Method for making silica-titania glass having ternary doped critical zone
    1.
    发明专利
    Method for making silica-titania glass having ternary doped critical zone 审中-公开
    制造具有三重关键区域的二氧化硅玻璃的方法

    公开(公告)号:JP2013056819A

    公开(公告)日:2013-03-28

    申请号:JP2012189672

    申请日:2012-08-30

    Abstract: PROBLEM TO BE SOLVED: To provide a doped silica-titania glass that has the required improvements for certain parameters such as a tolerance value for Tzc, CTE vs. temperature slope and Tzc spatial homogeneity and is suitable for use in below 25 nm node lithography as an element of a system.SOLUTION: Selected weight of silica-titania powders and selected weight of dopant powders are weighed out and the silica-titania powders and the selected dopant powders are mixed for forming slurry of the mixed powders using a selected fluid. The slurry is sprayed and dried to form a powder containing free-flowing fine particles having a size of approximately 200 μm diameter or less. The powder is shaped into a shaped article by uniaxial pressing and then further by cold isostatic pressing. The shaped article is consolidated by hot pressing to shape into a doped silica-titania glass blank and further the glass blank is annealed.

    Abstract translation: 要解决的问题:提供掺杂的二氧化硅 - 二氧化钛玻璃,其对于某些参数(例如Tzc,CTE与温度斜率和Tzc空间均匀性的公差值)具有必要的改进,并且适用于低于25nm 节点光刻作为系统的一个要素。 解决方案:称出二氧化硅 - 二氧化钛粉末的选定重量和选择重量的掺杂剂粉末,并且使用所选择的流体混合二氧化硅 - 二氧化钛粉末和所选择的掺杂剂粉末以形成混合粉末的浆料。 将浆料喷雾并干燥以形成包含直径为约200μm或更小的尺寸的自由流动的细颗粒的粉末。 通过单轴压制将粉末成形为成形制品,然后通过冷等静压制成。 通过热压将成形制品固结成形成掺杂的二氧化硅 - 二氧化钛玻璃坯料,并进一步对玻璃坯料进行退火。 版权所有(C)2013,JPO&INPIT

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