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:
Sep. 11, 2018
Filed:
Feb. 19, 2013
Shin-etsu Handotai Co., Ltd., Tokyo, JP;
Fumitaka Kume, Gunma, JP;
Hisatoshi Kashino, Gunma, JP;
SHIN-ETSU HANDOTAI CO., LTD., Tokyo, JP;
Abstract
Proposed are a C-V characteristic measurement system and a method of measuring C-V characteristics that allow for less change in resistivity with time in repeated measurement of a single crystal silicon wafer using a mercury electrode, as compared to those in the related arts. Measurement is conducted with use of a C-V characteristic measurement system including: a mercury probefor putting mercury as an electrode to contact with a single crystal silicon wafer; an LCR meterfor forming a depletion layer by supplying a high-frequency wave to the single crystal silicon wafer via the mercury probeto apply a reverse bias voltage to the single crystal silicon wafer while measuring a capacitance of the depletion layer; analysis software for calculating C-V characteristics based on the reverse bias voltage and the capacitance of the depletion layer; and a static electricity removing devicefor removing static electricity of the single crystal silicon wafer.