Electronics Forum | Tue May 11 09:44:48 EDT 2010 | dyoungquist
Lower humidity: Pros: Helps with mositure sentative devices. Cons: 1)Paste exposed to the dry air during your porcess will dry out quicker. 2) Drier air promotes more ESD issues, i.e. more electrostatic generation.
Electronics Forum | Tue Aug 03 17:13:41 EDT 2010 | bradlanger
Craig, If it is LF Hasl it sounds like it applied too thin exposing the intermetallic layer wich is not solderable. We call out a minimum thickness of 80 microinches and have good results. We have had shops in the past that did not control the Hasl
Electronics Forum | Tue Dec 14 02:19:03 EST 2010 | sachu_70
With lower Humidity levels, we expose to greater risk towards ESD related failures seen on components. Pl. ensure to have your entire work area fully guarded against ESD and maintain proper material handling instructions across the entire flowline un
Electronics Forum | Wed Jan 26 14:33:14 EST 2011 | remullis
Exposed copper on the edges of boards is what I'm refering to. could be a potential shorting issue in your housings. Just depends on the application. We have cut into ours and use humiseal to dress them off. Rich
Electronics Forum | Thu Oct 27 16:24:18 EDT 2011 | davef
SJS2303: That's our first thought also. We agree that dealing with fly-shit does not worth the amount of time it takes.
Electronics Forum | Fri Nov 04 21:57:37 EDT 2011 | machinehead
When I'm Tearing down a Job, And removing the tape and reel from Agilis Feeder. Their is a gap of at least 10-12 Parts. Unpicked parts, When the knife on the feeder spreads the tape aside. and leaves this gap of feel falling parts.
Electronics Forum | Thu Jan 10 11:22:48 EST 2013 | pbarton
Looks to me like under etching of the underlying copper and the gold is just plated to all of the exposed copper surface. Is this characteristic the same on all solderable pads? You will not be able to remove this gold.
Electronics Forum | Tue Apr 09 10:50:11 EDT 2013 | emeto
Hello everyone, I am curious if you label your solder paste jars with additional label. We want to use our own label showing when the paste was opened and how many hours it was exposed. Any thoughts will be appreciated. Thank you!
Electronics Forum | Fri Apr 26 16:26:55 EDT 2013 | emeto
Hi, thanks for your answer. I was thinking to go even deeper by counting the hours the paste was exposed, but it probably doesn't make a lot of sense, especially considering the fact that my operators will add paste when the level goes too low. I wi
Electronics Forum | Mon Apr 07 15:22:17 EDT 2014 | garym4569
Found the issue. The footprint is incorrect. The inductor completely shields the paste from heat. Slid the inductor on the pad to expose the pad and paste, and perfect solder joint. This part was a last minute design change with a larger body.
