Patent ID: 7862959
Filing Date: 2011-01-04
Classification: B82Y,G03F,H01J

Abstract:
1. A pattern exchanging method of a transfer mask for exposure, the transfer mask for exposure including a mask portion having a plurality of cells, each cell having an opening with a predetermined pattern, wherein the mask portion has one or more blocks, each of which contains one or more cells, the mask portion has one or more supporting parts that supports the one or more blocks, the mask portion has one or more adhesive members that adhesively connects the one or more blocks and the one or more supporting parts and are capable of being removed at any time, each of the supporting parts includes a stopper part adhesively connected to the corresponding block via the adhesive member, and a beam part that supports the stopper part and that protrudes under the corresponding block, and the blocks are arranged in such a manner that a circle surrounding all the blocks has a minimum diameter, wherein each block, stopper part and beam part is made of silicon with an SiO the transfer mask for exposure being made by: a first step of forming the plurality of cells and the stopper parts on a surface of the mask portion by a dry etching process; after the first step, a second step of forming the beam parts on a reverse-surface of the mask portion by both a machining process and an etching process; after the second step, a third step of connecting the blocks and the stopper parts by providing the adhesive members therebetween; and after the third step, a fourth step of removing the SiO the pattern exchanging method comprising: a step of removing the adhesive member from between the block having a pattern to be exchanged and its corresponding stopper part, in order to remove the block, a step of placing a new block on the beam part of the supporting part corresponding to the removed block, and a step of connecting the stopper part of the supporting part corresponding to the removed block and the new block by providing the adhesive member therebetween.