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:
Feb. 16, 2010
Filed:
May. 12, 2008
Hidetaka Hanaoka, Hara-Mura, JP;
Hidetaka Hanaoka, Hara-Mura, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A method for ejecting a liquid material includes classifying the plurality of nozzles of a head into a plurality of nozzle groups having different landing position accuracies for droplets; and performing ejection includes main scanning for ejecting droplets of the liquid material through selected nozzles while generating relative movement in a main-scanning direction between the head and a target substrate, and sub-scanning for generating relative movement between the head and the target substrate in a sub-scanning direction orthogonal to the main-scanning direction. The main scanning and the sub-scanning are performed separately for each of the plurality of nozzle groups. During the sub-scanning, relative movement is generated in accordance with correction information for the corresponding nozzle group for correcting landing positions of the droplet. During the main scanning, a droplet is ejected through at least one nozzle selected from the corresponding nozzle group.