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    • 1. 发明申请
    • 位相シフトマスク及び当該位相シフトマスクを用いたレジストパターン形成方法
    • 相移片掩模和使用相移片掩模形成电阻图案的方法
    • WO2013122220A1
    • 2013-08-22
    • PCT/JP2013/053733
    • 2013-02-15
    • 大日本印刷株式会社
    • 木下 一樹飛田 敦
    • G03F1/34G03F7/20
    • G03F1/34
    •  従来の画像表示装置製造用露光装置を用い、透明基板等の被加工材上に、当該露光装置の解像限界未満の寸法を有する所定のレジストパターンを高精度で形成することのできる位相シフトマスク及び当該位相シフトマスクを用いたレジストパターン形成方法を提供する。露光装置の解像限界未満の設計寸法のレジストパターン形成用位相シフトマスクは、透明基板と、露光装置からの露光光に所定の位相差を付与する位相シフト部と、位相シフト部に隣接する非位相シフト部とを備え、位相シフト部及び非位相シフト部のうちの少なくともいずれか一方が露光装置の解像限界未満の寸法であり、かつ位相シフト部の寸法と非位相シフト部の寸法とが異なり、透明基板上における位相シフト部及び非位相シフト部を含むパターン領域の大きさが一辺300mm以上であり、少なくともパターン領域内に露光装置の解像限界未満の寸法の遮光部を有しない。
    • 提供一种相移掩模和使用相移掩模形成抗蚀剂图案的方法,该相移掩模能够以高精度的材料形成尺寸小于曝光装置的分辨率极限的规定抗蚀剂图案 通过使用传统的用于制造图像显示装置的曝光装置来处理诸如透明基板。 用于形成设计尺寸小于曝光装置的分辨率极限的抗蚀剂图案的相移掩模具有:透明基板; 相移部,用于对来自曝光装置的曝光光施加规定的相位差; 以及与相移部分相邻的非相移部分。 相移部分或非相移部分中的至少一个具有小于曝光装置的分辨率极限的尺寸,并且相移部分和非相移部分的尺寸是相互不同的。 包括透明基板上的相移部分和非相移部分的图案区域的一侧为300mm以上。 尺寸小于曝光装置的分辨率极限的遮光部分至少不包括在图案区域中。
    • 2. 发明申请
    • A METHOD FOR FABRICATING RETICLES
    • 一种制备抗菌剂的方法
    • WO02054151A3
    • 2003-03-06
    • PCT/US0147142
    • 2001-11-13
    • UNIV CALIFORNIASTEARNS DANIEL GSWEENEY DONALD WMIRKARIMI PAUL B
    • STEARNS DANIEL GSWEENEY DONALD WMIRKARIMI PAUL B
    • G03F1/24G03F1/34G03F1/14G02B5/08G03F1/00
    • G03F1/34B82Y10/00B82Y40/00G03F1/24
    • Absorber material used in conventional EUVL reticles is eliminated by introducing a direct modulation in the complex-valued reflectance of the multilayer. A spatially localized energy source such as a focused electron or ion beam directly writes a reticle pattern onto the reflective multilayer coating. Interdiffusion is activated within the film by an energy source that causes the multilayer period to contract in the exposed regions. The contraction is accurately determined by the energy dose. A controllable variation in the phase and amplitude of the reflected field in the reticle plane is produced by the spatial modulation of the multilayer period. This method for patterning an EUVL reticle has the advantages of (1) avoiding the process steps associated with depositing and patterning an absorber layer and (2) providing control of the phase and amplitude of the reflected field with high spatial resolution.
    • 通过在多层复数值的反射率中引入直接调制来消除用于常规EUVL标线的吸收材料。 诸如聚焦电子或离子束的空间局部化能源直接将掩模版图案写到反射多层涂层上。 相互扩散在膜内被能量源激活,导致多层周期在暴露区域中收缩。 收缩准确地由能量剂量确定。 通过多层周期的空间调制产生光罩平面中反射场的相位和幅度的可控变化。 用于图案化EUVL掩模版的方法具有以下优点:(1)避免与沉积和图案化吸收层相关的工艺步骤,以及(2)以高空间分辨率提供对反射场的相位和幅度的控制。
    • 6. 发明申请
    • METHOD TO PRODUCE A STRUCTURED TRANSMISSIVE OPTICAL ELEMENT
    • WO2022069019A1
    • 2022-04-07
    • PCT/EP2020/077217
    • 2020-09-29
    • CARL ZEISS SMT GMBHASML NETHERLANDS B.V.
    • SCHMITT, JanQUINTANILHA, RichardWEGE, Stephan
    • G03F1/34G02B5/18
    • To produce a structured transmissive optical element, a blank (6) of trans- missive optical material is provided and coated with a chrome layer (7) which itself is coated with a hard mask layer (8). The chrome and hard mask layer coated blank (6) then is coated with a resist which is exposed to a structurized beam. The resist is developed and portions of the developed resist are removed according to the structurized exposition. The hard mask layer (8) is etched via the removed portions of the resist with a hard mask etching process gas which is oxygen-free and chlorine-free. Via such etch- ing, portions of the hard mask layer (8) are removed at positions which cor- respond to the positions of the removed portions of the resist. In a compa- rable manner, the chrome layer (7) is etched via a chrome etching process gas containing oxygen and/or chlorine. Again in a comparable manner, the blank (6) is etched via removed portions of the chrome layer (7) with an oxygen-free and chlorine-free blank etching process gas (13) to remove portions of the blank (6) at positions which correspond to the positions of the removed portions of the chrome layer (7). In a last step, the remaining hard mask and chrome layer portions (8, 7) are removed from the etched blank (6). With such method, a structured transmissive optical element having a well-defined pattern structure with high definition and resolution can be produced.
    • 10. 发明申请
    • METHOD FOR FABRICATING CHIRPED FIBER BRAGG GRATINGS
    • 用于制作纤维布条纹的方法
    • WO03046628A8
    • 2004-04-29
    • PCT/US0226951
    • 2002-08-22
    • PHOTRONICS INC
    • UNRUH JAMES OWEN
    • G02B6/02G03F1/34G03F7/00G02B6/34
    • G02B6/02085G02B6/02138G03F1/34G03F7/0005
    • A chirped Bragg grating is fabricated in an optical fiber by exposing the fiber to a coherent beam of light through a parallel phase mask having a series of progressively chirped segments produced on a lithography tool. The chirped phase mask is fabricated by exposing a photoresist-coated substrate to an image writing element such as an electron beam or a laser according to a set of parameters provided to the lithography tool. The parameters include a basic grating pattern for each segment, a value that defines the expansion or contraction of the grating pattern and an axis location to which the grating pattern is to be written to the substrate. By selecting machine commands that implement these parameters with a minimum throughput overhead, the mask can be produced in a reduced time, and therefore with increased accuracy .
    • 通过在光刻工具上产生的具有一系列逐渐啁啾线段的平行相位掩模将光纤暴露于相干光束,在光纤中制造啁啾布拉格光栅。 通过根据提供给光刻工具的一组参数将光致抗蚀剂涂覆的基板暴露于诸如电子束或激光器的图像写入元件来制造啁啾相位掩模。 参数包括每个段的基本光栅图案,限定光栅图案的扩展或收缩的值以及将光栅图案写入基板的轴位置。 通过选择以最小吞吐量开销来实现这些参数的机器命令,可以在减少的时间内产生掩模,因此可以提高精度。