Method and system for ESD protection of balanced circuit board lines
First Claim
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1. A printed wiring board (PWB), comprising:
- at least one pair of balanced signal lines defining a pitch; and
at least one array of electrostatic discharge (ESD) devices electrically connecting each of the balanced signal lines to ground, the array conforming to the pitch, wherein the lateral distance between at least one of;
successive ESD devices in the array, or successive ESD device traces, equals the pitch.
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Abstract
An array of electrostatic discharge (ESD) devices conforms to the pitch defined by balanced signal lines on a printed wiring board (PWB) so that the array does not unduly affect the design impedance of the balanced lines.
13 Citations
17 Claims
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1. A printed wiring board (PWB), comprising:
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at least one pair of balanced signal lines defining a pitch; and at least one array of electrostatic discharge (ESD) devices electrically connecting each of the balanced signal lines to ground, the array conforming to the pitch, wherein the lateral distance between at least one of;
successive ESD devices in the array, or successive ESD device traces, equals the pitch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrostatic discharge (ESD) device apparatus for a printed wiring board (PWB) having at least one pair of balanced signal lines, comprising:
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plural ESD devices, one for each line in a pair of related balanced signal lines sought to be protected; and plural traces, each trace respectively connected an ESD device, the balanced signal lines defining a pitch and the traces defining a pitch substantially equal to the pitch defined by the balanced signal lines. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification