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:
Jun. 19, 2001
Filed:
Oct. 14, 1999
Gedaliahoo Krieger, Rehovot, IL;
Yongbum Cuevas, Los Gatos, CA (US);
Qualitau, Inc., Sunnyvale, CA (US);
Abstract
A test circuit for applying bipolar current pulse to first and second terminals of device under test (DUT) includes a first DC current source and a first switch having a first common terminal, a second DC current source and a second switch having a second common terminal, and means for connecting a device under test between the first and second common terminals. A timing generator selectively controls conduction of the first switch and the second switch whereby when the first switch is closed the current from the second DC current source flows through the device under test and the first switch to a circuit ground, and when the second switch is closed the current from the first DC current course flows through the device under test and the second switch to a circuit ground. Pulse repetition rate and duty cycle of the current pulses are controlled by the control voltage pulses from the timing generator.