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:
Aug. 17, 2021
Filed:
Jun. 28, 2019
Applicant:
Teradyne, Inc., North Reading, MA (US);
Inventor:
Marc Spehlmann, North Reading, MA (US);
Assignee:
Teradyne, Inc., North Reading, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/50 (2020.01);
U.S. Cl.
CPC ...
G01R 31/50 (2020.01);
Abstract
The systems determine the parasitic capacitance of a signal path. That parasitic capacitance is then used to determine a leakage characteristic of the signal path, such as leakage current or leakage resistance. The capability of ATE channels to force current accurately, and to measure time intervals at prescribed voltages, can be used to multiply the accuracy of the force current function. Using these resources, small leakage currents—for example, on the order of 10 nA or less—can be measured.