Patent ID: 7387951
Filing Date: 2008-06-17
Classification: H01L

Abstract:
1. A method of dicing a semiconductor wafer into chips, comprising the steps of: forming parting lines on a semiconductor wafer in order to divide the semiconductor wafer into chips, and holding the semiconductor wafer by an adhesive tape; placing the chips of the semiconductor wafer held by the adhesive tape on a single plane without separating the chips from each other, and radially drawing the adhesive tape such that the chips are separated from each other and a clearance is formed between the adjoining chips while the chips are on the single plane; wherein the temperature difference in the adhesive tape is determined by a distance of the adhesive tape adhered from the center of the semiconductor wafer to an outer edge and a distance from the outer edge of the semiconductor wafer to a terminating end of the exposed adhesive tape, wherein a drawing amount of the adhesive tape is controlled by making a center portion temperature in a center portion of the adhesive tape and a peripheral portion temperature in a peripheral portion of the adhesive tape different from one another, and wherein in the step of drawing the adhesive tape, the center portion temperature in the center portion and the peripheral portion temperature in the peripheral portion in the adhesive tape are made different from one another by blowing air having a temperature higher than ambient air.