Electronics Forum | Wed Jul 17 11:45:48 EDT 2002 | fmonette
The current IPC/JEDEC standard J-STD-033 for moisture-sensitive devices does not include a bake cycle at 90C (it includes cycles at 40C and 125C for non-assembled components in reels or trays). However, the upcoming revision, which should be release
Electronics Forum | Thu Mar 25 09:27:08 EDT 2010 | stepheniii
Thanks I guess I got used to google where the "and" is implied. I searched various combinations and all I could find were threads regarding the pcb's not the components. Does anyone bake their boards after wash before second reflow because of MSD c
Electronics Forum | Wed Mar 24 16:54:38 EDT 2010 | stepheniii
J-STD-033B.1 Says "For cavity packages in which water may be entrpped, water clean processes after first reflow can be an additional source of moisture. This may present an additional risk, which should be evaluated." And it talks about derating if
Electronics Forum | Thu Jul 12 02:15:53 EDT 2012 | thmeier
Check also the specs / recommendations of your PCB manufacturer. We bake boards 4h/120°C before reflow and after automated cleaning (it´s not FR4!) and also if we have to rework with the autometd rework- stations (massive IR underheating ,..). Regar
Electronics Forum | Wed Jul 11 22:48:54 EDT 2012 | joeion
It is correct to remove moisture in PCB by baking. But I think the time and temperature is too little. According to our experience, it should be more than 60min at 120 centigrade degrees.
Electronics Forum | Thu Jul 05 21:07:09 EDT 2012 | davef
Probably they had a problem with a certain product, tried baking, the problem went away and ever since there stuck with this money loosing process. So, ... * Write up a plan to split a couple of batches, bake a portion of each batch, don't bake the o
Electronics Forum | Wed Jul 11 22:44:50 EDT 2012 | joeion
Why cannot reply????
Electronics Forum | Fri Jul 13 08:03:54 EDT 2012 | cobham1
I appreciate all the feedback. The reason I was asking the question is because we have an internal documnet that states we need to bake for 16 hours after the boards are cleaned. This just seemed to long for what little moisture is really removed. I
Electronics Forum | Fri Jul 06 10:35:32 EDT 2012 | ashworth14
All i used to do was blow them with an airline to remove the excess moisture then bake them for 15/20 min at 100' in an oven and that seems to work fine, i did get the info from a 4 stage cleaning guide for the actual cleaning solution we used but it
Electronics Forum | Thu Jul 05 11:26:08 EDT 2012 | cobham1
I need help with how long do I need to bake out double sided PCB's that have been cleaned. The units will not be reworked but instead will be moved on to hand stuffing. I have looked in IPC CH-65B and J-STD-033C. I get information for parts if I am r
