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September 2000

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Subject:
From:
Guy Ramsey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 21 Sep 2000 14:16:54 -0400
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Apples and Oranges. 500 dppm is process control. 2.5 AQL is sorting.

 Guy Ramsey
American Competitiveness Institute
Senior Lab Technician / Instructor
610 362-1200 ext 107


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Marti Tully
Sent: Monday, September 18, 2000 8:06 PM
To: [log in to unmask]
Subject: [TN] FW: Sampling Plans


> > Subject:      Sampling Plans
> >
> > I have a customer who insists that the AQL sampling plans in IPC 6012
are
> not sufficient to guarantee his desired dppm and he is right.   His
product
> is class 2 and we, in general, follow a 2.5 AQL in final inspection for
> external defects.   This customer wants a dppm of 500.  I know of no cost
> effective sampling plan that can guarantee this.  Only maintaining
rigorous
> process control can meet this requirement.
> >
> > I, however, promised to survey the industry for their thoughts ... here
I
> am ... comments?
> >
> >
> > Marti Tully, Quality Manager
> > Sanmina Phoenix
> > Office 602-824-8497
> > Cell 602-549-4535
> >

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