Electronics Forum | Mon Sep 21 15:06:05 EDT 2009 | rramplin
I know the approximate shelf life for good and OK storage of ENIG and Ag boards but I do not know what these times are like for HASL. Can anyone help me out here. Thanks.
Electronics Forum | Thu Dec 16 23:17:02 EST 2010 | Jacki
Hi Kim Dun take any risk in delamination bcoz u will be the person to answer for being it. So, we do bake all Pcbs, which have 3months of shelf life, b4 startin any process although they are still inside the factory packs.
Electronics Forum | Fri Mar 18 15:39:18 EDT 2011 | bk
Tyco had a good read on the shelf life of tin plating and the different variables involved in determining it's shelf life. http://www.tycoelectronics.com/documentation/whitepapers/pdf/Keeping_Tin_Solderable.pdf
Electronics Forum | Thu Sep 27 16:40:12 EDT 2012 | davef
Ideally, shelf life should be twelve months from application, but not all OSP's are the same so check manufacturer's instructions
Electronics Forum | Mon Feb 09 08:34:50 EST 2015 | saoasasd
In my case most of the PCBs are OSP finishing and worst case of MSD component on bottom side is level 3 (168 hours). You mean that PCB shelf life with bottom side assembled shoud be 84 hours?
Electronics Forum | Wed Jan 27 08:39:36 EST 2016 | richmonde1
Does isopropyl alcohol have a shelf life? I have looked at many manufactures and have not found any publication of a TDS specifying shelf life, rather only a MSDS which does not include this info.
Electronics Forum | Fri Sep 09 05:29:25 EDT 2016 | jasltd
simpel answer is yes it will need to be baked, the typical shelf life for a sealed component assuming it has been sealed would be a max of 2 years but some are shorter. The bugger problem with the device may well be solderability of the device!
Electronics Forum | Wed May 03 09:01:32 EDT 2017 | pavel_murtishev
Good day, Are there any IPC standards applying requirements to HASL PCB shelf life? Are there any exact figures such as one year for instance? Could you point me to standard numbers if they exist. Iny input would be appreciated. Regards, Pavel
Electronics Forum | Mon Nov 07 17:45:37 EST 2022 | emeto
Hello all, Can anyone advise if any standard covers ENIG plated boards shelf life? Or share what you do for bare boards storage and expiration criteria?
Electronics Forum | Wed Nov 09 07:43:12 EST 2022 | micropak
ENIG boards have low shelf life as oxidation starts showing up quickly on the solderable areas. We usually keep them vacuum packed till they are ready to be assembled. Most PCB manufacturers will send them vacuum packed.
