Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiwan Semiconductor Mfg Co LtdfiledCriticalTaiwan Semiconductor Mfg Co Ltd
Priority to TW087104761ApriorityCriticalpatent/TW366540B/en
Application grantedgrantedCritical
Publication of TW366540BpublicationCriticalpatent/TW366540B/en
A multi-film structure etching method, including the following steps: provision of a substrate having the top with a plurality of semiconductor layers deposited for forming multi-film structure. Then comes the coating on the top semiconductor layer surface an anti-reflection coating, ARC as blocking mask. Then a photoresist coating for definition of the etched pattern, forming the opening showing part of the surface of ARC and for multi-film structure etching to the ARC through the opening.