Electronics Forum: 354 (Page 1 of 2)

Re: PCB delamination

Electronics Forum | Mon Feb 05 14:45:54 EST 2001 | pteerink

Thanks Pete, Looks like I got the info I needed Phil

Re: PCB delamination

Electronics Forum | Mon Feb 05 09:21:22 EST 2001 | pteerink

Talking about delamination...... I have a customer requesting info about the max temperature ratings for FR4. Can anyone point me to a good source? ( and yes, I HAVE checked the archives, to no avail.....) Phil

BGA Reliability

Electronics Forum | Tue Jul 23 14:17:46 EDT 2002 | davef

Hell-loooow!!! Why not contact the document author? Try: Reza Ghaffarian - Reza.Ghaffarian@jpl.nasa.gov Jet Propulsion Laboratory Phone: 818 354-2059 FAX: 818 393-5245

PVA conformal coating machine

Electronics Forum | Mon Aug 09 07:13:08 EDT 2010 | raghu

We have PVA 354Bench top conformal coating machine. We are going to procure the Humiseal 1B31 material. Is this material is suitable for this model of machine? Is there any special pecautions to be taken while programming? What are the main problemsd

PVA conformal coating machine

Electronics Forum | Tue Aug 10 01:02:31 EDT 2010 | raghu

We have PVA 354Bench top conformal coating machine. We are going to procure the Humiseal 1B31 material. Is this material is suitable for this model of machine? Is there any special pecautions to be taken while programming? What are the main problems

Re: PCB delamination

Electronics Forum | Mon Feb 05 11:45:07 EST 2001 | peterbarton

Phil, One source for this information is form the manufacturer Park/Nelco. They have a large website and give specifications for all sorts of laminates, including FR4. Try http://www.nelcointernational.com/parknelco/fr4epoxy.htm. I'm sure that ot

Re: PCB delamination

Electronics Forum | Mon Nov 06 16:27:48 EST 2000 | Boca

Bingo! Sounds like you solved your mystery. You've checked your key process steps, the product has been running in your processes for some time with no process changes. This all points back to one of your process input, i.e. the fab. Experience s

Re: PCB delamination

Electronics Forum | Mon Nov 06 21:02:30 EST 2000 | Dave F

I love this!!! Two whizzettes with the same information and they spin-off in two different directions. Gad this is great!!! Delamination is a pretty broad topic, but that you have a problem with two suppliers makes me think the delamination is cau

Re: CPk

Electronics Forum | Mon Dec 06 17:17:57 EST 1999 | Brian W.

I have not used a vision inspection system for this. We used a digital x-y coordinate measurement system. With this, we could find the center of the part and then measure where it was in relation to a fixed point, like a fiducial. Some of the syst

stepped stencils

Electronics Forum | Fri Feb 24 08:29:25 EST 2006 | davef

Step stencils are not widely used, due to: * Higher cost as compared to uniform thickness stencils * Danger of solder paste smearing at least close to the steps * Difficulty of cleaning the stepped stencil underside (the steps cannot be on the upper

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