The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2002
Filed:
Feb. 22, 2000
John K. Arledge, Fort Lauderdale, FL (US);
Jeffrey A. Underwood, Sunrise, FL (US);
Joaquin Barreto, Coral Springs, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An electrostatic discharge protection device for a high-density printed circuit board consists of a layered structure starting at the bottom layer with a ground conductor. A dielectric layer covers the ground conductor to electrically isolate it from a circuit trace that is on top of the dielectric layer. A via is formed in the dielectric layer such that a portion of the ground conductor is exposed, and the via is strategically located such that the edge of the via is tangent to an edge portion of the circuit trace. The via forms a spark gap between the edge portion of the circuit trace and the underlying ground conductor, using air as the dielectric medium.