Electronics Forum | Tue Mar 30 22:43:36 EST 1999 | dean
| Does anyone know of a contract manufacturing house that can guarantee smt component placement and can verify placement of +/-.015? | | Thanks in advance | Question: mm, inches, or mils? I can do it. However, what is your reliability level? 9
Electronics Forum | Fri Apr 16 15:12:12 EDT 2021 | jsmith01
Does anyone know where the power to the lambda, chip sensors comes from on a Electrovert EPK plus? I have an intermediate issue with these sensors loosing power and the wave just keeps going higher and flows over the pot. I have replaced the senors
Electronics Forum | Wed May 27 11:54:29 EDT 2009 | allwave
Armando, Make sure chip wave is pumping evenly across. These TD machines require a lot of maintenance (deep cleaning)to ensure all the holes on nozzle are open... My two cents, George
Electronics Forum | Fri May 29 02:08:08 EDT 2009 | cobar
Check that you are getting an even spray pattern from the fluxer.Check that the chip wave nozzle is clean and if possible feed the PCB in to the wavesolder unit at 90 � or 180�.
Electronics Forum | Tue May 26 06:56:40 EDT 2009 | xinxi
Hi! From your post, it seem like the wave did not really touch the component. You probably need to get the both wave height correct and that it hits the component.It is normal for solder to come through the PCB when using chip wave. The through-hole
Electronics Forum | Wed May 27 07:53:41 EDT 2009 | padawanlinuxero
Thanks ! I will try your recommendations, about the flux and the preheaters, yes they seems to be ok I will bring down de conveyor speed because it looks like if it is to fast is set to 3.6ft thanks again!
Electronics Forum | Mon May 25 21:10:28 EDT 2009 | padawanlinuxero
Hello !! I have a problem with my wave solder oven, in one of the products we made has connectors on one side of the pcb and in the other one has SMT components the process is kinda tricky on the SMT components we use an adhesive and put to the refl
Electronics Forum | Fri Jun 01 14:50:29 EDT 2001 | Matt Gormont
I am looking for outline tolerances of a flip chip with a pitch of .25mm. Bumps are made of 63/37 solder. Key tolerances are bump height and positional tolerance of the bumps. Can anyone HELP?
Electronics Forum | Fri Apr 18 16:53:25 EDT 2003 | takfire
DST, What was the crack signature? Was the crack parallel with the internal electrodes or 45� with the terminal electrode? It is also important to determine the orientation of the failed caps on the PCB (in regards to depaneling). Perhaps the cap
Electronics Forum | Thu Sep 11 23:50:51 EDT 2003 | Dean
Epoxy is hydroscopic. A cavity will form when the cure furnace reaches the boiling point of water. The steam expansion creates the pocket. It can be large enough to be filled with molten solder from the wave machine and cause a hard short under th
