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February 1997

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From:
<[log in to unmask]> (Vernon Pursley)
Date:
Wed, 26 Feb 97 14:56:24 PST
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Hi Mike,

This came across IPC Technet.

At lease we are CATCHING the high resistant shorts before shipping them to the 
customer!

Vern

[log in to unmask] Wrote:
| 
|  Good morning Techneters,
|      
|  We have been finding defective PWBs from time to time.  
| The defect 
|  rate is not alarming all the time, however it seems like 
| there is a 
|  small number of defective PWBs are coming in (steadily) 
| with various 
|  defects, such as, open or high resistant via, open trace, 
| poor 
|  solderability, etc.
|      
|  My question to you is, "Is there some percentage that is 
| typical for 
|  escaping defects out of a fab house?"  I know ideally it 
| should be 
|  zero.  What is your experience?
|      
|  Thanks in advance,
|  Paresh Patel
|  Mfg. Engr.
|  Oneac Corp.
|  847-816-6000 x-704.
| 
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| 


Vern Pursley, Applications Engineering
Merix Corporation
Phone: 503-992-4404;FAX 503-359-2651;
[log in to unmask]

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