Halftone phase shifting photomask and blanks for halftone phase shifting photomask therefor and a method for forming pattern by using the halftone phase shifting photomask

   
   

In a halftone phase shifting photomask 108, having a pattern of halftone phase shifting film 102 containing at least chromium and fluorine, the halftone phase shifting film is heat-treated at a temperature between 250.degree. C. and 500.degree. C. so that a change of the optical property of the film produced by the application of excimer laser for exposure to the film is decreased.

В photomask 108 halftone участка перенося, имеющ картину пленки 102 halftone участка перенося содержа по крайней мере хромий и фтор, пленка halftone участка перенося heat-treated на температуре между 250.degree. C и 500.degree. C так, что будет уменьшито изменение оптически свойства пленки произведенной применением лазера excimer для подвержения к пленке.

 
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