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April 1999

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Subject:
From:
Albert Mok <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 12 Apr 1999 16:29:32 +0800
Content-Type:
text/plain
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text/plain (51 lines)
Dear ryu,

We are currently using "golden sample" to compare the gold plating product.
 You can define your own inspection environment when lighting condition and
inspector  are concerned.

I completely agree with you that the result is very subjective and very
much based on the input of each customer.

______________________________________________________________

At 10:59 PM 1999/4/11 -0700, ryu wrote:
>Can anyone define what is discoloration in IPC 600 regarding fab's
>goldfingers?  When I see a goldfinger that is not as shiny as the other
>ones, should I consider then that the finger is a defective finger?
>Personally I think the requirement is very subjective and hard to
>define.   Is there any inspection tool people can use to determine
>whether or not a discolored finger is acceptable/rejectable?
>My last question to the group - is discoloration a functional defect or
>cosmetic defect?
>Thank you for reading my question.
>
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