Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PIN-HOLE INSPECTION METHOD
Document Type and Number:
Japanese Patent JPH0534309
Kind Code:
A
Abstract:

PURPOSE: To obtain a pin-hole inspection method which enables a pin hole to be found accurately and constantly at a low voltage regardless of the shape of an object to be inspected.

CONSTITUTION: In the title method, an object 16 to be inspected is placed between at least two opposing electrodes 2 and 4, a voltage is applied between the electrodes 2 and 4, and a pin hole within the object 16 to be inspected is found according to whether current flows or not. A conduction inspection is performed while flexible conductive films 12 and 13 are interposed between at least one of the electrodes 2 and 4 and the object 16 to be inspected.


Inventors:
YURA HIROSHI
Application Number:
JP21157091A
Publication Date:
February 09, 1993
Filing Date:
July 29, 1991
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
G01N27/20; (IPC1-7): G01N27/20
Attorney, Agent or Firm:
Kuniaki Yokokawa