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May 2000

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Subject:
From:
Geoff Layhe <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 8 May 2000 09:01:49 +0100
Content-Type:
text/plain
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text/plain (59 lines)
The numbers refer to the style of glass cloth used, the number defines the
quantity of yarns in the warp & weft, the thickness of the cloth etc. You
will find more information at www.bgf.com. look under "fabric reference",
"properties", "printed circuit boards", "construction data".

Geof Layhe
www.lamar-uk.co.uk

> ----------
> From:         KK Chin[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;KK Chin
> Sent:         05 May 2000 19:06
> To:   [log in to unmask]
> Subject:      [TN] Prepreg numbering
>
> A PCB supplier recommended me to fine tune a  FR-4 multilayer lay-up to
> make use
> of certain popular prepreg material. He named the prepregs by numbers like
> 7628,
> 1652, 1080, etc. Are these numbers common acronym, or just from a specific
> manufacturer's catalog? How can I decipher these numbers?
>
> Thanks,
>
> K.K. Chin
> Artesyn Technologies,
> Fremont, CA
>
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