Electronics Forum | Mon Jan 03 16:34:10 EST 2005 | davef
The main advantage if ENIG over HASL is that ENIG is flat and HASL generally is not. The main disadvanages to ENIG over HASL are: * Cost of ENIG is 1.5 - 2X higher than HASL * Selflife is less than HASL * You solder to nickel, rather than copper * E
Electronics Forum | Thu Jun 25 09:53:04 EDT 1998 | Earl Moon
| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | Mike, | You
Electronics Forum | Fri Jun 19 10:03:46 EDT 1998 | Earl Moon
| Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | Mike Mike, We and ind
Electronics Forum | Fri Sep 10 14:32:49 EDT 1999 | John Thorup
| We have a product, with various PWBs, with over 600 parts each one (We are a low Volume/high mix company with an average component placement per PCB between 250 to 300 parts). This PWBs have 7 to 10, 20 mils pitch parts. We are having problems with
Electronics Forum | Mon Sep 13 05:02:19 EDT 1999 | Brian
| We have a product, with various PWBs, with over 600 parts each one (We are a low Volume/high mix company with an average component placement per PCB between 250 to 300 parts). This PWBs have 7 to 10, 20 mils pitch parts. We are having problems with
Electronics Forum | Wed Sep 19 14:23:31 EDT 2001 | jschake
Pad Metallurgy Used: Copper OSP pads were used for all of the results that I have been reporting. The same design test boards with Nickel/Gold pads are available and awaiting further assembly tests. I will consult with a board technology and metall
Electronics Forum | Mon Dec 19 08:56:18 EST 2005 | davef
Q1a. If the thickness of the silver is too much (how is too much??), A1a. We have heard stories of using Ag2 to limit silver [or gold] dissolution, but have never seen formal studies to demonstrate that idea. First, exclude the use of silver plate
Electronics Forum | Tue Apr 13 09:11:54 EDT 1999 | Dave F
| We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have to
Electronics Forum | Thu Jan 20 12:10:29 EST 2000 | Dave F
Hany: I have never understood why the add-on boards in PCs have gold plating on their connectors. In the military and in avionics, they require gold on connectors to protect from wear and corrosion. But PCs ave very different. PCs: * Are obsolet
Electronics Forum | Wed Sep 29 22:48:07 EDT 1999 | Dave F
| Can someone help me find info on gold repair? I know it can be done, but I need to know how expensive it is, etc. | Paul: The following seel gold finger repair kits, in-case you haven't had your dose of heavy metals: Hunter Products 792 Partridg
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