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    • 7. 发明授权
    • Method for heat treating synthetic quartz glass for optical use
    • 光学用合成石英玻璃热处理方法
    • US07093465B2
    • 2006-08-22
    • US10297451
    • 2001-05-31
    • Tetsuji UedaHiroyuki NishimuraAkira Fujinoki
    • Tetsuji UedaHiroyuki NishimuraAkira Fujinoki
    • C03C15/00
    • C03C23/007C03B19/1453C03B32/00C03B2201/03Y10S65/90
    • An object of the present invention is to overcome the problems of the prior art technique, and to provide a heat treatment method as well as a heat treatment apparatus capable of heat treating, with higher efficiency, a synthetic quartz glass for optical use having higher homogeneity and higher purity. Another object of the present invention is to provide and a synthetic quartz glass for optical use.The problems above are solved by, in a method for heat treating a flat cylindrical synthetic quartz glass body provided as the object to be heat treated in a heating furnace, a method for heat treating a synthetic quartz glass for optical use comprising preparing a vessel made of quartz glass and having a flat cylindrical space for setting therein the object synthetic quartz glass body, placing two or more object synthetic quartz glass bodies into the vessel in parallel with each other, filling the space with SiO2 powder, setting the vessel inside the heating furnace with its lid closed, and applying the heat treatment to the vessel.
    • 本发明的目的是克服现有技术的问题,提供热处理方法以及能够以更高的效率对具有较高均匀性的光学用合成石英玻璃进行热处理的热处理装置 和更高的纯度。 本发明的另一个目的是提供一种用于光学用途的合成石英玻璃。 上述问题是通过在加热炉中对作为热处理对象的平坦圆筒形合成石英玻璃体进行热处理的方法来解决的,该方法是用于热处理用于光学用途的合成石英玻璃的方法,包括制备容器 的石英玻璃,并且具有平坦的圆柱形空间用于在其中设置物体合成石英玻璃体,将两个或更多个目标合成石英玻璃体彼此平行地放置在容器中,用SiO 2填充空间, 粉末,将容器置于加热炉内并关闭盖子,并对容器进行热处理。
    • 8. 发明申请
    • Optical synthetic quartz glass and method for producing the same
    • 光学合成石英玻璃及其制备方法
    • US20060183622A1
    • 2006-08-17
    • US10548237
    • 2004-03-03
    • Hiroyuki NishimuraAkira Fujinoki
    • Hiroyuki NishimuraAkira Fujinoki
    • C03C3/06C03B37/07C03B37/075C03B37/018
    • C03B32/00C03B19/1453C03B2201/075C03B2201/12C03B2201/21C03B2201/23C03C3/06C03C4/0071C03C2201/12C03C2201/23C03C2203/40C03C2203/42Y02P40/57
    • The present invention provides an optical synthetic quartz glass material which substantially does not cause changes in transmitted wave surface (TWS) by solarization, compaction (TWS delayed), rarefaction (TWS progressed) and photorefractive effect when ArF excimer laser irradiation is applied at a low energy density, e.g. at energy density per pulse of 0.3 mJ/cm2 or less. The present invention further provides a method for manufacturing the same. In order to solve the above-mentioned problems, the optical synthetic quartz glass material of the present invention is characterized in that, in a synthetic quartz glass prepared by a flame hydrolysis method using a silicon compound as a material, the followings are satisfied that the amount of SiOH is within a range of more than 10 ppm by weight to 400 ppm by weight, content of fluorine is 30 to 1000 ppm by weight, content of hydrogen is 0.1×1017 to 10×1017 molecules/cm3 and, when the amounts of SiOH and fluorine are A and B, respectively, total amount of A and B is 100 ppm by weight or more and B/A is 0.25 to 25.
    • 本发明提供了一种光学合成石英玻璃材料,其在低温下施加ArF准分子激光照射时,通过太阳化,压实(TWS延迟),稀释(TWS进行)和光折射效应基本上不会引起透射波面(TWS)的变化 能量密度,例如 每个脉冲的能量密度为0.3mJ / cm 2以下。 本发明还提供一种制造该方法的方法。 为了解决上述问题,本发明的光学合成石英玻璃材料的特征在于,在使用硅化合物作为材料的火焰水解法制备的合成石英玻璃中,满足以下条件: SiOH的量在大于10重量ppm至400重量ppm的范围内,氟含量为30至1000重量ppm,氢含量为0.1×10 17至10 10 17分子/ cm 3,当SiOH和氟的量分别为A和B时,A和B的总量为100重量ppm以上,B / A为 0.25至25。
    • 10. 发明授权
    • Projection aligner for integrated circuit fabrication
    • 用于集成电路制造的投影对准器
    • US6031238A
    • 2000-02-29
    • US29451
    • 1998-02-26
    • Akira FujinokiHiroyuki NishimuraToshiki Mori
    • Akira FujinokiHiroyuki NishimuraToshiki Mori
    • G02B13/14G03F7/20
    • G03F7/701G02B13/14G03F7/70225G03F7/70241G03F7/70958
    • A known projection aligner for integrated circuit fabrication, in which an integrated circuit pattern image is projected on a wafer, comprises an ArF excimer laser and an optical system composed of groups of quartz glass optical members made of synthetic quartz glass. To provide a projection aligner having optical properties, such as durability, optical transmittance and the like, which are not degraded over a long time of operation and the optical system can be constructed at a low cost as a whole, it is suggested that the optical system comprises a first quartz glass optical member group whose hydrogen molecule concentration is in the range between 1.times.10.sup.17 and 5.times.10.sup.18 molecules/cm.sup.3 and a third quartz glass optical member group whose hydrogen molecule concentration is in the range between 5.times.10.sup.18 to 5.times.10.sup.19 molecules/cm.sup.3.
    • PCT No.PCT / EP97 / 03406 Sec。 371日期1998年2月26日 102(e)1998年2月26日PCT 1997年6月30日PCT公布。 出版物WO98 / 00761 日本1998年1月8日在集成电路制造中,集成电路图案投影在晶片上的已知投影对准器包括ArF准分子激光器和由合成石英玻璃制成的石英玻璃光学部件组成的光学系统。 为了提供一种投影对准器,其具有在长时间不劣化的光学性能,例如耐久性,光透射率等,并且光学系统可以以低成本整体构造,因此建议光学 系统包括其氢分子浓度在1×10 17和5×10 18分子/ cm 3之间的第一石英玻璃光学构件组和氢分子浓度在5×1018至5×1019分/ cm 3之间的第三石英玻璃光学构件组。