Electronics Forum | Wed May 27 18:53:26 EDT 2015 | ldempsey
An AOI is only as good as the templates taught into it. How would you like to build 1000 boards and have them pass your in-line AOI, only to find out later, there was an incorrect reel loaded? A slightly different shade of light brown cap, but st
Electronics Forum | Fri May 29 04:37:24 EDT 2015 | buckcho
Hi Alexei, We have met in the past ( simona - > PCB ) Thank you for this input, I might consider > it ! Hello, validating a whole line can be tricky. I can advise you to validate each machine (not the transports) and then put them together in one
Electronics Forum | Thu Aug 22 04:56:34 EDT 2019 | hathawayc
Hi,I am a newone here.I wonder if the copper strip can be tin welded on PCB board?How should it be welded?Are there any requirements?Are there any defects?
Electronics Forum | Fri Feb 27 02:19:26 EST 2015 | sarason
When I and some friends worked on this project we were aiming for an hour turnaround time. But as the years of development went on we upped the board specification considerably. Also the world changed under out feet as we could get commercial protot
Electronics Forum | Sun Mar 01 04:24:06 EST 2015 | 3dpcb
Thanks Sarason, You are right that chemists and physicists now have some new tricks. Using nano-chemistry the physical properties of the materials change. The melting temperature of our nano-particle silver is below 150C. The insulator is also a nano
Electronics Forum | Tue Jan 20 08:38:37 EST 2009 | davef
MrDif: You don't add fresh paste to used paste? We add fresh paste to used paste on the stencil to replenish the paste consumed while printing boards, so that we maintain a nice thumb-size roll of paste. We change the used paste when we clean the ste
Electronics Forum | Thu Nov 05 09:10:23 EST 1998 | smd
MA: my internet e-mail isn't working at the moment, but I'd really love to see the conversion you created. My fax is 716-256-0792. Do you have a Dek printer or Omniflow oven? Many thanks to you. | I assume that you're dealing w/ Universal's SMPI co
Electronics Forum | Thu Feb 26 05:57:44 EST 2015 | sarason
To get real conductivity in your traces you will need to remelt your copper or silver tracks. This means 850oC. The other method is plating at low temps, or etching. Epoxies like all carbon based compounds vaporize at 400oC. Next problem epoxy fibre
Electronics Forum | Sun Jan 18 09:20:26 EST 2009 | davef
We're not sure of the condition of your solder paste. So, afte 24 hours, if it's: * Unused, in a reclosed container, maybe a week of life depending on the environment * Used, scrap A simple coalescence test can quickly determine the condition of sol
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