Patent ID: 8997646
Filing Date: 2015-04-07
Classification: B41F,H01L,Y02E

Abstract:
1. An electrode formation system for a solar cell to form an electrode of a base member used for the solar cell, said electrode formation system comprising: a screen printing unit comprising: wherein a lower surface of each of the bridge portions is formed into a recess step surface with respect to a lower surface of the covering portion, and wherein in the screen printing process, the squeegee of the squeegee head of the cartridge type is disposed such that a longitudinal direction of the squeegee conforms with a direction intersecting with a direction orthogonal to an alignment direction of the opening portions and the bridge portions at a given angle, and the squeegee travels relatively to the metal mask along the direction orthogonal to the alignment direction of the opening portions and the bridge portions, whereby the opening portions including lower sides of the bridge portions are filled with the paste.