Electronics Forum | Fri Sep 01 15:52:03 EDT 2017 | wyluliwolf
Long story short: I paid someone to convert some older Gerber files to the new RS-274x format for me so I could have them manufactured. I sent them the original Gerber files (RS-274D) along with additional files showing information on the layout. T
Electronics Forum | Mon Feb 12 10:27:11 EST 2001 | stownsend
Yes this does help. Thanks for your input.
Electronics Forum | Mon May 06 00:09:00 EDT 2002 | ianchan
as a followup thought, what is your current peak reflow deg-C? and reflow timing (sec)? Au/Ni calls for reflow temperature of 217 deg-C for solder fusion that produces secondary eutectic alloy. there was one time we thought 183 deg-C was the magic
Electronics Forum | Thu Feb 08 08:43:21 EST 2001 | davef
Cal: Thanks for your comments. We all should do our best to sure that others' comments are accurate. It is important to help maintain the integrety of the Forum and for personal devlopment. It would be good if we had fewer threads like: PCB
Electronics Forum | Tue Aug 20 19:15:39 EDT 2002 | stownsend
On a gold plated PCB, when in the PCB fab process is the gold plating applied? How about OSP, when in the process is OSP applied?
Electronics Forum | Sat Apr 10 11:47:16 EDT 2004 | mskler
Hi all, When we are producing A gold Plated PCB Then the Prob Of Dry soldering is coming Profile temps are 130, 150, 180,and 220 top & 215 bottom.Then what are the other causes or Precautions may be taken.
Electronics Forum | Wed Feb 07 21:51:49 EST 2001 | davef
You're correct that some folk have used microns and other folks have used u" when discribing their ENIG specification. It's likely the the micron folks misquoted their units and it's arguable that participants in the forum should have taken them to
Electronics Forum | Wed Feb 21 19:46:13 EST 2001 | Dave E
u" are smaller. 1uM = 39.4u" and so 3-7uM = 118-275u" Then some articles or specs really confuse things by mixing mm and uM or using u all by itself... http://www.circuitree.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2133,11666,00.h
Electronics Forum | Wed Feb 07 12:07:34 EST 2001 | stownsend
I know this subject has been beat to death, but I need a clarification. I keep getting mixed messages about how much gold is required on a PCB for a reliable solder joint. Some people are saying 3 - 5 microns, some are saying 3 - 5 micro inches. Do a
Electronics Forum | Mon Jul 07 00:22:38 EDT 2003 | sam
Thanks for all the answers. I should clarify that the problem was found to be on the SMT LED gold plating, instead of PCB gold plating. We had confirmed this problem by running some DOE experiments and some reliability testings. We had decided to d
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