[PCB_FORUM] Re: high speed board material.
- From: "Jonathan Friedman" <jf@xxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Fri, 18 Feb 2005 08:44:07 -0800
Yeah, I agree with the group. I think FR4 is fine... but I haven't gone up
as high as Richard.
Jonathan Friedman, GSR
Networked Embedded Systems Laboratory (NESL)
University of California, Los Angeles (UCLA)
-----Original Message-----
From: Weinberg, Richard (Richard) [mailto:rweinberg@xxxxxxxxx]
Sent: Friday, February 18, 2005 8:39 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [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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