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:
May. 10, 2011
Filed:
May. 24, 2007
Applicants:
David W. Newton, Tualatin, OR (US);
Kenneth V. Almonte, Portland, OR (US);
Inventors:
David W. Newton, Tualatin, OR (US);
Kenneth V. Almonte, Portland, OR (US);
Assignee:
Electro Scientific Industries, Inc., Portland, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method for measuring the leakage current of capacitive components. A switch that grounds a terminal of a component being tested is closed while the component is charged to a desired test voltage. When this charging is complete, the switch opens so that the diode terminal is at the same potential as the input amplifier's virtual ground. An accurate and fast measurement of the leakage current of the component can be measured.