Photomask and fabrication method therefor

A method of manufacturing a mask includes depositing an end-point layer over a light transmitting substrate, depositing a phase shifter over the end-point layer, depositing a hard mask layer over the phase shifter, and removing a portion of the hard mask layer and a first portion of the phase shifte...

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Bibliographische Detailangaben
Hauptverfasser: YANG, MIN-AN, WEI, SHAOI, CHANG, HAO-MING, HSU, SHENGANG, LAI, CHIEN-HUNG, LIN, CHENG-MING, CHU, YUANIH, WANG, HSUAN-WEN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A method of manufacturing a mask includes depositing an end-point layer over a light transmitting substrate, depositing a phase shifter over the end-point layer, depositing a hard mask layer over the phase shifter, and removing a portion of the hard mask layer and a first portion of the phase shifter to expose a portion of the end-point layer. The end-point layer and the light transmitting substrate are transparent to a predetermined wavelength.