Electronics Forum | Tue Mar 25 11:43:48 EDT 2014 | sara_pcb
It is Solder Mask on Bare copper, The land finish is HASL as per MIL-PRF-55110G which accepts trace of HASL as acceptable. Wetting is acceptable. regards, R.Saravanan
Electronics Forum | Tue Aug 28 08:28:30 EDT 2012 | rgduval
We agree with all of the previous comments, and would add the following: Warpage is generally caused by excess moisture in the raw boards. Have you tried baking the boards prior to assembly? We had this issue on a simple 4-layer board, and found t
Electronics Forum | Tue May 15 21:57:06 EDT 2001 | davef
Welcome!!! Where the hay ya been??? Sorry bud, were lining-up with your fab [it hurts me to say that, but when yer ] We used to dry pack with desiccants, also. Its probably an old MIL-STD-2073-1C requirement [er something like that]. We qui
Electronics Forum | Mon May 21 17:32:23 EDT 2001 | davef
I said: "Our electronic circuit board fabricators seal the boards in moisture barrier bags [MBB]. We discontinued the use of desiccant bags in these MBB because of concerns about the desiccant releasing materials that would affect the solderability
Electronics Forum | Fri Aug 27 11:27:55 EDT 1999 | Brian
I have looked through the IPC web page and surfed to frustration. Can somebody give me a lead?
Electronics Forum | Sat Aug 28 09:23:36 EDT 1999 | Mike McMonagle
| I have looked through the IPC web page and surfed to frustration. Can somebody give me a lead? | Check out the EasyBraid website below, they carry IPC standard coupons, flux test kits and SIR meters at reasonable prices.
Electronics Forum | Mon Aug 30 16:10:10 EDT 1999 | Dave F
| I have looked through the IPC web page and surfed to frustration. Can somebody give me a lead? | Brian: We don't use an etched board. We use a special stencil, described below and print on bare copper laminate. 3 Solder Wetting Test. Recogniz
Electronics Forum | Wed Aug 03 07:28:33 EDT 2016 | allan10
Hello ,maybe you can choose PCBGOGO.specialize in Quick turn PCB services ,PCB fabrication and assembly low cost but high quality, $10= 10 pcs of 2-layer PCBs, only 2-3 days for fabrication.The quickest lead time PCBGOGO can do is 12 hours. delivery
Electronics Forum | Wed Dec 26 07:55:27 EST 2018 | mermarinc
Last month, I had worked with California based PCB manufacturer and it was a great experience. They offer a complete solution for contract manufacturing services from PCB Fabrication, PCB Assembly, Cable harnessing and more for quick-turn and standar
Electronics Forum | Sat Aug 19 11:09:17 EDT 2017 | sawyerh
Hi Shonen, I have gone through quite a few PCB fabrication services. I would recommend http://www.customcircuitboards.com/ They have provided me with fast deliveries (1-2 days for 2 layers) and assembly services as well. I believe they are located
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