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:
Oct. 03, 2006
Filed:
Oct. 27, 2005
Brent A. Holcombe, Colorado Springs, CO (US);
Brock J. Lameres, Colorado Springs, CO (US);
Donald M. Logelin, Colorado Springs, CO (US);
Brent A. Holcombe, Colorado Springs, CO (US);
Brock J. LaMeres, Colorado Springs, CO (US);
Donald M. Logelin, Colorado Springs, CO (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
Uncontrolled characteristic impedance along a spring biased pin probe assembly is avoided by providing a stepped shelf of ground plane that extends outward along the pin and toward the target signal. The length of outward extension is chosen such that even when there is only (or at least) an expected minimum amount of compression of the spring while producing and maintaining contact, the entire exposed portion of the pin is over the shelf, whose depth of step has been selected to produce a selected Zfor the exposed pin that matches Zfor existing transmission lines already within the probe assembly. The spring biased pin may be a resistor tip spring pin that includes a small resistor in its tip.