Patent ID: 6969863
Filing Date: 2005-11-29
Classification: G03F,Y10S

Abstract:
1. An arrangement for feeding or dissipating heat to/from a semiconductor substrate for the purpose of preparing or post-processing a lithographic process, comprising: at least one plate that has a substantially planar surface for accommodating the semiconductor substrate and for transmitting heat between the plate and the semiconductor substrate; a source of heat or cold that is coupled to the plate for the purpose of heating or cooling the plate; a light source for generating a focused light beam and directing the light beam toward an upper surface of the semiconductor substrate, wherein the upper surface of the substrate is coated with photosensitive resist and wherein the light source for generating the focused light beam is a laser diode that emits a light beam with a wavelength of more than 600 nanometers; a detector with at least one sensor for detecting the light beam generated by the light source and reflected by the semiconductor substrate; and a control unit coupled to the detector for the purpose of evaluating a position of the reflected light beam.