Method for producing glass body and method for producing optical member for EUV lithography
    1.
    发明授权
    Method for producing glass body and method for producing optical member for EUV lithography 失效
    玻璃体的制造方法及用于制造EUV光刻用光学部件的方法

    公开(公告)号:US08567214B2

    公开(公告)日:2013-10-29

    申请号:US13169459

    申请日:2011-06-27

    IPC分类号: C03B19/14

    摘要: The present invention relates to a method for producing a glass body containing: hydrolyzing a silicon compound and a compound containing a metal serving as a dopant, in a flame projected from a burner to form glass fine particles; and depositing and growing the formed glass fine particles on a base material, in which a raw material mixed gas containing a gas of the silicon compound, a gas of the compound containing a metal serving as a dopant, and either one of a combustible gas and a combustion supporting gas is fed into a central nozzle (A) positioning in the center of the burner; the other gas of the combustible gas and the combustion supporting gas is fed into a nozzle (B) different from the central nozzle (A) of the burner; a combustible gas or a combustion supporting gas is arbitrarily fed into a nozzle different from the nozzles (A) and (B); and a flow rate of the raw material mixed gas is 50% or more and not more than 90% of the largest flow rate among flow rate(s) of the combustible gas(ses) and the combustion supporting gas(ses) fed from other nozzle or nozzles than the central nozzle (A).

    摘要翻译: 本发明涉及一种玻璃体的制造方法,其特征在于,在从燃烧器投射的火焰中,含有硅化合物和含有作为掺杂剂的金属的化合物,形成玻璃微粒; 并且将形成的玻璃微粒沉积并生长在基材上,其中含有硅化合物的气体的原料混合气体,含有作为掺杂剂的金属的化合物的气体,以及可燃性气体和 燃烧支持气体被供给到位于燃烧器中心的中心喷嘴(A)中; 可燃气体和燃烧辅助气体的其他气体被供给到与燃烧器的中心喷嘴(A)不同的喷嘴(B)中; 将可燃气体或燃烧性支持气体任意地供给到与喷嘴(A)和(B)不同的喷嘴中; 并且原料混合气体的流量在可燃气体(s)和从其他方式供给的燃烧负载气体(s))的流量之间的最大流量的50%以上且不大于90% 喷嘴或喷嘴比中心喷嘴(A)。

    METHOD FOR PRODUCING SILICA-BASED GLASS SUBSTRATE FOR IMPRINT MOLD, AND METHOD FOR PRODUCING IMPRINT MOLD
    4.
    发明申请
    METHOD FOR PRODUCING SILICA-BASED GLASS SUBSTRATE FOR IMPRINT MOLD, AND METHOD FOR PRODUCING IMPRINT MOLD 审中-公开
    用于制造用于印模的二氧化硅玻璃基材的方法和用于生产印模的方法

    公开(公告)号:US20120205343A1

    公开(公告)日:2012-08-16

    申请号:US13445345

    申请日:2012-04-12

    IPC分类号: C03C15/00

    摘要: The present invention relates to a method for producing a silica glass substrate for an imprint mold, containing: obtaining a glass body from a glass-forming raw material containing an SiO2 precursor; machining the glass body into a glass substrate having a predetermined shape; and removing an affected layer on a surface of the glass substrate, to produce a silica glass substrate for an imprint mold having a fictive temperature distribution in a region from the surface to a depth of 10 μm on the side to be subjected to a transfer pattern formation of the glass substrate being within ±30° C.

    摘要翻译: 本发明涉及一种压印模具用石英玻璃基板的制造方法,其特征在于,包括:从含有SiO 2前体的玻璃成形原料获得玻璃体; 将玻璃体加工成具有预定形状的玻璃基板; 并除去玻璃基板的表面上的受影响层,从而生成用于压印模具的石英玻璃基板,该印模具具有在要进行转印图案的一侧的表面至深度10μm的区域中具有虚构的温度分布 玻璃基板的形成在±30℃以内

    Silica glass containing TiO2 and optical material for EUV lithography
    10.
    发明授权
    Silica glass containing TiO2 and optical material for EUV lithography 有权
    含二氧化硅的玻璃和用于EUV光刻的光学材料

    公开(公告)号:US07462574B2

    公开(公告)日:2008-12-09

    申请号:US11174533

    申请日:2005-07-06

    摘要: A silica glass containing TiO2, characterized in that the fluctuation of the refractive index (Δn) is at most 2×10−4 within an area of 30 mm×30 mm in at least one plane. A silica glass containing TiO2, characterized in that the TiO2 concentration is at least 1 mass %, and the striae pitch is at most 10 μm. An optical material for EUV lithography, characterized in that it is made of a silica glass containing TiO2, and the fluctuation of the refractive index (Δn) is at most 2×10−4 in a plane perpendicular to the incident light direction. An optical material for EUV lithography, characterized in that it is made of a silica glass containing TiO2, wherein the TiO2 concentration is at least 1 mass %, and the difference between the maximum value and the minimum value of the TiO2 concentration is at most 0.06 mass % in a plane perpendicular to the incident light direction.

    摘要翻译: 含有TiO 2的二氧化硅玻璃,其特征在于,在至少一个平面中,在30mm×30mm的面积内,折射率(Deltan)的波动至多为2×10 -4。 含有TiO 2的二氧化硅玻璃,其特征在于TiO 2浓度为1质量%以上,条纹间距为10μm以下。 一种用于EUV光刻的光学材料,其特征在于它由含有TiO 2的二氧化硅玻璃制成,并且在垂直于入射光方向的平面中折射率(Deltan)的波动为至多2×10 -4。 一种用于EUV光刻的光学材料,其特征在于,其由TiO 2的二氧化硅玻璃制成,其中TiO 2浓度为至少1质量%,并且TiO 2浓度的最大值和最小值之间的差为至多0.06 在垂直于入射光方向的平面中的质量%。