Electronics Forum | Mon Feb 20 20:57:35 EST 2006 | Cal Kolokoy
The ramp sets the stage for flux activation, and if ramping in a linear fashion, burning off some of the volatiles, but yet preserving the activators. The ramp is also intended to preheat the SMDs to prevent thermal shock. Most solder paste data sh
Electronics Forum | Wed Oct 24 21:17:13 EDT 2007 | hussman
Ramp rate is measured in degrees per second. Max and min temps are not required to to establish "ramp rate". The difference between parts, like I was describing is Delta T. But, ramp rate is a generation from this as well. Most component manufact
Electronics Forum | Tue Aug 14 21:29:29 EDT 2001 | mugen
Hi, Just to clarify the terms, traditional : aka : Ramp-Soak-Spike (RSS) profiling method tent : aka : Ramp-To-Spike (RTS) profiling method By search engines (eg. Yahoo), you can find more example profiles for your ref.
Electronics Forum | Wed Mar 24 08:37:32 EST 2004 | steveliu
Hi, Guys, Can anybody tell me what kind of reflow profile is best for a no clean solder paste: Ramp-Soak-Spike or Ramp-to Spike? The paste we are using is AIM 293DX2B. Thanks a lot.
Electronics Forum | Wed Nov 03 18:54:40 EST 2004 | jysam
i'm asking that how should we choose between RTS should be used in my process or RSS?
Electronics Forum | Thu Nov 04 08:44:49 EST 2004 | davef
Look here: http://www.tkb-4u.com/articles/soldering/benefitrtsprofile/benefitrtsprofile.php
Electronics Forum | Mon Dec 27 22:36:35 EST 2004 | Grant
Hi, Why are you worried about ramp rate on the BGA? Do you have a delta T problem on your PCB? Regards, Grant
Electronics Forum | Wed Nov 30 21:21:57 EST 2005 | Kwon Jun Kwak
any use the ramp, soak and spike profile methode, or with lead free using the straight ramp approach? What most paste manufactures recomended?
Electronics Forum | Thu Dec 01 11:46:41 EST 2005 | pjc
FYI: Most Sn/Pb and Pb Free solderpastes today are designed to run both a ramp-soak-spike or ramp-spike profiles.
Electronics Forum | Thu Mar 09 16:05:22 EST 2006 | jdengler
What type of profile are you using (soak or straight ramp)? You may need to reduce the ramp rate or increase the time at soak. Jerry
