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:
Apr. 22, 2003
Filed:
Apr. 02, 2002
Applicant:
Inventors:
Katsumi Momose, Tokyo, JP;
Masatoshi Asami, Tokyo, JP;
Assignee:
Adtec Engineering Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/00 ; G01N 2/100 ; G01N 2/300 ;
U.S. Cl.
CPC ...
G01J 1/00 ; G01N 2/100 ; G01N 2/300 ;
Abstract
The invention provides an aligner enabling to perform high accuracy positioning at manufacturing a multi-layered circuit board. A board alignment mark is photographed by a CCD camera by irradiating X-ray from an X-ray generator at the state removing a photo mask, and position of the board alignment mark is memorized. Then, the photo mask is set on a print circuit board, a mask alignment mark is photographed, and positioning of the mask alignment mark and the print circuit board is performed by comparing with position of memorized board alignment mark and by moving a platen so that the gap becomes zero.