Method for producing radiation-resistant quartz glass material, and quartz glass material
    214.
    发明申请
    Method for producing radiation-resistant quartz glass material, and quartz glass material 审中-公开
    生产耐辐射石英玻璃材料的方法和石英玻璃材料

    公开(公告)号:US20040250572A1

    公开(公告)日:2004-12-16

    申请号:US10782935

    申请日:2004-02-23

    Abstract: A method for producing a quartz glass material with high resistance to radiation-induced density modifications when exposed to ultraviolet radiation at about 193 nm and energy densities of the order of the working energy densities of optical systems for microlithography, in which the peroxy defect level in the quartz glass material is minimized. In this way the creation of closely neighbored hydroxyl groups can be inhibited, which have been identified as an essential cause for radiation induced density reduction of the quartz glass material.

    Abstract translation: 一种用于制造在暴露于约193nm的紫外线辐射下具有高耐辐射诱导密度变化的石英玻璃材料的方法,以及用于微光刻的光学系统的工作能量密度级的能量密度,其中过氧缺陷水平 石英玻璃材料最小化。 以这种方式,可以抑制紧密相邻的羟基的产生,这已被认为是石英玻璃材料的辐射诱导密度降低的重要原因。

    Silica glass member for semiconductor and production method thereof
    216.
    发明申请
    Silica glass member for semiconductor and production method thereof 失效
    半导体二氧化硅玻璃及其制造方法

    公开(公告)号:US20030101748A1

    公开(公告)日:2003-06-05

    申请号:US10300739

    申请日:2002-11-21

    CPC classification number: C30B35/00 C03C3/06 C03C15/00 C03C2201/02 C03C2203/52

    Abstract: A silica glass member for semiconductor in which each concentration of Fe, Cu, Cr and Ni is 5 ppb or less and the concentration of an OH group is 30 ppm or less and which has a viscosity of 1013.0 poise or more at 1200null C. is provided as a silica glass member for semiconductor having high heat-resistance and higher purity.

    Abstract translation: Fe,Cu,Cr和Ni的各浓度为5ppb以下,OH基浓度为30ppm以下,在1200℃下的粘度为1013.0泊以上的半导体用硅玻璃构件。 被提供为具有高耐热性和高纯度的半导体用石英玻璃构件。

    Process for reducing or eliminating bubble defects in sol-gel silica glass
    217.
    发明申请
    Process for reducing or eliminating bubble defects in sol-gel silica glass 审中-公开
    减少或消除溶胶 - 凝胶石英玻璃中气泡缺陷的方法

    公开(公告)号:US20020157418A1

    公开(公告)日:2002-10-31

    申请号:US10101437

    申请日:2002-03-18

    Abstract: This invention resides in a process for making silica articles having few or no visible bubbles by sintering silica gels derived from a sol-gel process. The process incorporates control of pH during hydroxylation and gelation, as well as chlorination at temperatures previously considered unsuitable. The process optionally incorporates addition of dispersant to the silica solution.

    Abstract translation: 本发明在于通过烧结衍生自溶胶 - 凝胶法的二氧化硅凝胶来制造具有很少或没有可见气泡的二氧化硅制品的方法。 该过程包括在羟基化和凝胶化期间pH的控制,以及先前认为不合适的温度下的氯化。 该方法任选地将分散剂加入到二氧化硅溶液中。

    High purity opaque silica glass
    219.
    发明授权
    High purity opaque silica glass 失效
    高纯度不透明石英玻璃

    公开(公告)号:US5977000A

    公开(公告)日:1999-11-02

    申请号:US977887

    申请日:1997-11-25

    Abstract: Opaque silica glass having a density of 2.0 to 2.18 g/cm.sup.3, sodium and potassium elements concentrations in the silica glass of each 0.5 ppm or less and an OH group concentration of 30 ppm or less, and containing bubbles which are independent bubbles having the following physical values: a bubble diameter of 300 .mu.m or less, and a bubble density of 100,000 to 1,000,000 bubbles/cm.sup.3, and a production process for opaque silica glass, including: filling quartz raw material grain having a particle size of 10 to 350 .mu.m in a heat resistant mold, heating it in a non-oxidizing atmosphere from a room temperature up to a temperature lower by 50 to 150.degree. C. than a temperature at which the above raw material grain is melted at a temperature-raising speed not exceeding 50.degree. C./minute, then, slowly heating it up to a temperature higher by 10 to 80.degree. C. than the temperature at which the quartz raw material grain is melted at the speed of 10.degree. C./minute or less, and cooling after maintaining at the above temperature.

    Abstract translation: 密度为2.0〜2.18g / cm 3的不透明二氧化硅玻璃,二氧化硅玻璃中的钠和钾元素浓度为0.5ppm以下,OH基浓度为30ppm以下,并且含有具有以下的独立气泡的气泡 物理值:气泡直径为300μm以下,气泡密度为100,000〜1,000,000个气泡/ cm 3,以及不透明石英玻璃的制造方法,其特征在于,填充粒径为10〜350μm的石英原料粒子 在耐热模具中,将其在非氧化性气氛中从室温加热到低于50-150℃的温度,而不是以不升温速度将上述原料颗粒熔化的温度 超过50℃/分钟,然后缓慢加热至高于10℃至80℃的温度,高于石英原料颗粒以10℃/分钟或更低的速度熔化的温度, 并保持冷却 在上述温度下。

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