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January 2003

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Subject:
Re: Fine Pitch Component Usage After Initial Placement Error s
From:
Dave Chapman <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 3 Jan 2003 11:44:49 -0600
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Excellent suggestion.
Dave

-----Original Message-----
From: Dan R. Johnson [mailto:[log in to unmask]]
Sent: Friday, January 03, 2003 10:47 AM
To: [log in to unmask]
Subject: Re: [TN] Fine Pitch Component Usage After Initial Placement
Errors


Good Morning Leland,
Sounds like you are caught in the trap of trying to cure symptoms rather
than the disease.

>Are there any better ways to accomplish this goal?

If you have decided to live with the scattered/missing descretes problem I
would suggest that you place the fine pitch (high $) components as a
secondary operation and only on "good" assemblies (i.e. add a visual
inspection between placing descretes and high$ parts). This is still a
Band-Aid, but could keep production running until you resolve your other
problems.

Hope this helps,
Dan

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