[PCB_FORUM] Re: high speed board material.

I've done 2.5 Gb/S on Fr4 many times.

Richard Weinberg
Agere Systems
207-846-4539

-----Original Message-----
From: sjcharles@xxxxxxx [mailto:sjcharles@xxxxxxx] 
Sent: Friday, February 18, 2005 11:37 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: high speed board material.

speed 1 ghz, 8 ly, 1/2 oz, rate edge approx 9n, 5/5 width and spacing
maybe 4 for necking. two or threes pair controlled Z. If Fr4 will do the
job then i that would be fine.

thanks
> 
> From: "Schwartz, Jerome" <jschwa01@xxxxxxxxxx>
> Date: 2005/02/18 Fri AM 10:49:28 EST
> To: "'icu-pcb-forum@xxxxxxxxxxxxx'" <icu-pcb-forum@xxxxxxxxxxxxx>
> Subject: [PCB_FORUM] Re: high speed board material.
> 
> Sam,
> 
>       There are many variables associated with picking a material:
> 
> 1.  Dielectric Constant.
> 2.  Frequency.
> 3.  Edge rate.
> 4.  Layer count.
> 5.  Stackup.
> 6.  Copper weight.
> 7.  Impedance. Microstrip or stripline high speed signals.
> 8.  Line width.
> 9.  Rework.
> 10. Thermal.
> 
>       Do you know some of these? If so, I can suggest materials.
> 
>  Regards,
>       Jerry Schwartz, CID+
>       IPC Advanced Certified Designer
>      "May The Schwartz Be With You."
> 
> Designer 3
> Harris Corporation GCSD              Voice (321)-727-5474
> P.O. Box 37, MS 1/3232               Pager (321)-690-9797
> Melbourne, FL 32902-0037           
> mailto:Jerome.Schwartz@xxxxxxxxxx           
> http://www.harris.com
> 
> 
> 
> 
> 
> -----Original Message-----
> From: sjcharles@xxxxxxx [mailto:sjcharles@xxxxxxx] 
> Sent: Friday, February 18, 2005 10:42 AM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] high speed board material.
> 
> 
> Group:
> We will be doing a PCI card which will have high speed digital
signals. Which
> type of board material (fr4,rogers...) would be ideal?
> 
> TIA 
> Sam
>  
> 
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