Electronics Forum | Tue Oct 24 08:43:16 EDT 2006 | aj
Mark, We have experienced this also. We sent back the effected batch and they supplied us with new ones which did not have the delam problem. We are currently following this up to see what the cause was.If we ever find out! aj...
Electronics Forum | Tue Oct 24 08:51:34 EDT 2006 | markb
aj, Did you have to implement a pre-bake operation prior to SMT? Or did the new batch work just fine with your current process? Just curious if we should be implementing a pre-bake process, or keep pushing on our supplier...or both. Thanks, Mark
Electronics Forum | Fri Oct 27 11:17:41 EDT 2006 | MFG CAVEMAN
Since I didn't see it mentioned - Are you specifying a laminate that is considered compatible with a RoHS process? I don't mean just a high Tg but a high Td (decomposition) and CTE material such as Isola 410, FR408 etc.
Electronics Forum | Fri Oct 27 13:58:27 EDT 2006 | markb
We use the Isola 410 laminate. They just issued a tech bulletin on the same day (coincidence???) that we found the problem. It mostly talks about handling (i.e. environmental storage) and pre-bake operations to prevent issues like this.
Electronics Forum | Mon Oct 30 10:40:30 EST 2006 | SWAG
We are performing a pre-bake + reflow experiment on this same material today per mfg's recommendations. I'll let you know what happens.
Electronics Forum | Thu Nov 16 10:15:12 EST 2006 | SWAG
Does anyone have new info on their ROHS PCB delam. problems? We ran two profiles (different from ours) per supplier recommendations with no improvement on this problem. These profiles included a plateau or soak at 190 deg. C for 20 seconds and a sl
Electronics Forum | Thu Nov 16 19:21:48 EST 2006 | swag
Yes - Thanks, Mark. I'll keep you posted on anything we find out on our stuff.
Electronics Forum | Thu Nov 16 21:14:19 EST 2006 | davef
SWAG: Look here: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=45013
Electronics Forum | Tue Oct 24 17:31:57 EDT 2006 | SWAG
We have a SMT part that has been adhered to a board using Loctite 3609. I can't find anything in the product specs. on how to release the bond to remove the part. Does anyone know?
Electronics Forum | Thu Oct 26 15:53:08 EDT 2006 | fabio
I'm having a eletrical problem in my SIPLACE HS50. all the servo boards are off, when i measure the "200V" i'm having nothing but a headache... please help me.
