Patent ID: 7807018
Filing Date: 2010-10-05
Classification: H01L

Abstract:
1. An etching apparatus, for use in the manufacture of a flat panel display device, comprising one or more turn stages for changing a processing direction of a substrate, wherein each of the turn stages includes: one or more carry-in roller units for accepting the substrate; one or more carry-out roller units for discharging the substrate, the carry-out roller units having an upwardly and downwardly movable structure; and at least one stopper having upper and lower ends for traveling substrate along a path of the carry-in roller units and a path of the carry-out roller units, the upper end diameter of the stopper being smaller or lager than that of the lower end diameter thereof; wherein the carry-out roller units are installed to perform rolling motion in a direction substantially perpendicular to the carry-in roller units, and at least one the stopper is located in the corner of the turn stages.