Hi Guy's....
Was thinkng about i more this moning..in the shower actually...sometimes think I do my best work there!. So far I'm looking at stuff like integrating the DFM study to show thing's that are going to present production / process issues e.g. shadowing, short's etc..some will be subjective but I think there has to be a ranking method of some sort. I've then got to look into a pure PPM calculation for potential failure then the machine capability need's to be understood and used as a multiplier I would suggest. Another big one would be the raw card and the potential that has for thing's like bow, twist sagging and so forth..not sure how this can be figured into the equations.
there are a lot of thing's but here must be a way of generating a model that can at least give you a more accurate expected yeild than purely going on inductry averages and so forth...
come on guy's must be someone out there awake...
John
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