Electronics Forum | Tue Nov 11 16:30:08 EST 2008 | naynayno
Occasionally solder mask thickness is believed to be the cause of gasketing challenges during paste printing. We currently specific IPC-SM-840 on our fab drawings but this provides no limits or guidelines on thickness. I do not want to cause an unr
Electronics Forum | Wed Nov 12 09:39:11 EST 2008 | markhoch
Thanks Dave! I'm fighting the very same battle. Specifications are sparse on the subject, but you offer a very viable solution. (As usual!)
Electronics Forum | Wed Nov 12 10:35:05 EST 2008 | davef
It's amusing that usually we are complaining to our suppliers about not getting enough of something, here we're complaining about getting too much.
Electronics Forum | Tue Nov 11 17:35:08 EST 2008 | davef
SM-840, is a material qualification document only, with all the test requirements applicable only to a defined test coupon, not to production boards. So, it's useless for what you're trying to accomplish. As assemblers use A-610 - Acceptability Of E
Electronics Forum | Thu Jul 29 08:00:34 EDT 2010 | markhoch
Does anyone know of a good gasketing material that will hold up over time in a select coat fixture?
Electronics Forum | Wed May 26 15:02:40 EDT 1999 | Paul Bonstrom (SGI)
Looking for help in finding suitable high temp gasket for use in smt assy support application. Gasket used to restrain flex on smt module in area prone to localized heating due to nearby device removal (hot air). Current gasket mtl (neoprene) degra
Electronics Forum | Wed May 26 16:36:02 EDT 1999 | John Thorup
| Looking for help in finding suitable high temp gasket for | use in smt assy support application. | | Gasket used to restrain flex on smt module in area prone | to localized heating due to nearby device removal (hot air). | | Current gasket mtl (n
Electronics Forum | Tue Feb 21 09:19:50 EST 2006 | Chunks
Hi Mark, Not to be condescending, but is your 265 camera in focus? I've seen one instance of this. If it�s not the camera, and you are sure all your other parameters are good, , then poor definition can be from bad snap-off or bad gasketing. Snap
Electronics Forum | Fri Dec 16 10:57:38 EST 2022 | sarason
In the automotive industry there has been a swing away from gaskets and a movement to high temp resistant sealing compounds. In all probability your original gasket would have been viton for high temp O-rings. So if that is the case the replacement
Electronics Forum | Mon Dec 19 21:34:47 EST 2022 | stephendo
To add to that we once had to replace the gaskets in a very old oven. We couldn't find any so we used a high temperature sealant. And then realized that they weren't gaskets originally, it was originally sealed with high temperature sealant. After it
