Electronics Forum | Fri Aug 21 12:54:21 EDT 1998 | Tryin' and Learnin'
HASL: (hot air solder leveling) is a process used to cover the Cu. Either Sn/Pb is used or Ni/Au or some other combo. In one case you create a land pad and in the other (with resin)you cover the Cu so that you only have a "trace." Is that correct so
Electronics Forum | Mon Jan 07 20:37:15 EST 2002 | davef
For soldered areas, we like to keep gold thickness substantially below the maximum you propose. Search the fine SMTnet Archives for our discussions on the topic of acceptable levels of gold with solder connections. Let�s fix this �no one seems be s
Electronics Forum | Mon Feb 25 18:10:13 EST 2002 | stepheno
When you say "dropping" I assume you mean "rejecting" them because co-planarity is outside the tolerance you have set and the machine is putting them on the reject belt or tray as the case may be. I worked for a CM with an MPA-G3. One customer suppl
Electronics Forum | Mon Jul 01 20:44:17 EDT 2002 | davef
Actually, the white res were caused by the water carrier in your Lonco 23F reacting with the res from the nc flux used to solder the component in place. Comments are: * Some nc flux res are cleanable, some are not. Your supplier [Alpha?] can probab
Electronics Forum | Tue Jul 16 07:18:37 EDT 2002 | davef
Hey Ken, you open a can of worms, you can�t all of a sudden decide �they�re too slimey�. You gotta fix this one!!! If that means a Chinese visa, we�re behind you this one. {Everyone together now, "Go Ken, go Ken. He's or guy!!!] The fishy part:
Electronics Forum | Sat Oct 26 08:01:17 EDT 2002 | davef
IIT is a reputable supplier. They will be more than happy, happy to help a newbie get a good product. Continuing, at one level of product design sophistication ordering by remote will provide you with a perfectly acceptable stencil. But on the o
Electronics Forum | Fri Jan 24 16:46:21 EST 2003 | MA/NY DDave
Hi, Distance Engineering is always difficult. I am guessing that the old machine and process ran wonderfully / acceptable. If you still have the old machine, how about running an empty board through it and then the new machine. Without flux observ
Electronics Forum | Mon Apr 28 18:34:17 EDT 2003 | Brian W.
We typically do not try to pick up and hand placve chip resisstors and capacitors. The risk and cost is too high for components that are a penny or less. We take into consideration that on many of our components, someone will have to test them to v
Electronics Forum | Tue Oct 21 10:24:54 EDT 2003 | russ
Whoever established the PPM rates should tell you what it is covering (solder joints/assemblies) PPM is nothing more than a ratio. Determining quality levels is really up to you/company and how you want to measure your quality. This can be anything
Electronics Forum | Sat May 29 15:58:37 EDT 2004 | Patrick Tarell ... Automation Engineering Jabil Circuit
Hello Alan! We have used both chipshooters, we also have a Mydata with the hydra head... We switched entirely from Fuji CP7 to the UIC HSP4796 and now HSP4797. The CP7 is a nice machine but we were very unhappy with the support structure within Fu
