Electronics Forum | Wed Jul 02 02:46:44 EDT 2008 | tang
Hi Guys, I have few question would like to ask regarding pcb conformal coating: 1. Can I know which masking material is the best for easy apply, fast cure, fast & easy to remove after coating & baking. And no chemical reaction which will whiten the
Electronics Forum | Wed Jul 02 20:39:13 EDT 2008 | mika
Check this out .http://help.sap.com/saphelp_di46c2/helpdata/EN/7f/a7e7434d6011d2b438006094b9c9be/content.htm That's one way how to do it. Or read this: http://www.waterloo-software.com/limitations.html We have no relationship or what so ever with
Electronics Forum | Thu Jul 03 08:53:27 EDT 2008 | rgduval
I would...and then use the data of the known issues as part of the secondary analysis. The defect is a defect, one way or the other. You can use the secondary analysis of your PPM numbers to continue to drill down in the process. If your overall P
Electronics Forum | Thu Feb 05 23:55:52 EST 2009 | sachu_70
Considering a lean management on your shopfloor, any amount of inspection being done to a board, either by QA or Production personnel, does not add value to your product but instead, adds to your operational cost. You can explore to possibility of ca
Electronics Forum | Thu Jul 03 17:22:03 EDT 2008 | mikesewell
On an ACE KISS machine we could program a drop in Z height to give a peel off angle after the component was soldered. Usually not necessary as the solder at the nozzle is falling away from the lead down the nozzle. If possible, we would program a fr
Electronics Forum | Tue Jul 08 12:21:42 EDT 2008 | jwasyliw
Biggest differnce is tooling. Tooling cost with > a fixed pot - no tooling cost with programable > "moving"pot. > > There are various way to control > peel off with a moving pot. Depending on the > machine, you can use either the Z axis or the
Electronics Forum | Fri Jul 04 00:36:25 EDT 2008 | shrek
Try a linear, very flat ramp rate on the order of 0.5 degrees celcius per second. I know this is hard to accomplish with a five zone, but try to lower the first couple of zones (the preheat zone), and then spike to reflow aggressively during your la
Electronics Forum | Tue Jul 08 22:44:06 EDT 2008 | proy
I made progress and almost acceptable results by adding heat to the bottom of zone 4 HOWEVER, the core problem I uncovered last night/this morning was that the #4 top side blower had failed. I think this is the key why I was having so much trouble.
Electronics Forum | Thu Jul 10 10:25:05 EDT 2008 | gregoryyork
I guess the paste is Leaded hence the 220 Peak temp and the Sn100c is Eutectic at 227C so you need to be hotter to melt the HASL finish or you are relying on it alloying together with the paste which takes much longer. suggest running peak temp of 23
Electronics Forum | Fri Jul 04 03:54:10 EDT 2008 | aj
Hi all, The cognex card in the GSX failed to boot up during power up. The card displays the dreaded red light on the diagnostics LED. I got a quote from Dek and I think I cold buy a 2nd user machine for the same price. So my question is - can I g
