Patent ID: 9548225
Date: 2017-01-17
CPC Classifications: B08B,F26B,G03F,H01L

Claim:
1. A method for using an edge bead removal apparatus, comprising: providing a cylindrical reticle having a photoresist layer formed on a circumferential surface of the cylindrical reticle, wherein the cylindrical reticle includes at least an imaging area between a first non-imaging area at a first end edge and a second non-imaging area at a second end edge, and the photoresist layer covers the first and second non-imaging areas; clamping the cylindrical reticle to incline downwardly having a non-zero pre-determined angle; moving an edge bead removal solvent nozzle close to the circumferential surface of the first end edge of the cylindrical reticle; and spraying an edge bead removal solvent to the circumferential surface of the first end edge of the cylindrical reticle to remove a portion of the photoresist layer on the circumferential surface of the first end edge of the cylindrical reticle.