Optical member made of synthetic quartz glass, and process for its production
    3.
    发明授权
    Optical member made of synthetic quartz glass, and process for its production 失效
    由合成石英玻璃制成的光学元件及其生产工艺

    公开(公告)号:US07784307B2

    公开(公告)日:2010-08-31

    申请号:US11540760

    申请日:2006-10-02

    摘要: To reduce the change in the refractive index of an irradiated portion of synthetic quartz glass, caused by the irradiation with a high energy light emitted from a light source such as a KrF excimer laser or an ArF excimer laser. A process for producing an optical member made of synthetic quartz glass, wherein the OH group concentration of the optical member is set depending upon the energy density of the laser beam employed, to adjust the ratio R (KJ/cm.sup.2-ppb).sup.-1 of the change in the refractive index of the optical member to the cumulative irradiation energy (KJ/cm.sup.2) by the laser, to be 0.Itoreq.R.Itoreq.0.2, thereby to control the change in the refractive index of the optical member made of synthetic quartz glass by the irradiation with a laser beam to be within a predetermined range.

    摘要翻译: 为了减少由诸如KrF准分子激光器或ArF准分子激光器的光源发射的高能量光的照射引起的合成石英玻璃的照射部分的折射率的变化。 一种制造由合成石英玻璃制成的光学构件的方法,其中根据所使用的激光束的能量密度设置光学构件的OH基浓度,以调节比率R(KJ / cm 2 -Pbb )为1,光学部件的折射率与激光的累积照射能量(KJ / cm 2)的变化为0.Itoreq.R.Itore.0.0,由此控制 通过用激光束照射由合成石英玻璃制成的光学构件的折射率的变化在预定范围内。

    Photomask substrate made of synthetic quartz glass and photomask
    5.
    发明授权
    Photomask substrate made of synthetic quartz glass and photomask 有权
    由合成石英玻璃和光掩模制成的光掩模基板

    公开(公告)号:US07491475B2

    公开(公告)日:2009-02-17

    申请号:US11478612

    申请日:2006-07-03

    IPC分类号: G03F1/00

    摘要: It is to provide a photomask substrate which has a low birefringence and with which polarized illumination can be employed or immersion exposure can be carried out.A photomask substrate made of a synthetic quartz glass to be used for production of a semiconductor employing a light source having an exposure wavelength of at most about 200 nm, which has a birefringence of at most 1 nm/6.35 mm at the exposure wavelength, and of which the amount of decrease in light transmittance is at most 1.0% as a difference in light transmittance at a wavelength of 217 nm, between before and after irradiation with Xe excimer lamp with an illuminance of 13.2 mW/cm2 for 20 minutes.

    摘要翻译: 提供一种具有低双折射率的光掩模衬底,并且可以采用偏振照明或可以进行浸没曝光。 一种由合成石英玻璃制成的光掩模基板,用于生产在曝光波长处具有至多1nm / 6.35mm的双折射的具有至多约200nm的曝光波长的光源的半导体,以及 在照射为13.2mW / cm 2的Xe准分子灯照射20分钟之前和之后,在217nm波长下的透光率差为1.0%以下。

    Optical member made of synthetic quartz glass, and process for its production
    6.
    发明申请
    Optical member made of synthetic quartz glass, and process for its production 失效
    由合成石英玻璃制成的光学元件及其生产工艺

    公开(公告)号:US20070027018A1

    公开(公告)日:2007-02-01

    申请号:US11540760

    申请日:2006-10-02

    IPC分类号: C03C3/04 C03B5/26 C03C15/00

    摘要: To reduce the change in the refractive index of an irradiated portion of synthetic quartz glass, caused by the irradiation with a high energy light emitted from a light source such as a KrF excimer laser or an ArF excimer laser. A process for producing an optical member made of synthetic quartz glass, wherein the OH group concentration of the optical member is set depending upon the energy density of the laser beam employed, to adjust the ratio R (KJ/cm2-ppb)−1 of the change in the refractive index of the optical member to the cumulative irradiation energy (KJ/cm2) by the laser, to be 0≦R≦0.2, thereby to control the change in the refractive index of the optical member made of synthetic quartz glass by the irradiation with a laser beam to be within a predetermined range.

    摘要翻译: 为了减少由诸如KrF准分子激光器或ArF准分子激光器的光源发射的高能量光的照射引起的合成石英玻璃的照射部分的折射率的变化。 一种制造由合成石英玻璃制成的光学构件的方法,其中根据所用激光束的能量密度设置光学构件的OH基浓度,以调节比例R(KJ / cm 2)/ 光学构件的折射率与激光的累积照射能量(KJ / cm 2)之间的变化的值为0以上的SUP〜-ppb)为0 <= R <= 0.2,从而通过激光束的照射来控制由合成石英玻璃制成的光学构件的折射率的变化,使其在预定范围内。

    Photomask substrate made of synthetic quartz glass and photomask
    7.
    发明申请
    Photomask substrate made of synthetic quartz glass and photomask 有权
    由合成石英玻璃和光掩模制成的光掩模基板

    公开(公告)号:US20060246363A1

    公开(公告)日:2006-11-02

    申请号:US11478612

    申请日:2006-07-03

    摘要: It is to provide a photomask substrate which has a low birefringence and with which polarized illumination can be employed or immersion exposure can be carried out. A photomask substrate made of a synthetic quartz glass to be used for production of a semiconductor employing a light source having an exposure wavelength of at most about 200 nm, which has a birefringence of at most 1 nm/6.35 mm at the exposure wavelength, and of which the amount of decrease in light transmittance is at most 1.0% as a difference in light transmittance at a wavelength of 217 nm, between before and after irradiation with Xe excimer lamp with an illuminance of 13.2 mW/cm2 for 20 minutes.

    摘要翻译: 提供一种具有低双折射率的光掩模衬底,并且可以采用偏振照明或可以进行浸没曝光。 一种由合成石英玻璃制成的光掩模基板,用于生产在曝光波长处具有至多1nm / 6.35mm的双折射的具有至多约200nm的曝光波长的光源的半导体,以及 在照射为13.2mW / cm 2的Xe准分子灯照射前后,透光率的降低量为217nm波长下的透光率差为1.0%以下, SUP> 20分钟。