Electronics Forum: all (Page 9 of 1439)

Pardon me all for intruding in this valuable technical....

Electronics Forum | Thu May 08 21:04:43 EDT 2003 | davef

It may seem like a year, but this has been going on for closer to six months. Oh, it's because the administrators at SMTnet think is soooo valuable to us that sales-types have an opportunity to dredge-up and open ancient threads for their self-promo

Same wave process do not apply to all finish board

Electronics Forum | Fri Oct 14 09:21:36 EDT 2005 | lupo

According with temperature vs. wetting force diagram 245-250C/degrees is better, so lower temperature than 500F means better solder fill. If the speed is too lower the solder suck out form the hole. Usually 120-150cm/min. is good. (2-4s contact

Same wave process do not apply to all finish board

Electronics Forum | Fri Oct 14 10:55:07 EDT 2005 | Mika

We have a simular problem with Ni/Au; especially whith pcb thickness more than 1.8mm. Note: These boards have been through reflow process also. 1.)Is there a maximum board thickness where it would be almost impossible to get a decent hole fil? 2.)Wi

Same wave process do not apply to all finish board

Electronics Forum | Fri Oct 14 13:12:30 EDT 2005 | Mika

Thanks Patrick, I our mixed standard HASL/RoHS production area; our customer have choosen Ni/Au plating for their RoHS boards. What You are saying (3.); is that we should be more attentive on the quality of the pcb manufactory. Even if our customer

Same wave process do not apply to all finish board

Electronics Forum | Fri Oct 14 17:54:15 EDT 2005 | Mika

Thanks Patrick for the replay, No, we do not mix the alloys nor Pb pcb:s/RoHS pcb:s in the case I described. It is simply as this: With both the different soldering processes we facing this phenomenon; but whith the RoHS SN100 or SAC305 it turns out

SMD Tape Extenders - Are they all rubbish?

Electronics Forum | Wed Dec 08 10:20:16 EST 2010 | kevslatvin

Not familiar with your machines, but on out Assembleon Opals we take the used cover tape from another feeder and tape it to the cover tape of our cut tape we are loading with some thin double stick tape. The 3m VHB type. Then we wrap that with a piec

Mirtec MV-2HTL programming:Why ATT doesn't teach all same parts?

Electronics Forum | Fri Feb 04 16:55:29 EST 2011 | rodrigo

Thanks for the reply. I understand the second owner package is $6k plus travel fees. Is there another option for getting the newer software ... at a much lower price? Is the newer software that much better than the one we're using? A do-it-yourself k

CP4 jerks all axis after power up and reset sw...

Electronics Forum | Mon Apr 16 13:31:36 EDT 2012 | jdengler

Have you tried to restart F4G and/or MCS/30 after flushing the CP4 memory? I have occasionally ran into the comm error after a reset start. Leave the machine on and restart F4G or the MCS/30 whichever normally is hooked up. If it still won't commu

Same wave process do not apply to all finish board

Electronics Forum | Fri Oct 14 09:58:13 EDT 2005 | patrickbruneel

Here's what I believe is happening. The main difference between the HASL boards and the gold plated boards is that HASL boards are pre-soldered. HASL boards need very little flux activity to get good hole fill and the machine settings have a wide pro

Pardon me all for intruding in this valuable technical....

Electronics Forum | Fri May 09 17:47:37 EDT 2003 | slthomas

I think medical manufacturers are more inclined to proceed with caution because they have so much more at stake when something fails out of the box, or worse yet during a code. A lot of them locally have gone outside for pcb assembly, but stayed dom


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