Good Morning TechNet!
     
     I would suggest contact KIC Thermal Profiling: 619-673-6050
     15950 Bernardo Center Drive Suite E San Diego CA 92127
     
     Their systems work on both wave and reflow. The "predictive" algorithm 
     they use isn't perfect but does a solid job of getting you within a 
     couple of tries of the optimum process settings. I have found that the 
     use of a "predictive" software tool is minimal - I only go to that 
     effort if the assembly has unique design features or there is a defect 
     trend problem. In practice, I compare the new assembly to my current 
     assembly profiles and develop the profile on the fly (about 99% of the 
     time). The time spent typically is no more that 45 minutes.
     
     
     Dave Hillman
     Rockwell Collins
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______________________________ Reply Separator _________________________________
Subject: ASSY reflow profile expert software.
Author:  [log in to unmask] at ccmgw1
Date:    6/18/96 7:39 AM


We are investigating the feasibility of a software tool to predict 
the reflow soldering profile. As input we want amount and type of 
components, print parameters (thickness, layers, area etc.). As output: 
conveyor speed, the different temperatures and convection % for our
hot air reflow machine.
     
Does anybody know tools that can accomplish this? If not, are you 
interested in the results or do you just want that bright and shiny 
solder joints (target condition class 3)?
     
     
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 Ivo de Rooij (off-line)           Manufacturing Process Engineer SMT/THT
     
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 Fokker Elmo BV                 Electric and Electronic Aerospace Systems       
     
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