Electronics Forum: shelf life for pcb (Page 1 of 14)

PCB over shelf life

Electronics Forum | Thu Dec 16 09:15:07 EST 2010 | davef

Please post pictures of microsections

PCB over shelf life

Electronics Forum | Fri Dec 17 03:26:04 EST 2010 | kemasta

Thanks. If based on your statement, I can understand why it still can absorb moisture. But the PCB supplier was suggested us to keep at 40%~70% RH, if any issue occur with the storage condition of less than 5% RH, I think it is difficult for us to ge

PCB over shelf life

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.

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?

PCB over shelf life

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

PCB over shelf life

Electronics Forum | Fri Dec 17 02:43:24 EST 2010 | grahamcooper22

Ideal storage conditions to stop pcbs absorbing moisture is at less then 5% RH, for example in sealed moisture barrier bags. You mention that storage was at 40~70%...at these levels the pcb will absorb quite a bit of moisture. Your baking time was no

PCB over shelf life

Electronics Forum | Fri Dec 17 00:55:22 EST 2010 | kemasta

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. We keep it in

HASL, shelf life, IPC standards

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

HASL, shelf life, IPC standards

Electronics Forum | Wed May 03 16:37:10 EDT 2017 | charliedci

I don't believe there should be any issues with the HASL finish. The issue is how long on the shelf and is a bake out required to remove moisture from PCB, as in any FR4 PCB's that may have had time to absorb moisture.

HASL, shelf life, IPC standards

Electronics Forum | Mon May 15 12:36:12 EDT 2017 | edhare

I don't believe there should be any issues with > the HASL finish. The issue is how long on the > shelf and is a bake out required to remove > moisture from PCB, as in any FR4 PCB's that may > have had time to absorb moisture. > I don't believe

  1 2 3 4 5 6 7 8 9 10 Next

shelf life for pcb searches for Companies, Equipment, Machines, Suppliers & Information

Precision PCB Services, Inc
Precision PCB Services, Inc

Products, Services, Training, and Consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep & Sole Agent in North America for Shuttle Star BGA Rework Stations.

Training Provider / Service Provider / Manufacturer's Rep / Equipment Dealer / Broker / Consultant

1750 Mitchell Ave.
Oroville, CA USA

Phone: (888) 406-2830