Electronics Forum | Thu Dec 16 04:14:16 EST 2010 | kemasta
Hi, I am new in this industrial. I learnt that PCB may absorb moisture and eventually caused delaminate after heat apply on it (reflow or wave). But I don't quite understand, if the PCB was keep in sealed bubble bag, and with the humidity control wit
Electronics Forum | Thu Nov 17 20:19:00 EST 2022 | emeto
I need to back it up with a something like IPC standard. It seems to me that people have used boards that aged after the 12months period, however there is no information supported by studies that can show results in quality and reliability of the boa
Electronics Forum | Fri Mar 21 10:16:00 EST 2003 | O'Connor
Hi, Is there a standard that covers the shelf life of PCB's? I need to know, how long after manufacture a PCB can be stored in an uncontrolled envoirnment exposed to the atmosphere before being built on, currently we say 1 year, but nobody really kno
Electronics Forum | Tue Nov 15 22:33:16 EST 2022 | kumarb
Yes, solderbility. I recall one case of a vendor we met at a past HK electronic fair. Pricing was ok, we selected them and ordered a batch of boards. After a few months of leaving the PCBs in a sealed package (vacuum), we attempted to use the PCBs. W
Electronics Forum | Wed Sep 26 10:05:41 EDT 2012 | testbloke
Although we do not have any soldering issues with our OSP PCB's, I am trying to establish clear rules with regards pcb storage and shelf life. Our PCB's are supplied in metalised moisture barrier bags but without desicant, our current rules as follow
Electronics Forum | Thu Nov 30 00:41:23 EST 2017 | abhilash4788
Dear All, I have OSP finsh pcb on my production, the pcb thickness is 1.5mm and the product is one sideded pcba. After reflow process, Is there any specific time frame defined for smt completed OSP finish pcba before going for wave soldering proce
Electronics Forum | Tue Aug 31 13:23:37 EDT 2004 | frankracine
Thanks Ken for your reply. Concerning OSP, there are a few negative points that I must considered for our application. I've read all the following points in an Entek document. Never test it. - If you have a miss print and you clean the PCB, the co
Electronics Forum | Mon Feb 05 07:02:11 EST 2007 | CL
ASIR, Findings for us so far: OSP- has worked well for us for single sided boards only. We have seen problems with using it on double sided reflow applications. Also, some customers have specified OSP, but are intolerant of exposed copper. Limited
Electronics Forum | Tue Sep 11 22:52:18 EDT 2007 | davef
Here are some options for removing OSP coatings from pads of the BGA substrates. * Leave the substrates in storage for 13-14 months. Shelf life of OSP coating is ~12 months, depending on the product. * Wash the substrates in your aqueous washer. Ea
Electronics Forum | Thu Aug 31 12:17:56 EDT 2000 | mike weekes
We are considering alternative Board Finishes to our existing HASL process. The HASL effects opens on 25 and 20 mil packages after reflow and we know if the advantages of CuOSP and other alternatives. OUR Concern: Is there a shelf life and handlin
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