Patent ID: 8435417
Filing Date: 2013-05-07
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: forming a protective film from an outer end of a semiconductor substrate to an inner portion of the semiconductor substrate without extending to a center of the substrate, the protective film being formed on a first main surface of said semiconductor substrate having said first main surface and a second main surface facing each other; forming an outer peripheral end surface orthogonal to said first main surface and said second main surface by grinding said outer end of said semiconductor substrate and grinding off at least aportion of the protective film; reducing a thickness of said semiconductor substrate to a predetermined thickness by grinding said second main surface of said semiconductor substrate; and etching said second main surface which has been ground by discharging a predetermined chemical solution onto said second main surface while rotating said semiconductor substrate with said second main surface facing upward.