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March 2000

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Subject:
Re: Information about CEM and paper phenolic PCB
From:
Geoff Layhe <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 10 Mar 2000 08:56:17 -0000
Content-Type:
text/plain
Parts/Attachments:
text/plain (57 lines) 
Ken,
IPC 4101 describes the properties of a whole range of laminates.
FR4, CEM1, CEM3 etc are all NEMA classifications try www.nema.org for info.
Hope this helps

Geoff Layhe
www.lamar-uk.co.uk

> ----------
> From:         Ken Fong[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;[log in to unmask]
> Sent:         10 March 2000 03:30
> To:   [log in to unmask]
> Subject:      [TN] Information about CEM and paper phenolic PCB
>
>      Technetters,
>      Could anyone tell me where description of the properties of CEM1,
> CEM3
>      and FR1, FR2..(Paper based) PCB materials can be found? Does any IPC
>      std describing such things. I see many IPC stds describing FR4 (glass
>      epoxy) materials only, why?
>
>      Thanks.
>
>      KenF, Mar 10, 00
>
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