Patent ID: 6680078
Filing Date: 2004-01-20
Classification: G03F,H01L

Abstract:
A method for dispensing a flowable substance on a microelectronic substrate, comprising:initiating a flow of the flowable substance toward a surface of the microelectronic substrate; dispensing a portion of the flowable substance on the surface of the microelectronic substrate; receiving an image of a field that includes at least some of the flowable substance on the surface of the microelectronic substrate; based on the image, determining an elapsed time between a first point in time and a second point in time, the second point in time corresponding to a point at which a selected fraction of the field is covered with the flowable substance; determining an error value between the elapsed time and a target elapsed time; and adjusting a characteristic of a manner in which the flowable substance is directed toward the microelectronic substrate when the error value exceeds a target error value by a pre-selected amount.