EXPOSURE METHOD, METHOD FOR FORMING PROJECTING AND RECESSED PATTERN, AND METHOD FOR MANUFACTURING OPTICAL ELEMENT

An exposure pattern having a line width of submicron size is simply formed by using an inexpensive and stable solid state laser or a gas laser as an exposure light source, and by using a photoresist for g-line or i-line. The exposure is performed by locally controlling a reaction time constant of th...

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Bibliographic Details
Main Authors EGAMI, CHIKARA, HODOSAWA, YOSHIHITO
Format Patent
LanguageEnglish
French
German
Published 29.04.2009
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Summary:An exposure pattern having a line width of submicron size is simply formed by using an inexpensive and stable solid state laser or a gas laser as an exposure light source, and by using a photoresist for g-line or i-line. The exposure is performed by locally controlling a reaction time constant of the photosensitive material with beaming the laser beam on a predetermined portion of a layer of the photosensitive material having a predetermined thickness formed on the surface of a substrate W, with beam intensity and scanning rate of the laser beam being controlled.
Bibliography:Application Number: EP20060701442