Patent ID: 8028649
Filing Date: 2011-10-04
Classification: H01L,H05K

Abstract:
1. A liquid ejection apparatus, comprising: a head having a plurality of nozzle groups, each of the plurality of nozzle groups including a plurality of nozzles which are aligned in a first direction and performs ejection of resist liquid onto a wiring substrate; a scanning device which causes the head and the wiring substrate to move relatively in the first direction; an ejection control device which controls the ejection of the resist liquid from the head; and a scanning control device which controls the scanning device in such a manner that the head and the wiring substrate are relatively moved only once in the first direction, through a region of the wiring substrate which corresponds to one relative movement in the first direction of the wiring substrate and the scanning device, wherein: the ejection control device is configured to control the ejection of the resist liquid from the head to cause the resist liquid to be ejected onto a same position of the wiring substrate sequentially, at prescribed time intervals, from different nozzles of one of the plurality of nozzle groups, to deposit the resist liquid ejected onto the same position of the wiring substrate sequentially from the different nozzles of the one of the plurality of nozzle groups, in such a manner that a resist pattern having a prescribed thickness and a prescribed pattern is formed on the wiring substrate; the plurality of nozzle groups are arranged in a second direction which is perpendicular to the first direction, at arrangement intervals which are equal to a minimum interval in the second direction between dots of the resist pattern on the wiring substrate; and a diameter of dot of the resist liquid ejected initially onto the same position of the wiring substrate from each of the plurality of nozzle groups is less than a distance between centers of dots of the resist liquid which are mutually adjacent in the second direction on the wiring substrate.