You are referring to bare boards, I assume.....?



-----Original Message-----

From: TechNet <[log in to unmask]> On Behalf Of Bill Michels

Sent: Wednesday, March 06, 2019 4:58 PM

To: [log in to unmask]

Subject: [EXT] Re: [TN] PCB shelf life



Good evening Juan,



It really depends on the surface finish.  HASL and ENIG coated circuit boards stored under proper conditions typically will have a 12 month shelf-life while Immersion Silver has a shorter shelf-life of 6 months or less.



Regards,



William Michels

Quality Engineer







-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Juan T. Marugan

Sent: Wednesday, March 06, 2019 2:37 PM

To: [log in to unmask]

Subject: [TN] PCB shelf life



Hi all.



My question is regarding the PCB shelf life. Should a PCB be considered as an age sensitive product (that is, with an  expiration date)? If yes, is shelf life defined in any standard?



What do you suggest to do when shelf life has passed: scrap?



Thank you so much for your feedback.



Juan



Indra (Spain)

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