Photolithography methods and systems
    61.
    发明授权
    Photolithography methods and systems 失效
    光刻方法和系统

    公开(公告)号:US06982232B2

    公开(公告)日:2006-01-03

    申请号:US10842979

    申请日:2004-05-11

    Abstract: Lithographic methods are disclosed. In one such method, a pulsed ultraviolet radiation source for producing ultraviolet lithography radiation having a wavelength shorter than about 300 nm at a fluence of less than 10 mJ/cm2/pulse and a high purity fused silica lithography glass having a concentration of molecular hydrogen of between about 0.02×1018 molecules/cm3 and about 0.18×1018 molecules/cm3 are provided. A lithography pattern is formed with the ultraviolet lithography radiation; the lithography pattern is reduced to produce a reduced lithography pattern; and the reduced lithography pattern is projected onto a ultraviolet radiation sensitive lithography medium to form a printed lithography pattern. At least one of the forming, reducing, and projecting steps includes transmitting the ultraviolet lithography radiation through the high purity fused silica lithography glass. Lithography systems and high purity fused silica lithography glass are also described.

    Abstract translation: 公开了平版印刷方法。 在一种这样的方法中,用于产生具有小于约300nm的波长的紫外光刻辐射的脉冲紫外辐射源,其注量小于10mJ / cm 2 /脉冲和高纯度熔融石英光刻 分子氢浓度在约0.02×10 18分子/ cm 3至约0.18×10 18分子/ cm 3之间的玻璃 。 用紫外光刻法形成光刻图案; 光刻图案被减少以产生减小的光刻图案; 并且将还原的光刻图案投影到紫外线照射敏感光刻介质上以形成印刷光刻图案。 形成,还原和突出步骤中的至少一个步骤包括通过高纯度熔融石英光刻玻璃传输紫外光刻辐射。 还描述了平版印刷系统和高纯度熔融石英光刻玻璃。

    Adjusting the hydrogen content of a preform for an UV-optical fiber
    64.
    发明授权
    Adjusting the hydrogen content of a preform for an UV-optical fiber 有权
    调整UV光纤的预制件的氢含量

    公开(公告)号:US06622527B2

    公开(公告)日:2003-09-23

    申请号:US10154511

    申请日:2002-05-23

    Abstract: A core glass for making a preform for an optical fiber particularly useful for the transmission of ultraviolet radiation and methods for making the core glass are disclosed. The core glass is obtained by the flame hydrolysis of a silicon compound, deposition of finely granular SiO2 on a substrate with direct vitrification and formation of a synthetic quartz glass. The quartz glass has a hydrogen content of less than 1×1018 molecules/cm3.

    Abstract translation: 公开了一种用于制造用于传输紫外线辐射的特别有用的光纤预制棒的芯玻璃和用于制造芯玻璃的方法。 核心玻璃通过硅化合物的火焰水解获得,通过直接玻璃化沉积细颗粒SiO 2并形成合成石英玻璃。 石英玻璃的氢含量小于1×10 18分子/ cm 3。

    Quartz glass blank for an optical component, and manufacturing procedure and use thereof
    65.
    发明申请
    Quartz glass blank for an optical component, and manufacturing procedure and use thereof 有权
    用于光学部件的石英玻璃坯料及其制造方法和用途

    公开(公告)号:US20030115905A1

    公开(公告)日:2003-06-26

    申请号:US10310349

    申请日:2002-12-05

    Abstract: The present invention relates to a quartz glass blank for an optical component for transmission of ultraviolet radiation of a wavelength of 250 nm or shorter, and to a use of the quartz glass blank in microlithography in combination with ultraviolet radiation of a wavelength of 250 nm or shorter. Moreover, the invention relates to a procedure for manufacture of the quartz glass blank. A quartz glass blank of the described type should show little induced absorption and be optimized with respect to compaction and decompaction. The quartz glass blank according to the invention is characterized by the following properties: a glass structure essentially free of oxygen defect sites, an H2-content in the range of 0.1null1016 molecules/cm3 to 4.0null1016 molecules/cm3, an OH-content in the range of 125 wt-ppm to 450 wt-ppm, an SiH group-content of less than 5null1016 molecules/cm3, a refractive index inhomogeneity, nulln, of less than 2 ppm, and a stress birefringence of less than 2 nm/cm. In the use according to the invention, the quartz glass blank complies with dimensioning rules (2), (3), and (4) in terms of its minimal and maximal hydrogen contents and OH-content, CH2min, CH2max, and COH, respectively, with P being the pulse number and null being the energy density (in mJ/cm2): CH2minnullmolecules/cm3nullnull1null106 null2Pnullnull(2), CH2maxnullmolecules/cm3nullnull2null1018 nullnullnull(3), COHnullwt-ppmnullnull1,700nullnullnullmJ/cm2null0.4null50nullnull(4). The procedure according to the invention is characterized in that a mixed quartz glass is generated from a first and a second quartz glass by mixing the two quartz glasses in the course of a homogenization treatment.

