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:
Jan. 25, 2005
Filed:
Oct. 02, 2002
Applicants:
Chih-neng Chang, Taipei, TW;
An-hwa Yu, Hsin-Chuang, TW;
Ming-hua Chen, Hsin-Chuang, TW;
Inventors:
Assignee:
Prodisc Technology Inc., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 500 ;
U.S. Cl.
CPC ...
Abstract
A method for coating a film with more than two thicknesses in different sections of the film. A substrate is set on a turntable that spins regularly. A mask is set close to the substrate and a film is coated on the substrate by a coating source. The shape of the mask depends on the thickness of the film. The coating source is set opposite the turntable and the mask is set between the coating source and the turntable.