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:
Nov. 16, 2004
Filed:
Jul. 09, 2002
Masatoshi Asami, Tokyo, JP;
Adtec Engineering Co., Ltd., Tokyo, JP;
Abstract
An aligner which enables a uniform close contact between a photo mask and a printed circuit board is provided. The aligner includes: a photo mask ( ) provided with tapered portions ( ); a mask holder ( ) for supporting the photo mask ( ) at the tapered portions; a copy frame ( ) for supporting the mask holder ( ); a load regulating system ( ); and a Z-axis moving system ( ) having supporting arms ( ) on which the mask holder ( ) is placed through the load regulating system ( ); and a guide system ( ) having a guide shaft ( ), so that the photo mask ( ) can be moved relative to a printed circuit board (B) while maintaining the position in X and Y directions by the guidance of the guide system ( ). The photo mask ( ) closely contacts with a printed circuit board (B) by a tare weight of the copy frame ( ), mask holder ( ), and the photo mask ( ), and the contact pressure is regulated by the load regulating system ( ). The copy frame ( ) can be manipulated on a slant with respect to the guide shaft ( ) of the guide system ( ), whereby the contact uniformity between the photo mask ( ) and printed circuit board (B) is improved.