Electronics Forum | Tue Feb 07 11:26:40 EST 2006 | Cal Kolokoy
At the wave, you should collect data on the critical process parameters. The cliche being, it's better to control your process via SPC versus performing SPC on defect data. Perform a DoE to determine which variable interactions have the greatest eff
Electronics Forum | Thu Feb 23 02:46:16 EST 2006 | INGE
It isn't an FDA validation. I think Steve has centered the problem. I have already defined all the steps and all the procedures of the process, but now I must run X boards, Y times, through each piece of equipment (as he said before); the question is
Electronics Forum | Fri Apr 27 10:33:58 EDT 2007 | ck_the_flip
Jeremy, well said! Thanks for "validating" my theory... LOL I agree that the sampling frequency, AND methodology are key things with 3D inspection. 3D will give you some insight onto how your paste (rheology, viscosity, thixotropy)AND process are
Electronics Forum | Tue May 20 09:34:28 EDT 2008 | roc2x
Well something is different isn't it? * Paste * > Part supplier * Board fabrication * Was the > profile that you reference the measured > temperature or the the settings keyed into the > oven? > > The cross sections seem to show less > than exp
Electronics Forum | Thu Jul 03 08:55:37 EDT 2008 | andrzej
Hi, I might say I have some experience (1 year) in wave soldering. Yes I have set all parameters to run PCBs through wave solder. Yes, I have run new products on wave solder and had to find solutions for problems encountered. I understand relationsh
Electronics Forum | Sat Feb 14 08:30:08 EST 2009 | smartasp
Thank you all for your valuable inputs. Have having done some more investigation we have realized that there is actually no standard as such to which the ROHS components have to be manufactured aside from the contains of substances like PB and al o
Electronics Forum | Thu Aug 27 13:14:49 EDT 2009 | ghepo
I have already told you that is not possible solve this problem by e-mail, without perform a detailed failure analysis. Also I have told you to procede by exclusion. Are you sure, by tests, regarding the PCB quality ? Are you sure regarding the solde
Electronics Forum | Fri Jan 06 13:47:15 EST 2012 | davef
Your starting [and finishing] point should be IPC-7351B Land Pattern Calculator and Tools - http://landpatterns.ipc.org/default.asp For more, look here: * http://www.smtnet.com/bob-willis/pbdai.html * http://www.onboard-technology.com/pdf_novembre
Electronics Forum | Tue Apr 30 21:13:43 EDT 2019 | marcarmo
Caro amigo Charlien poderia me dizer como proceder o item 11? do arquivo pdf ms parameter window? para mover a cabeça para bloco de calibração? deve ter algum comando ou atalho no teclado para movimentar a cabeça dela e baixar a cabeça até nivel de c
Electronics Forum | Fri Feb 25 05:42:17 EST 2000 | Istv�n Dominik
Hi, We should wavesolder a PLCC44 package. The PCB is under the design procedure now and we must specify the best parameters (the orientation (45 or 90 degrees) of the package on the PCB,the number, the positon and the size of the solder thief pads
