Electronics Forum | Tue May 26 11:13:49 EDT 2009 | xinxi
Is the components on the top or on the bottom of the pcb? Have you checked whether the temperature on pcb are too high when it pass through SW that it exceeds the limit that the components can take? Do check with the component manufacture for the te
Electronics Forum | Mon Jul 06 22:17:13 EDT 2009 | emanuel
Thanks Jeff, I isolated the problem to the DC servo part. The GD3 signal in the safety circuit chain is the one that generates this L004 Feedback Error - which by the way next to it I get also (Wn) where n is changing form 1 to 3 every time I push r
Electronics Forum | Mon Jul 13 06:30:59 EDT 2009 | hcarrasco
1.- Check your vacuum a.- Check filters b.- Check air flow (the vacuum is generated by a Ventury using air flow, not air pressure) c.- Vaccum vias (Possible linth inside the vacuum lines) 2.- Check the nozzle condition (Probably broken o
Electronics Forum | Fri Jul 31 09:12:35 EDT 2009 | gregoryyork
Dear Sean Contrary to believe MOST formulators of No Clean fluxes or No Residue fluxes use organic acides that are in fact weak and benign. IF the residue was left on the board and you had a condensing atmosphere then you may see some issue with fal
Electronics Forum | Tue Aug 04 17:37:43 EDT 2009 | gregoryyork
Im not sure that 0.004% is that critical in a solder alloy. If people are using our alloy and the Nickel increases we would most probably suggest running a dopant alloy without Nickel to bring the levels back down, it is very rare to require dumping
Electronics Forum | Fri Aug 14 10:51:30 EDT 2009 | rway
If he is the same Martin Gershenson who works for Christopher, then I'de believe he's being sneaky. We demoed one of their units three years ago, along with Mirtech and YesTech. Of the three, they were the only ones who wouldn't let us experiment w
Electronics Forum | Tue Aug 18 10:17:15 EDT 2009 | grantp
Hi, You don't need X-ray and all that crap. I would get an old MYDATA TP9 or something like that, and a manual stencil printer and a batch oven or a small inline oven. Should do the trick and be very low cost. Should be simple to use as well. Tha
Electronics Forum | Fri Aug 21 13:45:12 EDT 2009 | rossi
We are using a vapor phase oven which we have used successfully for a number of years with both leaded and unleaded solders. Recently we experienced problems with a no lead BGA that has low silver balls. The problem is that the soldered boards do no
Electronics Forum | Thu Aug 27 10:22:59 EDT 2009 | dwl
We have an opportunity to purchase a Yestech YTV-1000 AOI machine. I am looking for opinions on how well they work and how they compare to the newer Yestech B3 AOI systems. We are a high mix, low volume EMS company. We do not currently have any exp
Electronics Forum | Thu Sep 03 12:03:52 EDT 2009 | Sean
Hi All, I have few questions about creeping corrosion that potentially happen on lead free immersion silver PCB as below: 1) What test that we can conducted to verify whether the failure we seen is due to creeping corrosion? 2) I heard that lead fr
