Electronics Forum | Sun Aug 27 20:30:53 EDT 2006 | darby
AJ, We use all ENIG boards. After opening, any remaining boards are kept in low humidity keeping cabinet. I have never experienced a problem using this method I think the longest I have kept them this way is eighteen months. We also store any open tr
Electronics Forum | Fri Aug 25 07:42:29 EDT 2006 | davef
Our sympathies about the ENIG boards. B:) So, you cut the end off the barrier bag, take 200 boards, heat seal the end of the bag and restock it, build the 200 boards and ship them, right?
Electronics Forum | Mon Aug 28 07:28:07 EDT 2006 | davef
Mr Jarvis One experience with black pad makes you promise never to use ENIG again. It's nice that you have a supplier that has avoided that problem.
Electronics Forum | Fri Aug 25 04:17:51 EDT 2006 | aj
Thanks for reply, I am mainly concerned when we run a batch of say 200 out of a kit of 400. due to part shortages we might have to revisit the remainder a few weeks later. Its these boards that concern me. we use enig boards. aj...
Electronics Forum | Fri Oct 23 12:38:34 EDT 2009 | kircchoffs
--the lead time for ENIG only 6 monnths and need do baking before use if those boards was expired. speaking of baking. what is the correct procedure? may i know the temps,time and profile? thanks
Electronics Forum | Tue Jul 06 08:04:01 EDT 2004 | ANDREW
Thanks Dave, The surface finish is ENIG.Is it ok not to bake even though the HIC has changed color? What is the shelf life for ENIG boards?
Electronics Forum | Thu Oct 22 03:24:39 EDT 2009 | shinseimy
Base on my PCB experience, the contamination issue might caused by PCB finishing or SMT process (like oven or printing). Before go further, maybe you can check few things. How many PCB affected per lot?? it might be caused by humidity (storage or pac
Electronics Forum | Wed Apr 09 09:48:49 EDT 2003 | iman
after oven bake dry the PCB, we process within 4-hrs, else need to rebake again under same baking parameter. taking a look, the exact pads with the blowholes are full ENIG pads with no via holes under the solder-intend land areas. In event there is
Electronics Forum | Mon Jan 08 17:32:47 EST 2007 | Board House
Hi Oswald, Shelf life with ENIG if vacuum sealed and kept in controled enviroment would be 12 to 14 months. Shelf life in shrink wrap - No recomended packaging, 6 moths. If Shelf life goes over the 12 -14 months - Baking ? I would not suggest re-b
Electronics Forum | Mon May 17 13:21:45 EDT 2021 | SMTA-64387881
PWB Bake out or other elevated temperture processes can cause issues with oxidation of that Nickel layer. The gold porosity can vary from batch to batch, but also process changes can contribute. Are you baking the boards or have previous reflow pro
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