Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Circuit board voltage plane impedance matching










Image Number 12 for United States Patent #6150895.

A circuit board having a transition region at its perimeter. The transition region provides a deliberate increase in impedance between the voltage and ground plane from the interior side of the transition region where the board impedance is approximately that of the board impedance at an interior region of the circuit board to the edge side of the transition region where the impedance level approximates or is slightly less than that of surrounding air. In one example, the voltage plane in the transition region has a geometric configuration that provides a decrease in plane material (such as a hole, stripe, or triangle pattern) from the interior side to the edge side of the transition region. With other examples, the distance between the voltage and ground plane increases from the interior side to the edge side of the transition region.








 
 
  Recently Added Patents
Resist underlayer film forming composition for lithography, containing aromatic fused ring-containing resin
Estimating optical characteristics of a camera component using sharpness sweep data
Signal processing apparatus and methods
Visual indicator of online backup
Analysis of stress impact on transistor performance
Methods and systems for enabling community-tested security features for legacy applications
Distortion compensation device, distortion compensation method, and radio transmitter
  Randomly Featured Patents
Structure for mounting sensing devices for measuring a vehicle load
HAN TEAN (xm-46) mixing gas generator propellant tank pressurizer for launch vehicles and spacecraft
Shoulder strap harness lifting device
Unit-type copying machine
Overhead luggage container, particularly for airplanes
Lithium soap grease additive
Electric motor and the housing thereof
Extrusion apparatus having a nozzle-headed drum
Apparatus relating to the reconstruction of semiconductor wafers for wafer-level processing
Combustion stabilization systems