually get a customer sample just to make sure. We have been selling the K3000 and K4000 Depanelizers for over 10 years to custom
Electronics Forum | Fri Aug 11 22:14:59 EDT 2017 | dawson
Hi Adonys, What's ICP 1-3? Do you mean IPC? 1. Excess Plating- no excess, but filled with something which generated in the process of copper plating. 2. Dark Vias - it's oxidized. and the solder mask printing is not aligned. The board is failed. M
Electronics Forum | Mon Aug 14 12:46:41 EDT 2017 | deanm
Any of the comments so far could be valid. To add my opinion, it looks like the pad size is too large. A smaller volume of solder will pull less than a larger volume. If you can't change the pad sizes, then the next thing to try is to get another ste
Electronics Forum | Thu Aug 24 00:05:14 EDT 2017 | heros_electronics
The first reply from Tsvetan Usunov already > answered your question - there are no thermals > for one side of the chips. > > You can try to > reduce the phenomenon by using different solder > pastes, tuning your soldering profile or even > swi
Electronics Forum | Tue Sep 05 05:25:27 EDT 2017 | heros_electronics
Hi, I think your friend wrongly changed the D code so that the finger width doesn't meet your requirements. And the fingers have long and short ones, which is hard to do selective gold plating because of not easy to add plating wires. Of course, you
Electronics Forum | Wed Oct 18 09:45:23 EDT 2017 | alexeis
Hi, You have 2 options: 1. You can pay for a software solutions but it can't do 100% work. You will complete manually a conversion (between 5%-50% based on a complex of your board, type of component and other problems). 2. Do it by your self using E
