|
[si-list]
||
[Date Prev]
[11-2003 Date Index]
[Date Next]
||
[Thread Prev]
[11-2003 Thread Index]
[Thread Next]
[SI-LIST] Embedded uStrip - double check me
- From: "bdempsey85" <bdempsey85@xxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Wed, 5 Nov 2003 18:40:23 -0600
I would like a double check on my coated uStrip impedance calculations.
I am getting feedback from my PCB fabricator that my numbers are >10%
off.
Here are the parameters:
5 mil wide trace, 0.5 foil with add'l 1oz plating (approx 2.1 mils
thickness)
4 mil trace to plane, Er ~ 4.3
LPI soldermask ~ 0.8 mils thick
I compute 51 ohms...how about you?
Thanks,
Bill
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List archives are viewable at:
http://www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
|
|
