Electronics Forum | Fri Oct 23 14:20:52 EDT 2009 | waveroom
We offer SN100C solder alloys. I was asked about SN100E which is tin/copper and cobalt. Anyone know anything about the cobalt and it's pros and cons in soldering process?
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
Electronics Forum | Tue Nov 03 18:35:28 EST 2009 | gregoryyork
was this hasl finish looks like it has been corroded from the inside of the hole wall looking at the shape of the break in plating
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.
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
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?
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
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.
Electronics Forum | Fri Oct 30 10:36:26 EDT 2009 | richie_puthotta
Hi, I see a huge solder mask shift on chip comp pads. This would result in mid-chip solder balls or solder beads. Overall, the solder mask workmanship is not acceptable. Mask is on pad.
Electronics Forum | Sun Nov 01 23:34:25 EST 2009 | 89jeong
Hello Julie Yr supplier is saying that these boards meet the requirement of IPC-A-610. I think that you need to check this requirements at least. But, it does dot mean that these are acceptable. Thanks.
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