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:
Jan. 06, 2004

Filed:

Jul. 10, 2002
Applicant:
Inventor:

Hideki Naruoka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 3/126 ;
U.S. Cl.
CPC ...
H01L 3/126 ;
Abstract

In order to obtain a method of evaluating a crystal defect which allows crystal defects generated in a thin film SOI layer or a thin film surface layer to be evaluated using an in-line test, an SOI layer has silicide regions formed in the evaluation region consequently upon generation of crystal defects generated in the SOI layer . The silicide regions are regions silicided as a result of the crystal defects having gettered metals which are contained in a transition layer and diffuse into the SOI layer upon a heat treatment. A laser beam is irradiated to the evaluation region via the transition layer and the silicon oxide film . By monitoring a current flowing between first and second probes using an ampere meter while scanning the evaluation region with a laser beam, it is possible to evaluate the crystal defects in the evaluation region.


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