Before we go down the road...What are the observations are defining the unit as failing?
Paul
Paul Edwards
Process/Quality Engineering
Surface Art Engineering
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Louis Hart
Sent: Tuesday, February 08, 2011 2:22 PM
To: [log in to unmask]
Subject: [TN] assembly 'forensics'
Technetters, A fellow engineer is working on behalf of an manufacturer who incorporates a touch screen, flat screen display (thin film transistors) in its product.
Some of these displays, too many from the manufacturer's perspective, are failing in operation. The display uses 3 printed circuit assemblies: a power supply, decoder of the information from the touch screen, and an interface to an external computer. No design information is available to the manufacturer.
Would anyone suggest a person or organization who could study these assemblies, in the absence of design information, and propose a failure mechanism(s)?
I have speculated that thermal imaging could help by comparing failed and surviving assemblies. Foresite's specialty may not pertain to what may be simple, low-speed assemblies, but I am prepared to learn otherwise.
Thanks for any advice or comments.
Louis Hart
Compunetics
Monroeville, PA
USA
[log in to unmask]<mailto:[log in to unmask]>
412-858-1272
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