Patent ID: 9362146
Filing Date: 2016-06-07
CPC Classification: B08B,G02F,H01L

Claim Text:
1. A washing device comprising: a plasma irradiating part configured to receive a substrate from a substrate loading part, and the plasma irradiating part further configured to remove dirt from the substrate by irradiating the substrate with plasma; a dirt washing part configured to receive the substrate from the plasma irradiating part, and the dirt washing part further configured to remove dirt remaining on the substrate; a finishing washing part configured to receive the substrate from the dirt washing part, and the finishing washing part further configured to wash the substrate; a drying part configured to receive the substrate from the finishing washing part, and the drying part further configured to dry the substrate; a substrate unloading part configured to receive the substrate from the drying part, and the substrate unloading part further configured to unload the substrate; and a plurality of transfer rollers configured to transfer the substrate within the washing device, the plurality of transfer rollers comprising: a first floating unit disposed between the first and second transfer rollers, and a second floating unit disposed between the second transfer roller and the third transfer roller, wherein the first and second floating units let air toward the substrate and do not contact the substrate, wherein: the dirt washing part includes a washing unit which is disposed above the third transfer roller to jet a detergent solution to the substrate placed on the third transfer roller; and the plasma irradiating part includes a plasma irradiation unit and the first floating unit facing each other, thereby forming a transfer space therebetween for the substrate to pass through, and wherein the first floating unit is configured to jet air toward the transfer space and simultaneously draws the jetted air back, thereby preventing the substrate from drooping when being transferred across the transfer space by the first transfer roller and the second transfer roller, wherein the substrate is transferred through the plasma irradiating part, the dirt washing part and the drying part by the first, second, and third transfer rollers disposed outside and between the plasma irradiating part, the dirt washing part and the drying part, and the substrate is prevented from drooping between the first and second transfer rollers by only the first floating unit, and is prevented from drooping between the second and third transfer rollers by only the second floating unit.