Electronics Forum | Thu Apr 07 10:39:36 EDT 2005 | geb
I have a BTU International VIP98 reflow oven, running WINCON Version 2.00C on Windows 98. The light tower only lights green when the oven reaches temperature, and the other colours never light up. Do you know how to set the other colour lights to tu
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 | Mon Aug 13 21:04:15 EDT 2001 | davef
What??? You don�t have enough things to monitor? The origin of some profiles is mysterious. It�s probably good to try to understand such mysteries. Certainly, the important determinants in the design of your reflow profile are: * Paste you�ve sel
Electronics Forum | Mon Jul 19 21:25:28 EDT 2004 | davef
It seems like the flux is burning-up before the metal begins to flow on this slightly odd component. Alpha talks about alternate reflow recipes for WS609, as follows: * A straight ramp up profile is preferred for reflowing low to medium thermal mass
Electronics Forum | Mon Dec 27 18:44:14 EST 2004 | Mark
I am testing some BGA's (PBGA 30mm x 30mm) to evaluate the maximum ramp rate we can achieve in our reflow oven. Temperature is being measured at the body(top) of the component / not leads. After several trials (with various oven settings), the high
Electronics Forum | Wed Feb 07 21:54:45 EST 2007 | davef
That's a peculiar temperature range for your cycling. What are your ramps and dwells?
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 | Mon Sep 20 00:47:35 EDT 2010 | emmanueldavid
AL, Let's always remember that any Temperature controlled environment has to draw higher Time to bring the Temperature down than that is drawing for Temperature Ramp up. The best way is to keep Room Temperature in as low as possible level & open t
Electronics Forum | Sat Nov 05 07:17:25 EST 2005 | JeffP
That was the case with your oven but it is not so with ours. First, the distance from walls of the inner chamber to the product differs from one oven to another. Second, the dissipation of heat from metal heats up the air in the oven which in turn h
Electronics Forum | Tue Jan 30 01:06:51 EST 2018 | dgassier81
Hi, In our shop we've always baked out PCBs and moisture sensitive parts prior to electronic assembly using a gentle ramp rate of 2 degC/minutes going hot (93degC) and same ramp rate going cold (back to room temp). We're trying to outsource that pro
