Electronics Forum | Thu Feb 11 12:02:47 EST 2010 | plaiming
We have temporarily switched to an RTV for the vibration reincforcement, but it is not compatible with acrylic conformal coating and we really do not want to switch conformal coatings to a silicone based. Additionally we are testing the product in h
Electronics Forum | Wed Feb 24 19:51:12 EST 2010 | dcell_1t
Hi! Just to update... we checked along with solder paste suplier and found that the curtain on the oven was probably causing the issue so we removed in order to troubleshoot, as far as I know this curtain helps to not allow to flow oxygen into the ov
Electronics Forum | Tue May 25 11:34:02 EDT 2010 | jmedernach
Hi, Use nitrile or latex gloves for handling your product from your pre-coating cleaning step onward. In my opinion, conformal coating should be isolated from the rest of the factory floor. I'm not saying you need a clean room or even a white room.
Electronics Forum | Tue Jun 29 14:44:26 EDT 2010 | rgduval
There are some good suggestions here...reflow pallets, and copper balancing. We would also suggest verifying that your problem is not caused by moisture. How much time passed between first side and second side reflow, and how humid is the environme
Electronics Forum | Tue Aug 17 16:07:23 EDT 2010 | scottp
Are you controlling humidity in your plant? I'm not familiar with that particular paste, but some pastes are sensitive to a humid environment. We also had one paste supplier send us a batch that had excessive solder balls if the boards were printed
Electronics Forum | Mon Sep 20 00:47:35 EDT 2010 | emmanueldavid
AL, Let's always remember that any Temperature controlled environment has to draw higher Time to bring the Temperature down than that is drawing for Temperature Ramp up. The best way is to keep Room Temperature in as low as possible level & open t
Electronics Forum | Wed Nov 09 09:09:27 EST 2011 | swag
By no means clean room but pretty clean environment. We have ultrasonic air humidifiers maintaining our air at about 45 RH. I agree with you about airborne stuff attaching to electro-static. It's a mystery why it is isolated to four machine, thoug
Electronics Forum | Thu Jun 28 16:43:51 EDT 2012 | ssupertuba
Yes I have a KIC and have checked the profile often. I just changed the reel of the parts that are causing problems and it went away. Now what am I suppose to say? I have made an NCMR for the parts but I'm sure they would work in an environment of
Electronics Forum | Thu Jul 05 15:52:02 EDT 2012 | stentech
What size frame are you using and what thickness and size is your stencil. I would ask your stencil vendor for their positional accuracy over 20-36 inches x-y. We have the capability also to make a photoplot in a controlled environment and over lay i
Electronics Forum | Wed Sep 05 16:35:22 EDT 2012 | davef
It depends, but I'd guess that as a minimum the floor clock will start when the component returns to room temperature. It's easy to argue that the floor clock starts earlier than that!!! Probably, the floor clock starts a couple degrees lower than th
.gif)
