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Patent Searching and Data


Title:
CURRENT MEASUREMENT APPARATUS INCLUDING CHARGE/DISCHARGE MEANS AND CURRENT MEASUREMENT METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/216954
Kind Code:
A1
Abstract:
The present invention relates to a current measurement apparatus for measuring a current related to an inspection of a device under test (DUT), which is a subject for current measurement, a manufacturing method therefor, and a method for measuring a value of a current related to an inspection of a DUT by using the current measurement apparatus. Specifically, a current measurement apparatus according to the present invention comprises: a capacitor connected in parallel to a signal terminal of a DUT, which is a subject for current measurement; a test pattern generation apparatus for generating a test pattern so as to operate the DUC; and a measurement module connected to one end of the capacitor connected to the signal terminal of the DUT. Also, the measurement module comprises: an input/output (I/O) buffer for increasing or reducing an amount of charges of the capacitor through charging or discharging of the capacitor and outputting a signal corresponding to an output logic value according to a voltage of the one end of the capacitor; a time measurer for measuring an arrival time which it takes for the voltage of the one end of the capacitor to reach a predetermined second voltage from a predetermined first voltage; and a controller for controlling the I/O buffer and the time measurer to measure the arrival time and controlling such that a value of a current related to an inspection of a DUT is measured using the measured arrival time.

Inventors:
KIM BYUNG KYU (KR)
KIM BYEONG YUN (KR)
Application Number:
PCT/KR2018/005668
Publication Date:
November 29, 2018
Filing Date:
May 17, 2018
Export Citation:
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Assignee:
KIM BYUNG KYU (KR)
International Classes:
G01R19/25; G01R31/317; G01R31/3183
Foreign References:
KR20000047865A2000-07-25
JP2010190768A2010-09-02
JP2003172761A2003-06-20
KR20110034580A2011-04-05
JP2003167025A2003-06-13
Attorney, Agent or Firm:
DARAE IP FIRM (KR)
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