Electronics Forum: shelf-life (Page 12 of 38)

PbF PCB finish

Electronics Forum | Wed Jan 24 10:16:18 EST 2007 | russ

immersion silver has become my favorite finish for lead free. Seems toi have good shelf life is stored in the silversaver paper. and reflows real well. Russ

expired solder paste

Electronics Forum | Thu Apr 03 17:25:49 EDT 2008 | alexs

Hi All, I have some question about expired solder paste. What would be some of the effects regarding assembly quality. Is there any changes in flux composition toward the end of shelf life? Thanks in advance for any replies.

Oxidation on PCB's

Electronics Forum | Fri Aug 01 08:10:29 EDT 2008 | scotceltic

Has anyone come across a standard or study (JEDEC, IPC) where it has the recommended shelf life outside of a dry box for immersion silver coated PCB's to prevent oxidation from affecting the soldering process (Both reflow and Wave). I know it will

Pad finish

Electronics Forum | Thu Sep 30 16:54:33 EDT 2010 | 18424

Enig have been one of the industries leading finishes with great solderabilty and shelf life, And now Immersion Silver is starting to get popular.

PCB over shelf life

Electronics Forum | Thu Dec 16 19:28:50 EST 2010 | kemasta

I tired to attached the picture, but fail. maybe My company firewall block any document from leak out. Any other way?

Printed Circuit's Shelf life

Electronics Forum | Mon Jul 22 17:29:03 EDT 2013 | jorge_quijano

I have Ag & ENIG finishes, for Ag I've seen some oxidation, specially if the bag is not sealed propperly. Is there any real due date for PCBs?

Pot life & shelf life

Electronics Forum | Sun Sep 01 05:39:36 EDT 2013 | leardkattiya

Hi, can someone give definition on pot life? does the pot life start once it's been taken out from fridge or the pot life starts once recommended thawing ends?

PCB SHELF LIFE AFTER FIRST REFLOW

Electronics Forum | Mon Feb 09 10:51:10 EST 2015 | jax

If solderability is the only concern, then there is no standard time. Multiple factors involving OSP thickness, Flux activation levels, profile parameters, storage environment will drive the problem. You just need to perform tests to determine your m

Help with resources for SMT assembly

Electronics Forum | Sat Oct 24 13:03:20 EDT 2015 | mikekeens

With regards to PCB surface finish I would recommend Electroless Nickel Immersion Gold (ENIG) because of the long shelf life, tarnish resistance, RoHS-compliance, and easy soldering compared to other surface finishes. http://www.surfacemountprocess.

Moisture Sensitive shelf life

Electronics Forum | Mon Aug 22 18:25:54 EDT 2016 | cox1

I have a MS level 3 component that has been on the shelf for 7 years. Should it be baked before usage. The HIC card reads ok- and it was stored with desiccant. History of the part is unknown, was purchased from franchised distribution.


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