Manufacturing method for exposure mask, generating method for mask substrate information, mask substrate, exposure mask, manufacturing method for semiconductor device and server
View Patent ↗There is disclosed a manufacturing method for exposure mask, which comprises acquiring a first information showing surface shape of surface of each of a plurality of mask substrates, and a second information showing the flatness of the surface of each of mask substrates before and after chucked on a mask stage of an exposure apparatus, forming a corresponding relation of each mask substrate, the first information and the second information, selecting the second information showing a desired flatness among the second information of the corresponding relation, and preparing another mask substrate having the same surface shape as the surface shape indicated by the first information in the corresponding relation with the selected second information, and forming a desired pattern on the above-mentioned another mask substrate.
1. A method of manufacturing a device, comprising:
preparing a mask substrate, wherein a simulated flatness of a surface of the mask substrate when the mask substrate is chucked on an exposure apparatus satisfies a specification of a flatness with respect to the surface of the mask substrate;
forming a device pattern on the mask substrate to manufacture an exposure mask;
chucking the exposure mask on a mask stage of the exposure stage;
illuminating the device pattern formed on the substrate by a lighting optical system, and focusing the device pattern to make an image of the device pattern on a desired substrate a projecting optical system; and
patterning the desired substrate based on the image made on the desired substrate to form a pattern for forming a device.
2. The method according to claim 1 , wherein a peripheral region of the mask substrate is lower in height than a central portion of the mask substrate toward a peripheral edge of the mask substrate.
3. The method according to claim 1 , wherein, in preparing the mask substrate, the mask substrate is chucked at a side of the surface of the mask substrate on the exposure apparatus.
4. The method according to claim 1 , wherein the surface of the mask substrate includes a first region at which major part of which patterns are to be formed and a second region at which the mask substrate is to be chucked on a mask stage of the exposure apparatus.
5. The method according to claim 1 , further comprising measuring a flatness of the surface of the mask substrate, after the mask substrate is chucked on the exposure apparatus.