Patent ID: 9620392
Date: 2017-04-11
CPC Classifications: H01L

Claim:
1. An apparatus for drying a substrate, the apparatus comprising: a spin chuck configured to support the substrate on a top surface thereof and rotate the substrate; a drying chamber configured to receive the spin chuck, the drying chamber having an inlet through which a drying fluid is introduced into the drying chamber, an outlet through which the drying fluid is drained from the drying chamber, and a vortex exhaust through which a vortex of the drying fluid is drained; and a drying fluid line connected to the inlet, wherein the vortex exhaust is disposed above a top surface of the spin chuck and the vortex exhaust comprises a plurality of slits that are angled in a downward direction towards a center of the top surface of the spin chuck such that a vortex of drying fluid, created by the spin chuck, exits the drying chamber through the plurality of slits of the vortex exhaust as the drying fluid is introduced into the drying chamber, and wherein the apparatus further comprises a guiding member disposed in the drying chamber, the guiding member configured to physically separate the guiding chamber into a first tunnel within which the drying fluid is directed downwardly from the inlet to the spin chuck,and a second tunnel, surrounding the first tunnel, within which the vortex of drying fluid is directed from the spin chuck to the vortex exhaust.