摘要:
A method includes loading a mask having a defect into a chamber. The defect of the mask is repaired by forming a repair feature in a repair region of the mask. The forming the repair feature includes irradiating the repair region of the mask with a radiation beam. The forming the repair feature further includes while irradiating the repair region, injecting a precursor gas into the chamber to form a first film of the repair feature on the repair region, and while irradiating the repair region, injecting a cleaning gas into the chamber. The cleaning gas reacts with an impurity material in the first film to transform the first film into a first cleaned film.
摘要:
Any defects in the reflective coating or absorber layer of an EUV mask are problematic in transferring a pattern of the EUV mask to a wafer since they produce errors in integrated circuit patterns on the wafer. In this regard, a method of manufacturing an EUV mask is provided according to various embodiments of the present disclosure. According to the method of the present disclosure, the defects in the EUV mask can be detected and repaired with an defect-free multilayer body. A substantially defect-free EUV mask can be made in a cost benefit way accordingly, so as to overcome disadvantages mentioned above.