Electronics Forum | Thu Jun 19 15:24:36 EDT 2008 | markhoch
What's the word on the street on the New Generation Samsung Machines? (SM421 and SM411) I know they got a bad rap a few (5) years ago, but it seems like they're doing everything they can to quell that. (Bumper to Bumper three year warranties includi
Electronics Forum | Fri Jul 11 09:37:16 EDT 2008 | realchunks
BGAs are actually easy, but proper stencil design, solder paste placement and oven profiles are a must. Especially oven profiles as this is your only indication that the inner balls have reached proper temp, since you cannot visually tell. If you g
Electronics Forum | Thu Jul 17 08:28:20 EDT 2008 | jdumont
With our last two ovens (Heller and now BTU) spanning the past 7 or 8 years I did it once a month and have never seen any issues. Reflow ovens these days with PID controllers know exactly what they are doing inside well before you run a profiler thro
Electronics Forum | Sat Aug 09 19:25:07 EDT 2008 | thaqalain
Thanks for reply Thats in my mind to remind Process team to modify MPI. We already having some trouble with other components and my eyes were focused on specific problems +what was specifiewd in MPI to be see closely. Do you think we need to revise
Electronics Forum | Tue Aug 26 22:56:39 EDT 2008 | omid_juve
we have solderability problem(some pins aren`t soldered) with two devices in our board with the below detail EP1K30QI208-2 brand:ALTERA with the package PQFP-208 TMS320VC5416PGE160 brand:TI with the package TQFP144 these two devices are pb free but t
Electronics Forum | Wed Aug 27 14:58:21 EDT 2008 | omid_juve
we have problem in setting the density of a no clean flux for using before wave soldering . first we dilute the flux but we have many short circuit problem between the pads of edge connector,then we densify the flux all the short circuit is removed b
Electronics Forum | Thu Aug 28 11:02:28 EDT 2008 | omid_juve
we have two similar pcb from two different pcb manufacturer one of them passed the wave soldering without any short circuit and residue and another one passed it with many residue . don`t you think that the type of solder mask from these two pcb manu
Electronics Forum | Tue Sep 09 16:10:15 EDT 2008 | davef
We don't know a Siemens S-27 Error Code from a shoe box, but our old friend Stefan Witte is wizard on Siemens machines. He has posted some troubleshooting guidance on his site. If that doesn't help; contact him, plead for mercy, and he probably will
Electronics Forum | Wed Sep 10 11:34:05 EDT 2008 | patrickbruneel
Amen to that!!! When I was still on the production floor and had problems I couldn't go to the production manager and tell him/her we had to shut down the production line and have the boards send in for analyses. (He/She would have seriously questio
Electronics Forum | Tue Sep 16 09:35:12 EDT 2008 | babe7362000
Can anyone tell me if there is a procedure for storing raw PCB's? We currently are seeing an issue with lead free boards with dewetting. We tracked it down to one or two datecodes, but not all of the boards have dewetting. Is there a expiration da
