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
Compact ion accelerator source
Semiconductor memory device, method of controlling read preamble signal thereof, and data transmission method
Methods and apparatuses for configuring and operating graphics processing units
Nonvolatile semiconductor memory device and method for manufacturing the same
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Semiconductor device manufacturing method and device for same
Method and apparatus for verifiable generation of public keys
  Randomly Featured Patents
Electrical testing apparatus
Projection exposure apparatus and exposure method
Novel hydroxamic acid compounds, method for preparation thereof and medicaments containing such compounds
Electronic high-fidelity screenless conversion system
Fishing reel
Liquid crystal display device with matrix electrode structure
Process for producing a semiconductor memory device comprising mass-storage memory cells and shielded memory cells for storing reserved information
Method and system for metering mixed weight mail pieces at an increased average rate
Jig for mass soldering system
Selecting key frames from video frames