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:
May. 07, 2002
Filed:
Feb. 01, 2001
Applicant:
Inventors:
Masashi Gotoh, Tokyo, JP;
Jitsuo Kanazawa, Tokyo, JP;
Koichiro Okazaki, Tokyo, JP;
Toru Mizuno, Tokyo, JP;
Yoshihiro Onozeki, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 1/06 ;
U.S. Cl.
CPC ...
B23K 1/06 ;
Abstract
A chip junction nozzle in that opposite slant planes which come into contact with edges of 2 sides of the chip in parallel centering around a nozzle center, and a vacuum suction hole opened in the nozzle center are provided, and the slant plane is formed into a mirror surface having the surface hardness more than HrC40. Further, when the surface roughness of the mirror surface is expressed by the average roughness of the center line, the average roughness of the center line is not more than 1.6 &mgr;m.