Patent ID: 7237967
Filing Date: 2007-07-03
Classification: G03D

Abstract:
1. A puddle type developing apparatus in which a developing solution is applied onto a surface of a material to be treated and the developing solution is removed after lapse of a predetermined period of time, comprising: a new solution tank for storing an unused developing solution; a used solution tank for storing a used developing solution which is withdrawn from the material to be treated; a cup; a chuck provided in the cup to rotate the material to be treated; a new solution feeding nozzle which is connected to the new solution tank and a used solution feeding nozzle which is connected to the used solution tank, both nozzles being located above the cup; and a withdrawing pipe which connects the cup and the used solution tank and branches into two branch pipes, the first branch pipe being connected to the used solution tank and the second branch pipe being connected to a waste section.