Patent ID: 8932962
Filing Date: 2015-01-13
Classification: H01L

Abstract:
1. A method for dispensing a liquid onto a wafer having a geometric center and a peripheral edge, the method comprising: placing the wafer on a wafer-receiving surface, the wafer-receiving surface being rotatable about an axis and having a rotational center defined by the axis, whereby the wafer's geometric center is aligned with the rotational center of the wafer-receiving surface; dispensing the liquid onto the wafer using a scanning dispensing nozzle positioned over the wafer while the wafer-receiving surface and the wafer are rotating about the axis and the dispensing nozzle is moving from the rotational center to the peripheral edge of the wafer; and controlling the dispensing liquid's dispensing temperature as a function of the dispensing nozzle's radial position between the rotational center and the peripheral edge of the wafer, while the liquid is being dispensed.