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:
Oct. 10, 1995
Filed:
Nov. 08, 1993
Applicant:
Inventor:
Makoto Shibata, Hiratsuka, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
324514 ; 324765 ; 324557 ;
Abstract
A method for detecting an insulative condition of a protection layer of a substrate includes the steps of contacting an area of a surface of a protection layer to be detected with a liquid, and checking the electrical conduction between the liquid and a detection electrode which is electrically connected with an electrical element at an area on which the protection layer is not provided.