Electronics Forum: thread (Page 2476 of 7890)

Conformal Coat Thermal Conductivity

Electronics Forum | Wed Apr 18 11:25:06 EDT 2007 | jdumont

We use 1B73 Acrylic and coat right over an IBM processor which gets a heat sink mounted on top. Never had an issue after 5 years of production. Dont forget to post if you find anything out though.... JD

Conformal Coat Thermal Conductivity

Electronics Forum | Wed Apr 18 21:35:26 EDT 2007 | davef

Thermal conductivity [W/m-*C] * Conformal coating [AR, ER, UR]: 17-21 * Epoxy molding compound: 0.6

Conformal Coat Thermal Conductivity

Electronics Forum | Thu Apr 19 08:08:21 EDT 2007 | cecil

Dave, Where did you find that info? having a hard time getting info from Humiseal. Thanks

Conformal Coat Thermal Conductivity

Electronics Forum | Thu Apr 19 08:29:59 EDT 2007 | davef

Look here: http://www.humiseal.com/cc_handbook/cchandbookpage4.html Maybe those dead-butts at Humiseal should pay us

Conformal Coat Thermal Conductivity

Electronics Forum | Thu Apr 19 09:44:00 EDT 2007 | cecil

Thanks for the link!!! Don't know why I couldn't find it. Seems like every day is Monday this week!!

Conformal Coat Thermal Conductivity

Electronics Forum | Thu Apr 19 14:00:28 EDT 2007 | cecil

Dave, When we converted the Humiseal thermal conductivity info into W/m-*C we came up with .167 - .209. Did we do somthing wrong with our conversion?

VacuNest

Electronics Forum | Wed Apr 18 10:09:32 EDT 2007 | Mark

Hello, Does anyone uses shape memory board support for screen printer called VacuNest from Novatec company.? Is it realy worthy to buy it and flex solution? What is cons and prons? Regards Mark

Swatch Group Granted Lead Exemption?????

Electronics Forum | Wed Apr 18 14:14:51 EDT 2007 | flipit

I heard that Swatch was granted their exemption to use lead solder for anything under 800 microns pitch. Is this true? Can't find a thing on the Web stating that this exemption was granted. Chris

Swatch Group Granted Lead Exemption?????

Electronics Forum | Fri Apr 20 10:28:55 EDT 2007 | James

I wonder if you could push this to exempt any board with SnPb paste applied to the entire board as long as it has fine pitch parts? hmmmmmmmmmmmmm

Swatch Group Granted Lead Exemption?????

Electronics Forum | Fri Apr 20 11:04:24 EDT 2007 | patrickbruneel

James, Smart thinking!! That�s what Swatch and probably Sony does. And to set the record straight Japan doesn�t have a lead ban in solders only a recycling program similar to the European WEEE


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