Electronics Forum: 10 (Page 716 of 1927)

PCB Delamination in PTH hole

Electronics Forum | Mon Oct 26 12:40:08 EDT 2009 | awtm

pls find attached photo from Supplier saying that the failure at pth hole was due to blistering caused by moiture evaporate rapidly resulting delamination occur on FR-4 material from an old PCB (3yrs). Pls advise if attached picture confirms such co

Testronics 504 AOI

Electronics Forum | Mon Oct 26 12:44:57 EDT 2009 | ericg2000

Does anyone use the Testronics 504 AOI machine? I have a few questions for you if you do.

Techspray Licron Crystal

Electronics Forum | Mon Oct 26 16:28:31 EDT 2009 | operator

Has anyone used this spray? For what application? How durable is it? Was thinking about using it on sheet metal. Thanks, B

Techspray Licron Crystal

Electronics Forum | Wed Oct 28 07:07:40 EDT 2009 | davef

Never used it, but it looks interesting. Since it's clear, over time, how do you tell that it's still there and dissipating charge?

CSM84VZ assistance needed

Electronics Forum | Tue Oct 27 13:27:33 EDT 2009 | ldm

I am setting up a CSM84VZ pick-n-place for the first time. Everything works fine except the speed in auto run mode is very slow and not at the production speed. Any help is appreciated. LDM

defects in pcb manufacturing

Electronics Forum | Wed Oct 28 09:28:02 EDT 2009 | spitkis2

I agree with you. Personally, I would either return them and look for a new supplier or scrap these boards. Unless your customer provided these boards and gave you the go ahead to populate them, they will not be too pleased about the build.

Magnetic Bracelets?

Electronics Forum | Tue Oct 27 17:12:07 EDT 2009 | nwolford

Does anybody know if, or have data to support that, magnetic bracelets are bad to wear in an area that does circuit card assembly?

Magnetic Bracelets?

Electronics Forum | Tue Oct 27 22:57:40 EDT 2009 | davef

We don't think the magnets will affect anything except peoples' wallets. We would review the turbocharging effect of the bracelet materials as a potential ESD charge source.

reflow oven venting

Electronics Forum | Tue Oct 27 18:07:39 EDT 2009 | burb1999

Have 8" metal exhaust going out the oven to the roof and no filter or flow meter. Have used a filter and flow meter before, anyone have any info on this or where to purchase the needed items? Thanx, Todd

reflow oven venting

Electronics Forum | Tue Oct 27 22:48:48 EDT 2009 | fulldrawmike

Have 8" metal exhaust going out the oven to the > roof and no filter or flow meter. Have used a > filter and flow meter before, anyone have any > info on this or where to purchase the needed > items? > > Thanx, Todd McMaster Carr has just abo


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