Resonators for Noise Reduction in Lithography Equipment

Abstract

The invention discloses a resonator for noise reduction of lithographic equipment, which comprises: an inner cavity and a nozzle connected to the inner cavity, the nozzle is composed of multi-layer materials, and the nozzle includes outer walls from outside to inside , air layer, sound-absorbing layer and perforated panels on the inner wall. The resonator provided by the invention can realize the adjustable resonant frequency, making it the same as the frequency of the noise source, so as to achieve the technical effect of effective sound absorption.

Description

technical field [0001] The invention relates to the field of integrated circuit equipment manufacturing, in particular to a resonator used for noise reduction of lithography equipment. Background technique [0002] A lithographic apparatus is a machine that applies a desired pattern to a substrate. For example, lithographic equipment may be used in the manufacture of integrated circuits (ICs). In this case, a patterning device, alternatively referred to as a mask or reticle, may be used to generate a circuit pattern corresponding to a single layer of the IC. The pattern can be imaged onto a target portion (eg, comprising a portion, one or more dies) on a substrate (eg, a silicon wafer). Pattern imaging is performed by imaging the pattern onto a layer of radiation sensitive material (resist) provided on the substrate. Typically, a single substrate will contain a network of adjacent target portions that are sequentially exposed. A conventional lithographic apparatus compri...

AI Technical Summary

Problems solved by technology

[0012] The defect in the above-mentioned technical solution for noise elimination is that reverberation noise also has a huge impact on the internal world of the lithography machine, and there is no solution for this in the existing technical solution

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