Electronics Forum | Thu Apr 24 12:18:01 EDT 2014 | cyber_wolf
You must thermally profile your circuit boards with a data-logger and thermocouples. Just putting in oven set points and looking at solder joints is not enough. Reference IPC-7530
Electronics Forum | Thu May 24 19:19:20 EDT 2001 | davef
Try: * Poor looking solder connections * Good looking solder connections * Reliable solder connections Look to Ch 5 of "Manufacturing Techniques For Surface Mounted Assemblies"; RJ Klein Wassink & MMF Verguld; Electrochemical Pub; ISBN 0-901150-30-4
Electronics Forum | Thu Oct 16 12:35:03 EDT 2014 | upguy
We have tpsys 1.5.18 on our TP9-UFP. We are attempting to run "Optical Centering Calibration". Following the instructions in the manual, we have centered the cross hairs on the camera frame, loaded a "base" board then the L-19-447 calibration boar
Electronics Forum | Mon Feb 12 09:44:47 EST 2007 | SWAG
Enhanced board set-up, set conveyor width, load board, (your fiducials must be accurate!), use two fiducials to set reference point, click on placement(s), move crosshair to centerpoint, use two point teach to teach one point in the center or use cor
Electronics Forum | Tue Feb 26 07:46:04 EST 2013 | stephendo
If anyone still disagrees with you point, out that the "of each" refers to individual pads. If the 95% refered to 95% of the pads it would not have said "of each". Also someone correct me if I'm wrong but isn't this standard to do with solderabilit
Electronics Forum | Wed Aug 17 15:30:56 EDT 2005 | DannyJ
Hi Jaya, Here's a definition, towards the bottom of the listing... http://en.wikipedia.org/wiki/Fiducial Mainly, a 'global' fiducial refers to the outside of the board, usually on the scrap rails. This allows the machine to locate two reference
Electronics Forum | Tue Jun 23 08:20:03 EDT 2009 | rway
Refer to this article, http://articles.jimtrade.com/1/212.htm The main advantage is of course the density of the board. All the advantages for SMT over PTH are related to the decrease in component size. This is a good selling point for your custom
Electronics Forum | Mon May 28 17:43:33 EDT 2001 | davef
Does this device have a integral heat sink / metal slug on top, like a TI TM320C6XXX er a Altera EP20K4XX? Compare the size of the pads on the interposer and the board. Compare the type solder mask [NSMD vs SMD] on the interposer and the board. Wh
Electronics Forum | Fri Nov 25 11:55:22 EST 2022 | poly
So I'm attempting to run feeder teach for my platform tray feeder... but I've got no idea what first point I should teach is... normal is the end pin of the feeder but this is for the ptf conveyor... so I've got no idea. If I just teach each corner
Electronics Forum | Thu Oct 19 13:38:29 EDT 2006 | SWAG
We use random local fids on our Universal equipment - (they don't create a centerline placement point). On your equip., maybe you could try to shoot/dive-bomb the QFP(s) all by themselves using the 2 "random" local fids as your baseline reference po
