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September 2000

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Subject:
Re: Non-destructive Thru-hole Inspection
From:
"Dieselberg, Ron" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 5 Sep 2000 13:57:38 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (49 lines) 
Dave, if you cannot find anything else, the old ball bearing taped to the
bottom-side of the hole trick might help in the short term. ie. tape a ball
bearing to one side of the hole and illuminate and look into the opposite
side with a microscope. You will get a fish eye view of the entire inside of
the hole. It's what we used in the olden days.
Ron Dieselberg
BAE SYSTEMS
Cincinnati Electronics Corp.

-----Original Message-----
From: Dave Kell [mailto:[log in to unmask]]
Sent: Tuesday, September 05, 2000 12:50
To: [log in to unmask]
Subject: [TN] Non-destructive Thru-hole Inspection


We are looking for a way to look inside plated through holes to check the
electroless plated deposit for voids prior to electrolytic. Possibly a fiber
optic video scope?

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