[PCB_FORUM] Re: high speed board material.

Thanks to all, FR4 it is. 
"Jonathan Friedman" <jf@xxxxxxxxxxx> wrote:

>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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