Patent ID: 9575411
Date: 2017-02-21
CPC Classifications: B05C,B05D,G03F,H01L

Claim:
1. A developing apparatus comprising: a substrate holder that holds a substrate horizontally; a developer nozzle that supplies a developer onto the substrate to form a liquid puddle; a first turning flow generation mechanism and a second turning flow generation mechanism each including a rotary member that rotates about an axis perpendicular to the substrate while the rotary member is being in contact with the liquid puddle thereby to generate a turning flow in the liquid puddle of the developer formed on the substrate; and a moving mechanism that moves the first and second turning flow generation mechanisms along a surface of the substrate to generate the turning flows at positions different from each other, wherein the rotary member of the first turning flow generation mechanism is controlled so as to move from a central part toward a peripheral edge of the substrate while generating the turning flow in the liquid puddle; and wherein the rotary member of the second turning flow generation mechanism is controlled so as to move from a position closer to the peripheral edge of the substrate than the central part of the substrate toward the peripheral edge while generating the turning flow in the liquid puddle concurrently with the movement of the first turning flow generation mechanism.