With higher frequencies and reflection, exact location within layers could be determined.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Igoshev, Vladimir
Sent: Friday, January 02, 2009 8:21 AM
To: [log in to unmask]
Subject: Re: [TN] PWB Delamination Detection by C-SAM
Unless it's so thick that no signal will go through it should work. That is why a low frequency trancducer is used and that is why it should be a through mode - it won't tell where (which layers) but the location (X:Y)
Vladimir
----- Original Message -----
From: Bev Christian <[log in to unmask]>
To: TechNet E-Mail Forum <[log in to unmask]>; Igoshev, Vladimir
Sent: Fri Jan 02 09:14:24 2009
Subject: RE: [TN] PWB Delamination Detection by C-SAM
But won't it depend on how thick the board is - how many layers? If it
is a really thick one and the delam is in the middle...
Bev
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Igoshev, Vladimir
Sent: Friday, January 02, 2009 9:13 AM
To: [log in to unmask]
Subject: Re: [TN] PWB Delamination Detection by C-SAM
Hi Victor,
Through scan with a low frequency (30 or 15) transducer should be able
to do it.
Regards,
Vladimir
----- Original Message -----
From: TechNet <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Sent: Fri Jan 02 09:09:57 2009
Subject: [TN] PWB Delamination Detection by C-SAM
Fellow TechNetters:
Searching for supporting information on non destructive analysis with
C-SAM to confirm raw board delamination.
Victor,
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