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. 08, 1996
Filed:
Mar. 31, 1995
Abdelkrim Tatah, Arlington, MA (US);
Panasonic Technologies, Princeton, NJ (US);
Abstract
Apparatus and method for measuring the resistivity of a material without contacting or damaging the material, using a current and voltage meter connected to a first probe and a second probe. The probes are placed adjacent the material and in spaced relation to the material, a first ultraviolet laser beam having femtosecond pulses is focused onto the first probe such that the first probe emits electrons toward the material, and a second ultraviolet laser beam having femtosecond pulses is focused onto the material such that the material emits electrons toward the second probe. A voltage and a closed current loop are thus created. The current and voltage meter measures the current and voltage to obtain current and voltage readings, and the current and voltage readings are used to determine the resistivity of the material.