Patent ID: 9548199
Date: 2017-01-17
CPC Classifications: C23C,H01L

Claim:
1. A method of forming a thin film in a processing station, the processing station having a wafer chuck and a supply line, the supply line having a tube dispensing opening, the method comprising: dispensing a fluid resin from the tube dispensing opening onto a semiconductor wafer while the semiconductor wafer is spinning, and changing a relative position between the wafer chuck and the tube dispensing opening so that the fluid resin is dispensed onto the semiconductor wafer in a circular pattern; and while dispensing the fluid resin, decelerating the semiconductor wafer from spinning to a stop after the circular pattern has been formed, and changing a relative position between the wafer chuck and the tube dispensing opening so that the fluid resin continues from the circular pattern to a center of the semiconductor wafer, and then forms a puddle of resin over the center of the semiconductor wafer, wherein the process of dispensing the fluid resin continues after the spinning of the semiconductor wafer is stopped.