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:
Dec. 01, 1992
Filed:
May. 06, 1991
Applicant:
Inventor:
Hiroyuki Sakaguchi, Fukuoka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
3241 / ; 358101 ; 358106 ; 358107 ; 382-8 ;
Abstract
The present invention provides a method of detecting a floated lead of an electrical component which involves the steps of positioning an electrical component above a laser device on the way of feeding the electrical component to a substrate by sucking the electrical component to a nozzle of a pick and place head; radiating a laser light from a laser device toward the leads of the electrical component thereby to detect the heights of three points of the leads; and then calculating a virtual plane including the three points of the leads to obtain a height difference of the respective leads with respect to the virtual plane.