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Electronics Forum | Fri Aug 05 12:13:28 EDT 2005 | spommer
As part of our conversion to lead-free, I'm redesigning a pcb that had switch contact patterns screened on the board using carbon ink. On the new board, I plan on using the ENIG process and having the switch contacts be patterns of copper with the n
Electronics Forum | Fri Feb 17 07:23:29 EST 2017 | sevenfortyone
I'm a PCB designer working on a board that has a rubber keypad with control buttons mounted to it. The PCB contains the corresponding contact patterns for the buttons - a typical interlocking finger pattern. In the past when I've encountered this
Electronics Forum | Tue Feb 21 01:32:49 EST 2017 | soldertraining
Looking for advice on soldering lead free paste to a board with very heavy gold plating, In my opinion, Gold contact surfaces are often used on circuit boards with membrane switches which is a choice of technology for industrial, commercial and consu
Electronics Forum | Fri May 03 18:10:17 EDT 2002 | stownsend
Okay, here goes another thread about gold plating. I have been using gold plated PCB's for about two years now, with mostly very good results. The main reason I started using gold in the first place was because it is flat, solder wets to it nicely,
Electronics Forum | Fri Jun 14 14:30:36 EDT 2002 | davef
Assuming you are talking about solderable surfaces: People specify various materials to protect the solderability of the pads on the board. Gold, actually, Electroless Nickel - Immersion Gold [ENIG], is popular. * Board fabricators like it because
Electronics Forum | Thu Aug 31 11:16:53 EDT 2017 | hxamalia
Hello ALL Good day , it is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory with many years. We are focusing on quick lead time for PCB with good service . please contact with me now ,thanks Email: amalia@hx-c
Electronics Forum | Fri Feb 17 09:08:22 EST 2017 | davef
An interesting paper on the topic is "The evolution of surface finishes in mobile phone applications" by Claus Würtz Nielsen at Nokia Mobile Phones R&D [http://www.cicmt.org/adv_micro/papers/Nordic2004paper.pdf] The paper reported corrosion problem
Electronics Forum | Tue Feb 21 03:20:57 EST 2017 | pcbcart
We're a custom PCB manufacturing services provider based in China and we have made many high quality circuit boards for high end products. Based on your project requirements and our years' experience, we are positive that ENIG is totally sufficient.
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