Electronics Forum | Mon Nov 26 20:41:24 EST 2001 | davef
Which ramp is this? * Ramp to preheat? * Preheat? * Ramp to spike?
Electronics Forum | Mon Feb 20 19:35:28 EST 2006 | darby
From Indium Guru, (Hi Rich). "Ramp can be taken anywhere.... but mainly you want to look at the ramp when the flux is doing it's job. For the Indium paste, I would set a ramp rate of 100 to 200 (or 120 to 210).. somewhwere in that range should provi
Electronics Forum | Wed Nov 03 14:11:18 EST 2004 | russ
Sam, are you asking or telling us these things? russ
Electronics Forum | Thu Nov 30 17:01:32 EST 2023 | kojotssss
Ramp to spike. The same as (ramp to peake)
Electronics Forum | Mon Feb 20 15:45:03 EST 2006 | campos
thats the point: paste SMQ230 indium suggest a ramp between 0.5 a 1.0 degree,,but what ramp?? from 50 to 217 ,, 100 to 217,,,any idea?? i m using a ramp with .8 degree considering 50 a 217,,is teha correct????....thanks.
Electronics Forum | Fri Sep 14 09:34:17 EDT 2007 | russ
you using a ramp soak spike or ramp to spike profile? you may be burning out your flux in preheat if you ramp to fast or for too long, most pastes have 2 activation points for their flux one at low temp and one at higher temp. Try a ramp to peak pr
Electronics Forum | Thu Jan 29 18:01:20 EST 2004 | davef
Rethinking to Ramp / Soak: Yano, staying with ramp might not be all that bad after all, just decrease the ramp / slow-down the conveyor.
Electronics Forum | Tue Dec 28 09:31:45 EST 2004 | davef
The ramp rate of the temperature of your solder is more important than the ramp rate of the temperature of the plastic case of your BGA.
Electronics Forum | Fri Sep 08 11:29:40 EDT 2006 | GPP
James, What type of profile are you using. Ramp-to-Spike, Ramp-Short Soak-Spike, or Long-Low Spike? I had a similar problem in a past life - random skews on chip components - and got rid of it by converting to Ramp-to-Spike (the old profile was R
Electronics Forum | Tue Nov 02 05:00:28 EST 2004 | jysam
we are using solder paste WS609 and OM5100.Relow oven: forced convection type. For WS609 and OM5100, straight ramp up profile is suitable for low to medium thermal mass assemblies and preheating may be required for high thermal mass assemblies. How
