Electronics Forum: stick and storage (Page 1 of 13)

PWB packaging for shipment and storage

Electronics Forum | Wed Oct 20 10:41:22 EDT 1999 | Eric Lerz

Our company (assembler and user) has experienced some board problems relating to warpage and solderability. The manner in which they are packaged by our fabricators and stored in our stock prior to assembly has been questioned (as one of many factor

Required humidity for SMT production and storage

Electronics Forum | Thu Apr 12 00:56:20 EDT 2007 | Jani

Our SMT production and storage area is air-conditioned, constant temperature is maintained but the humidity is not controlled , the raw SMT material is stored in a "Drier" cabinet, but since we assemble hybrid SMT and thru-hole PCB assemblies, the SM

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Sun Nov 08 17:04:26 EST 2015 | ttheis

Thank you very much for sharing this information. It is difficult to gain knowledge in this area independently. I'll contact Kester for information on adjusting the flux density and which "thinner" to use since I am using their flux. I really like

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Thu Dec 03 15:30:00 EST 2015 | ttheis

We've started off with Kester 951 'no-clean' so far which is alcohol based I believe. It seems to do very well with foaming, activation and low residue, but if we can move to water based and get good results that would be great. The 951 flux and thin

Required humidity for SMT production and storage

Electronics Forum | Thu Apr 12 22:00:58 EDT 2007 | davef

Search the fine SMTnet Archives, for instance: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=46687

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Thu Dec 03 15:38:35 EST 2015 | ttheis

Thanks for the tip! Do you find the boards require any cleanup after exiting the wave with the Superior 420-XF-LF?

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Thu Dec 03 15:41:09 EST 2015 | proceng1

We do run them through an Aqueous washer, but I don't see excessive deposits or anything before washing. And our wash is just heated DI water.

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Thu Dec 03 14:37:53 EST 2015 | proceng1

Are you running a water or alcohol based flux? We run a water based product and it stays in the tank with the stone all week and is emptied and cleaned at the end of the production week. Never once have I stored the stone in thinner and I've never

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Thu Dec 03 15:34:57 EST 2015 | proceng1

Superior 420-XF-LF is what we use. When we switched, it took some time of just running it through the stone before we got the optimal performance. Especially when going into the clean and dry tank on monday morning, we usually let the fluxer run for

Required humidity for SMT production and storage

Electronics Forum | Thu Apr 12 13:04:47 EDT 2007 | slthomas

Handling requirements of all classifications of moisture sensitive devices is found in J-STD-033. It really isn't an issue for most parts unless they're going to reach reflow temperature again, which is unlikely unless you're removing a nearby compo

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