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    • 3. 发明申请
    • METHOD FOR PRODUCING GLASS BODY AND METHOD FOR PRODUCING OPTICAL MEMBER FOR EUV LITHOGRAPHY
    • 用于生产玻璃体的方法和用于制造用于EUV光刻的光学构件的方法
    • US20110314868A1
    • 2011-12-29
    • US13169459
    • 2011-06-27
    • Junko MIYASAKAAkio KOIKETomonori OGAWAMasahiro KAWAGISHI
    • Junko MIYASAKAAkio KOIKETomonori OGAWAMasahiro KAWAGISHI
    • C03B20/00C03B19/01
    • C03B19/1423C03B2201/42C03B2207/06C03B2207/20Y02P40/57
    • 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).
    • 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和可燃性气体和 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)。
    • 5. 发明授权
    • Silica glass containing TiO2 and optical material for EUV lithography
    • 含二氧化硅的玻璃和用于EUV光刻的光学材料
    • US07462574B2
    • 2008-12-09
    • US11174533
    • 2005-07-06
    • Yasutomi IwahashiAkio Koike
    • Yasutomi IwahashiAkio Koike
    • C03C3/06G02B1/00C03B19/00C03B19/14
    • C03C3/06C03B19/1484C03B2201/42C03C4/0085C03C2201/42
    • 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.
    • 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%。