METHOD OF OPERATING SEMICONDUCTOR APPARATUS

A method of operating a semiconductor apparatus includes generating an air flow that flows from a covering structure; causing a photomask to move over the covering structure such that particles attached to the photomask are blown away from the photomask by the air flow; and irradiating the photomask...

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Bibliographische Detailangaben
Hauptverfasser: CHEN, Chiu-Hsiang, CHANG, Shih-Ming, LIU, Ru-Gun
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method of operating a semiconductor apparatus includes generating an air flow that flows from a covering structure; causing a photomask to move over the covering structure such that particles attached to the photomask are blown away from the photomask by the air flow; and irradiating the photomask with light through a light transmission region of the covering structure.