Electronics Forum | Mon Nov 04 07:27:33 EST 2019 | amitthepcbguy
There are multiple methods where you can perform top and bottom reflow soldering simultaneously. With this method, you might not worry about the type of flux there is. Each part is covered and baked as per the requirement, while making sure there are
Electronics Forum | Fri Dec 13 10:05:23 EST 2013 | igorfo
Dears, Could somebody advice is there exist requirements for storing(like humidity , temperature, etc) for PCBA (PCB with SMT components)
Electronics Forum | Fri Dec 13 11:00:33 EST 2013 | davef
I'm not aware of a standard for the storage conditions of assemble circuit boards. Here's what I'd do: * Protect them from damage * Store them vertically * Constant Temperature 22°C +/- 3°C * Humidity Control 45% To 65% R.H.
Electronics Forum | Wed Apr 10 11:55:58 EDT 2002 | Yngwie
Temp/Humidity requirement for baking normally specified at : Low Temp baking : 40 deg C at 5% RH High temp Baking: 125 Deg C at 5% RH. The problem here is the 5% ? Although the 5% is achievable with a special Oven, can someone explain why is it 5%
Electronics Forum | Fri Dec 13 13:46:23 EST 2013 | markhoch
I agree with Dave. Much better to store as he suggested then to store them in piles on the floor. Ha! Piles of boards... never ceases to be funny.... :-p Funny though...my customers don't seem to find it as funny as I do. I wonder why....
Electronics Forum | Mon Aug 14 11:18:42 EDT 2000 | Chris C
There are two similar products, Eureka and McDry dry box units and other nitrogen required units in the market. Both Eureka and McDry are not required Nitrogen, I'm seeing a cost saving there in the long run. I have several Eureka dry box in the faci
Electronics Forum | Tue Apr 13 14:49:15 EDT 2010 | davef
90%) from the sample, and the bake time and temperature specified herein are minimums. To improve test accuracy, or to prevent heat damage, other bake parameters may be AABUS. 2 Applicable Documents IPC-QL-653 Certification of Facilities that Inspect
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
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
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
