Electronics Forum | Sat Oct 09 01:13:31 EDT 1999 | Glem brian
Always experiencing dross in pot with different characteristic such as color, shape, dry/wet etc. Any paper, wetsites provide the more comprehesive explanation on its characteristic
Electronics Forum | Sat Oct 09 08:35:34 EDT 1999 | Dave F
| Always experiencing dross in pot with different characteristic such as color, shape, dry/wet etc. Any paper, wetsites provide the more comprehesive explanation on its characteristic | "Dross Myth Vesus Fact," R. Woodgate, SMT, 10/98
Electronics Forum | Thu Jun 24 11:41:10 EDT 1999 | John Thorup
| Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody hel
Electronics Forum | Wed Oct 28 14:52:40 EST 1998 | Barry Kauffman
Can anyone supply me with info on determining the volume of paste left on a pad once reflowed compared to the intial amount put down? Is there a formula or something?
Electronics Forum | Thu Jun 25 06:02:41 EDT 1998 | Chiakl
Hi there, Does any one know what is TCE for fully wet saturated FR4. I came to know that for Dry FR4 the TCE is about 15-19 PPM �C. Is that true? Appreciated for your help. rgs, chiakl
Electronics Forum | Thu Sep 06 11:17:13 EDT 2001 | Steve
I may be wrong, but I'm thinking that nitrogen has less effect on solder bridging as does the amount of solder that is present. Nitrogen allows better wetting becasue there are no oxidation effects. If you have solder bridging problems, look at the
Electronics Forum | Wed Dec 19 10:21:16 EST 2001 | davef
Crank-up the volume. Look here for a similar discussion http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=4735&#Message18380&
Electronics Forum | Wed Feb 20 13:16:06 EST 2002 | pjc
Paste w/ 2% silver has a eutectic temp of 179deg.C vs. 183deg.C for std. 63/37. The 2% can give better wetting in some applications.
Electronics Forum | Mon May 20 21:28:22 EDT 2002 | davef
Are you sure you are using the correct solder paste question, once again. How many cycles times allow to proceed in reflow for these type of packages. => Dunno. What does the supplier say?
Electronics Forum | Wed May 22 20:30:52 EDT 2002 | ianchan
xzinxzin, de Process Engineer, Ah....HAH! bingo! go search the fine SMTnet archives. cuppa of threads posted within specific to this nature of inquiry of yours.
