Chuck,
Yes, It does appear to be an FPC Product, Rigid Flex assembly. The cross section revealed an unusual layer stack with different shades in the laminate. Some with glass bundles and others without glass. The large voids appear to be concentrated on the layers with non-glass laminate regions. Perhaps a polyimide layer. I don't have the vendor stack up information, thickness nor material construction.
Victor,
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Monday, August 17, 2015 11:28 AM
To: TechNet E-Mail Forum; Hernandez, Victor G
Subject: Re: Re: [TN] Pros & Cons om laminate VOIDS
And,
Is this a flex circuit? What is the construction?
I don't see any glass fiber and the layers appear to be connected by an adhesive.
I think more information is required. It does appear to be a long way from the patients heart.
Chuck
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Charles W. Brummer | 3M Manufacturing Engineer
3M Electronic Solutions Division
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From: "Victor Hernandez" <[log in to unmask]<mailto:[log in to unmask]>>
To: <[log in to unmask]<mailto:[log in to unmask]>>
Date: 08/17/2015 04:19 AM
Subject: [EXTERNAL] Re: [TN] Pros & Cons om laminate VOIDS
Sent by: TechNet <[log in to unmask]<mailto:[log in to unmask]>>
________________________________
How can on call it an anomaly/defect if one is unable to discern the anomaly/defect.
Victor,
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer
Sent: Friday, August 14, 2015 6:05 PM
To: [log in to unmask]<mailto:[log in to unmask]>
Subject: Re: [TN] Pros & Cons om laminate VOIDS
With this size range, I would be concerned. Nice sections!
Wayne
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Friday, August 14, 2015 5:26 PM
To: [log in to unmask]<mailto:[log in to unmask]>
Subject: Re: [TN] Pros & Cons om laminate VOIDS
Hi Victor,
Here you go:
http://stevezeva.homestead.com/Laminate_voids.pdf
Steve
On Fri, Aug 14, 2015 at 12:23 PM, Victor Hernandez < [log in to unmask]<mailto:[log in to unmask]>> wrote:
> Fellow TechNetters:
>
> What are the Pros N Cons with LF laminate voids. Want to hear what
> the community thinks. I will upload photos to Steve Gregory shortly.
>
> Victor,
>
> Steve Gregory
>
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