Electronics Forum | Wed Nov 28 18:24:05 EST 2001 | mparker
Back in the days when pots, skillets, etc. were made of cast iron, vegetable oils were used to "season" the iron to prevent rusting and also from the food sticking to the pot during cooking. It would be reasonable to believe that you could use the sa
Electronics Forum | Thu Jan 24 09:53:56 EST 2002 | davef
You didn�t tell us about your solder, wave temperature profile, or the distribution of the problem. So, let�s assume the solder is near eutectic and the problem is wide spread. Wolfgang makes good points. So, let's talk a different tact. When we
Electronics Forum | Thu Mar 21 18:48:15 EST 2002 | djarvis
Ummmm, from my view, You get to play with some cool gear. You get the high of "giving birth" when a new job roles out of the oven. (OK Ladies, don't howl me down - I know it's a lot less physically painful). You get that lovely look of comprehensi
Electronics Forum | Fri May 24 07:09:52 EDT 2002 | Andy Hoggan
Teh amount of silver on an immersion silver board won't effect 62/36/2 tin/lead/silver solder, however if the silver on the board is on the thick side and you have a high trace silver content in a 63/37 tin/lead then with the combination of the two y
Electronics Forum | Thu May 23 13:00:51 EDT 2002 | cyber_wolf
One more thing I want to add. Don't turn this into some big deal. Its not atom splitting, or black majic.Bottom line is that you are going to be doing some experiments to prove it to yourself and whomever else requires the data. Profiling is time con
Electronics Forum | Wed Feb 19 22:04:08 EST 2003 | davef
Blondie I've never heard of using palladium [Pd] for a ring. [Not that that means much.] See, here's a link to discussion on using Pd in jewlery: http://jewelry.about.com/gi/dynamic/offsite.htm?site=http%3A%2F%2Fwww.professionaljeweler.com%2Farchi
Electronics Forum | Fri Oct 18 17:47:37 EDT 2002 | russ
What is the determination of poor soldering fails pull test, non-wetting, visual)? I have never heard of an SMT component that has leads higher than the body of the component. Refer to IPC 782 3.6.1.7 it provide the guidelines for SMT standoff heig
Electronics Forum | Tue Nov 05 18:17:00 EST 2002 | russ
This sounds like a contamination issue with the HASL finish.(solder on lead but not on pad). I have experienced this before and it was related to the HASL process at our supplier. They found some type of contaminate in the bath (unfortunately I can
Electronics Forum | Fri Dec 13 07:49:00 EST 2002 | pteerink
I'm no math wizard, but this is my understanding Did you ever have a spirograph as a kid? Took you about 5 minutes and endless number of lines to create one circle ( and some pretty cool patterns too ). To create a square ( or diamond ) you only n
Electronics Forum | Wed Dec 18 10:10:07 EST 2002 | davef
No, sorry not on "Dave's Bookshelf". My basis is a study done at IBM. I reference it here: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=4941&#Message19050 Responding differently, you're correct. If you have a
