The question is what is an acceptable DPMO, defects per million opportunities. Under 1000 DPMO is Good Under 500 DPMO is great. Lets say that a board has 2000 opportunities and 2 defects. Divide 1000,000 by 2000 and multiply by 2 which is 500X2= 1000 DPMO. Find out the DPMO that is currently being created and work on reducing it by working with the high hitters. The DPMO may be computed on the boards of a program that is run during a whole month worth of production or all the programs lumped together.
Regards,
Ramon
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Blomberg, Rainer (FL51)
Sent: Monday, December 05, 2005 2:29 PM
To: [log in to unmask]
Subject: Re: [TN] Nonwetting Pad numbers
Sometimes the real meaning gets lost in the translation...this is a classic example.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard
Sent: Monday, December 05, 2005 2:03 PM
To: [log in to unmask]
Subject: Re: [TN] Nonwetting Pad numbers
100% of nonwetted or insufficient pads will be touched up, I hope.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Baski Devre
Sent: Monday, December 05, 2005 11:05 AM
To: [log in to unmask]
Subject: Re: [TN] Nonwetting Pad numbers
I may ask wrongly so please let me ask again. What is the ppm of nonwetted or insufficient soldered pads numbers which will be touched up after assembly of the PCBs
John Burke yazmış:
>That would be zero
>john
>Sent with Wireless Sync from Verizon Wireless
>
>---- Original Message ----
>From: "Baski Devre" <[log in to unmask]>
>Date: 12/5/05 8:42 am
>To: "[log in to unmask]" <[log in to unmask]>
>Subj: [TN] Nonwetting Pad numbers
>Dear Technetters
>What are the acceptibility criteria of nonwetting PCB for a PCB which
>has about thousand pads both smd pads and through hole pads.holes .
>Or, is there any standard which can state that after assembly how many
>pads are tolerant to not being soldered per 1,000 pads.
>Best Regards
>
>
>
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