Xilinx Virtex-4 ML461 User Manual page 36

Chapter 3: Hardware Description
Table 3-15: ML461 Revision B PCB Controlled Impedance (Continued)
Layer Name
32 GND5
33
34 PWR4
35
36 Bottom
37
36
Type Usage
Metal Solid Plane
Dielectric Substrate
Metal Solid Plane
Dielectric Substrate
Metal Signal
Dielectric Solder Mask
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Thickness
Er
(mils)
1.338 <Auto>
4 4.3
1.338 <Auto>
4 4.3
1.338 <Auto>
1.3 3.3
Virtex-4 ML461 Development Board User Guide
UG079 (v1.1) September 5, 2007
R
Test
Width Z0Ω
(mils)
5 54.3