Patent ID: 7484677

Claim:
An edge remover capable of preventing chemical solvents from splashing onto the interior of a substrate, comprising: a support pedestal for holding said substrate in the process of edge removing, wherein said support pedestal holds said substrate from the central portion of the bottom surface of said substrate so as to facilitate cleaning off photoresist materials attached onto the top and bottom surfaces of the edge of said substrate; an edge removing arm, having an upper plate and a lower plate respectively protruding forward, wherein an inward recess is constructed by both said upper plate and said lower plate for receiving the edge of said substrate to perform said edge removing procedure, and a first nozzle is disposed at the bottom surface of said upper plate to spray a chemical solvent for cleaning the top surface of the edge of said substrate, and a second nozzle is disposed at the top surface of said lower plate to spray a chemical solvent for cleaning the bottom surface of the edge of said substrate, and the upright part of a wall of said edge removing arm defining said recess has an opening through which said chemical solvents and dissolved photoresist materials at said substrate are pumped out; and a gas sprayer, mounted on the top of said edge removing arm and having a hooked nozzle extending forward around the front end of said upper plate into said recess and facing said opening of said wall to spray gas out so as to prevent said chemical solvent sprayed out from said first nozzle at the bottom surface of said upper plate from splashing onto the interior of said substrate.