Patent ID: 7709295
Filing Date: 2010-05-04
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: providing a semiconductor wafer having a first main surface, a second main surface opposite the first main surface, an outer circumferential portion, and a plurality of individual semiconductor chips separated by a plurality of scribe lines and arranged on the first main surface; forming a passivation film made of a polyimide resin film on the outer circumferential portion and on the first main surface of the semiconductor wafer so as to cover the semiconductor chips and the scribe lines; selectively removing the passivation film from the scribe lines and from the outer circumferential portion of the semiconductor wafer but not from the semiconductor chips arranged on the first main surface of the semiconductor wafer; bonding a protective tape onto the first main surface of the semiconductor wafer after the removing step; and grinding the second main surface of the semiconductor wafer after the bonding step.