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:
Mar. 08, 2005
Filed:
Sep. 17, 2001
Applicant:
Shinobu Shigeta, Tateyama, JP;
Inventor:
Shinobu Shigeta, Tateyama, JP;
Assignee:
Nippon Foundry Inc., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R031/02 ;
U.S. Cl.
CPC ...
Abstract
A mark forming apparatus including a guide needle for forming a mark, a positioning mechanism, a solution supply device, and a heating unit is disclosed. The positioning mechanism is used for positioning the guide needle above a fault location of a semiconductor device. The solution supply device supplies a solution containing a coloring agent and a volatile solvent to the fault location until it touches a tip of the guide needle. The heating unit evaporates the volatile solvent to form a mark consisting of the coloring agent surrounding the fault location.