    Abstract translation: 本发明涉及用于传输波长为250nm或更短波长的紫外线辐射的光学部件的石英玻璃坯料,以及微波平版印刷中使用石英玻璃毛坯与波长为250nm的紫外线辐射或 较短 此外,本发明涉及石英玻璃坯料的制造工序。 所述类型的石英玻璃坯料应显示出很少的诱导吸收,并且在压实和分解时优化。 根据本发明的石英玻璃坯料的特征在于以下性质:基本上不含氧缺陷部位的玻璃结构,H 2含量在0.1×10 16分/ cm 3至4.0×10 16分子/ cm 3范围内,OH-含量 125重量ppm至450重量ppm的范围,小于5×10 16分/厘米3的SiH基含量,小于2ppm的折射率不均匀性,DELTAn,应力双折射小于2nm / cm 。 在根据本发明的使用中,石英玻璃空白分别符合其最小和最大氢含量和OH-含量,CH 2 min,CH 2 max和COH的尺寸规则(2),(3)和(4) ,其中P是脉冲数,εi是能量密度(mJ / cm 2):CH 2min [分子/ cm 3] = 1×10 6 epsi 2 P(2),CH 2 max [分子/ cm 3] =2x1018εi(3) ppm] = 1,700xepsi [mJ / cm 2] 0.4±50(4)。 根据本发明的方法的特征在于,通过在均化处理过程中混合两个石英玻璃从第一和第二石英玻璃产生混合石英玻璃。

    Synthetic quartz glass substrate for photomask and making method
    68.
    发明授权
    Synthetic quartz glass substrate for photomask and making method 有权
    用于光掩模和制造方法的合成石英玻璃基板

    公开(公告)号:US06413682B1

    公开(公告)日:2002-07-02

    申请号:US09576006

    申请日:2000-05-22

    Abstract: A synthetic quartz glass substrate is prepared by annealing a synthetic quartz glass member having a higher hydroxyl content in a peripheral portion than in a central portion, machining off the peripheral portion of the member, slicing the member into a plate shaped substrate, chamfering and etching the substrate. The synthetic quartz glass substrate has a minimized birefringence and is suited for use as a photomask in photolithography.

    Abstract translation: 合成石英玻璃基板通过在周边部分比在中心部分退火具有较高羟基含量的合成石英玻璃构件来制备,将构件的周边部分切除,将构件切割成板状基板,倒角和蚀刻 底物。 合成石英玻璃基板具有最小的双折射,并且适合用作光刻中的光掩模。

    Photolithography methods and systems
    69.
    发明申请
    Photolithography methods and systems 失效
    光刻方法和系统

    公开(公告)号:US20020077244A1

    公开(公告)日:2002-06-20

    申请号:US09967841

    申请日:2001-09-27

    Abstract: Lithographic methods are disclosed. In one such method, a pulsed ultraviolet radiation source for producing ultraviolet lithography radiation having a wavelength shorter than about 300 nm at a fluence of less than 10 mJ/cm2/pulse and a high purity fused silica lithography glass having a concentration of molecular hydrogen of between about 0.02null1018 molecules/cm3 and about 0.18null1018 molecules/cm3 are provided. A lithography pattern is formed with the ultraviolet lithography radiation; the lithography pattern is reduced to produce a reduced lithography pattern; and the reduced lithography pattern is projected onto a ultraviolet radiation sensitive lithography medium to form a printed lithography pattern. At least one of the forming, reducing, and projecting steps includes transmitting the ultraviolet lithography radiation through the high purity fused silica lithography glass. Lithography systems and high purity fused silica lithography glass are also described.

    Abstract translation: 公开了平版印刷方法。 在一种这样的方法中,用于产生波长短于约300nm的波长小于10mJ / cm 2 /脉冲的紫外光刻辐射的脉冲紫外辐射源和具有分子氢浓度的高纯度熔融石英光刻玻璃 提供约0.02×10 18分子/ cm 3和约0.18×10 18分子/ cm 3。 用紫外光刻法形成光刻图案; 光刻图案被减少以产生减小的光刻图案; 并且将还原的光刻图案投影到紫外线照射敏感光刻介质上以形成印刷光刻图案。 形成,还原和突出步骤中的至少一个步骤包括通过高纯度熔融石英光刻玻璃传输紫外光刻辐射。 还描述了平版印刷系统和高纯度熔融石英光刻玻璃。

    Optical fiber coupler and optical fiber for optical fiber coupler
    70.
    发明申请
    Optical fiber coupler and optical fiber for optical fiber coupler 有权
    用于光纤耦合器的光纤耦合器和光纤

    公开(公告)号:US20020041737A1

    公开(公告)日:2002-04-11

    申请号:US09964842

    申请日:2001-09-28

    Abstract: In a single mode optical fiber employed in an optical fiber coupler, letting r be the radial distance from the optical axis center, nulln (r) be the relative refractive index difference at the position r within a core portion with reference to the refractive index of a cladding portion placed about the core portion, nullnpeak be the peak value of the relative refractive index difference nulln (r) at the position rpeak, and a be the core radius, the relative refractive index difference nulln (r) satisfies the relationship of nulln (r)nullnullnpeak null1null(r/a)3null in the range of rpeaknullrnulla; and the refractive index of the cladding portion gradually decreases outward in its radial direction.

    Abstract translation: 在光纤耦合器中使用的单模光纤中,使r为距离光轴中心的径向距离,DELTAn(r)为芯部内位置r处的相对折射率差,参照折射率 围绕芯部放置的包覆部分,DELTAnpeak是位置rpeak处的相对折射率差ΔDTAn(r)的峰值,而作为芯部半径,相对折射率差DELTAn(r)满足DELTAn (r)<= DELTAnpeak [1-(r / a)3]在rpeak <= r <= a; 并且包层部的折射率在径向方向上向外逐渐减小。

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