Phase Shift Blankmask and Photomask using the Flat Panel Display

A phase inversion blank mask for a flat panel display (FPD) according to the present invention comprises a phase inversion film having a transmission variation controlling layer and a phase inversion layer which are sequentially provided on a transparent substrate. The phase inversion film has a tra...

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Main Authors KIM DONG GEUN, KANG DONG SHIK, LEE JONG MIN, JEON YOUNG JO, GONG JONG GYU
Format Patent
LanguageEnglish
Korean
Published 04.07.2023
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Abstract A phase inversion blank mask for a flat panel display (FPD) according to the present invention comprises a phase inversion film having a transmission variation controlling layer and a phase inversion layer which are sequentially provided on a transparent substrate. The phase inversion film has a transmittance deviation of 4 % or less for each wavelength with respect to exposure light in a deep ultraviolet (DUV) area of a wavelength of 248-380 nm. Since the phase inversion blank mask for a FPD and a photomask according to the present invention have the transmittance deviation of 4 % or less for each wavelength with respect to the exposure light in the DUV area of the wavelength of 248-380 nm by forming the phase inversion film composed of the transmission variation controlling layer and the phase inversion layer, thereby facilitating production of a high-resolution display. 본 발명에 따른 FPD용 위상반전 블랭크 마스크는, 투명 기판 상에 순차적으로 구비된 투과변이 제어층 및 위상반전층을 포함하는 위상반전막이 구비되며, 상기 위상반전막은 248㎚ ∼ 380㎚의 Deep Ultraviolet(DUV) 영역 파장의 노광광에 대하여 각 파장별로 4% 이하의 투과율 편차를 갖다. 본 발명에 따른 FPD용 위상반전 블랭크 마스크 및 포토마스크는 투과변이 제어층 및 위상반전층으로 이루어진 위상반전막을 형성함에 따라, 248㎚ ∼ 380㎚의 Deep Ultraviolet(DUV) 영역 파장의 노광광에 대하여 각 파장별로 투과율 편차가 4% 이하가 되도록 함으로써 고해상도 디스플레이 제작이 가능하다.
AbstractList A phase inversion blank mask for a flat panel display (FPD) according to the present invention comprises a phase inversion film having a transmission variation controlling layer and a phase inversion layer which are sequentially provided on a transparent substrate. The phase inversion film has a transmittance deviation of 4 % or less for each wavelength with respect to exposure light in a deep ultraviolet (DUV) area of a wavelength of 248-380 nm. Since the phase inversion blank mask for a FPD and a photomask according to the present invention have the transmittance deviation of 4 % or less for each wavelength with respect to the exposure light in the DUV area of the wavelength of 248-380 nm by forming the phase inversion film composed of the transmission variation controlling layer and the phase inversion layer, thereby facilitating production of a high-resolution display. 본 발명에 따른 FPD용 위상반전 블랭크 마스크는, 투명 기판 상에 순차적으로 구비된 투과변이 제어층 및 위상반전층을 포함하는 위상반전막이 구비되며, 상기 위상반전막은 248㎚ ∼ 380㎚의 Deep Ultraviolet(DUV) 영역 파장의 노광광에 대하여 각 파장별로 4% 이하의 투과율 편차를 갖다. 본 발명에 따른 FPD용 위상반전 블랭크 마스크 및 포토마스크는 투과변이 제어층 및 위상반전층으로 이루어진 위상반전막을 형성함에 따라, 248㎚ ∼ 380㎚의 Deep Ultraviolet(DUV) 영역 파장의 노광광에 대하여 각 파장별로 투과율 편차가 4% 이하가 되도록 함으로써 고해상도 디스플레이 제작이 가능하다.
Author LEE JONG MIN
GONG JONG GYU
JEON YOUNG JO
KIM DONG GEUN
KANG DONG SHIK
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DocumentTitleAlternate 플랫 패널 디스플레이용 위상반전 블랭크 마스크 및 포토마스크
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Snippet A phase inversion blank mask for a flat panel display (FPD) according to the present invention comprises a phase inversion film having a transmission variation...
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SubjectTerms APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
Title Phase Shift Blankmask and Photomask using the Flat Panel Display
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