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TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
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Mon, 6 Apr 2020 14:15:17 +0000
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That's the dilemma!   I was just handed a Rigid-Flex board and ask to conduct a destructive analysis of the sample with no documentation.

I have limited experience with Rigid-Flex Board construction....



Victor,



-----Original Message-----

From: TechNet <[log in to unmask]> On Behalf Of Bhanu Sood

Sent: Monday, April 6, 2020 8:31 AM

To: [log in to unmask]

Subject: Re: [TN] Rigid-Flex, Transition Zone, Strain Relief Fillet,





[EXTERNAL EMAIL] 



Can you describe the application, is it dynamic flex, number of expected cycles, out-gassing requirements, tolerance for FOD etc?

Perhaps, your specific design may not need a strain relief fillet.



On Mon, Apr 6, 2020 at 9:00 AM <[log in to unmask]> wrote:



> Fellow TechNetters:

>

>    I did not receive responses to my initial inquiry.   Therefore, I will

> post again.   Perhaps everyone is staying home during this COVID-19 alert

> time.

>

> Ref:  IPC-2223D  5.2.9   Fig. 5-20

>

>    How much material voiding/out gassing is permitted on the strain 

> relief material, etc, epoxy, acrylic, RTV silicone, polysulfides.?

> Will voiding weaken the fillet?

>

> Victor,

>

> From: Hernandez, Victor G <[log in to unmask]>

> Sent: Wednesday, April 1, 2020 10:30 AM

> To: TechNet E-Mail Forum

> Cc: Hernandez, Victor G

> Subject: Rigid-Flex, Transition Zone, Strain Relief Fillet,

>

> Fellow TechNetters:

>

> Ref:  IPC-2223D  5.2.9   Fig. 5-20

>

>    How much material voiding/out gassing is permitted on the strain 

> relief material, etc, epoxy, acrylic, RTV silicone, polysulfides.?

> Will voiding weaken the fillet?

>

> Victor,

>





--

Bhanu Sood

Tel: (202) 468-8449


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