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process defects software

Views: 1718

#53935

process defects software | 7 March, 2008

Hi,

i try to collect data for solder wave process defects, but I dont know how I must calculate these data.Can anyone help me - may be there nave some free software for this.I want to calculate how many ppm is our deffects.And, how is acceptable range of defects for SW process. Thanks

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#53938

process defects software | 7 March, 2008

Not sure if you need help with the calculations or the application, so from the beginning:

d=defective parts, p=number of parts, dpm=defects per million parts

In a nutshell,

d/p=dpm/1000000, so

dpm=d/p*1000000

We use dpmo (defects per million opportunities). The number of parts is included, but it also includes lead counts, part orientation, and whatever other criteria you wish to include. We are monitoring our stuff process at the same time.

There are a couple of IPC standards that can help you apply these methods. Search "dpmo" in the archives for a LOT more information.

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#53944

process defects software | 10 March, 2008

I'm looking for the dance video our QC Dept. uses each time they find a defect. It's very catchy and trendy.

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#53952

process defects software | 10 March, 2008

I'll bet our QC department produced that dance video! Combine that with some buzzword bingo and you have a real party! Wait a sec.... Trendy, Trend... uh.. BINGO!

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#53953

process defects software | 10 March, 2008

Or Fox's next big hit game show.

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#53971

process defects software | 11 March, 2008

Here's a cheer I found on the ASQC Website.

"Quality Cheer" by QC McSnigglets

Who found it? WE DID!

Who made it? THEY did.

D - E - F - E - C - T - S

Who found it? WE DID!

Who made it? THEY did.

D - E - F - E - C - T - S

Du-du-du-du- DE-FECTS oot oot Du-du-du-du- DE-FECTS oot oot Du-du-du-du- DE-FECTS oot oot

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