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.

Date of Patent:
Mar. 06, 2007

Filed:

Jul. 07, 2005
Applicants:

Tae-min Eom, Seoul, KR;

Chung-sam Jun, Suwon-si, KR;

Yu-sin Yang, Seoul, KR;

Yun-jung Jee, Yongin-si, KR;

Inventors:

Tae-Min Eom, Seoul, KR;

Chung-Sam Jun, Suwon-si, KR;

Yu-Sin Yang, Seoul, KR;

Yun-Jung Jee, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 21/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of inspecting a leakage current of a dielectric layer on a substrate including a cell array region having a plurality of cell blocks including a patterned structure, the dielectric layer formed on the patterned structure, and a peripheral circuit region includes depositing a corona ion charge on a cell block selected from the plurality of cell blocks and measuring a variance of a surface voltage caused by a leakage current through the dielectric layer on the selected cell block. The variance of the surface voltage is compared with reference data to determine a leakage current characteristic of the dielectric layer.


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