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    • 3. 发明申请
    • PROCESS SEQUENCE FOR REDUCING PATTERN ROUGHNESS AND DEFORMITY
    • 减少模式粗糙度和变形的过程序列
    • US20130309615A1
    • 2013-11-21
    • US13572005
    • 2012-08-10
    • Shinichiro Kawakami
    • Shinichiro Kawakami
    • G03F7/40
    • G03F7/405G03F7/40
    • A method for patterning a substrate with reduced defectivity is described. Once a pattern is formed in a layer of radiation-sensitive material using lithographic techniques, the pattern formed on the substrate is post-treated. The post-treating of the pattern in the layer of radiation-sensitive material is performed to reduce a roughness of the pattern. The post-treating includes performing a treatment process on the pattern to alter a solubility of an exposed surface of the pattern, wherein the treatment process involves performing a first chemical treatment of the pattern using a liquid-phase chemical solution containing a first surfactant, or exposing said pattern to second EM radiation different than said first EM radiation. Following the treatment process, the post-treating includes hard baking the pattern, and performing a second chemical treatment of the pattern using a vapor-phase chemical solution to reduce the roughness.
    • 描述了具有降低的缺陷率来图案化衬底的方法。 一旦使用光刻技术在辐射敏感材料层中形成图案,则在基底上形成的图案被后处理。 执行辐射敏感材料层中的图案的后处理以减小图案的粗糙度。 后处理包括对图案进行处理处理以改变图案的暴露表面的溶解度,其中处理过程涉及使用含有第一表面活性剂的液相化学溶液进行图案的第一化学处理,或 将所述图案暴露于与所述第一EM辐射不同的第二EM辐射。 在处理过程之后,后处理包括硬烘烤图案,并且使用气相化学溶液进行图案的第二化学处理以降低粗糙度。
    • 4. 发明授权
    • Process sequence for reducing pattern roughness and deformity
    • 减少图案粗糙度和畸形的工艺顺序
    • US09097977B2
    • 2015-08-04
    • US13572005
    • 2012-08-10
    • Shinichiro Kawakami
    • Shinichiro Kawakami
    • G03F7/20G03F7/40
    • G03F7/405G03F7/40
    • A method for patterning a substrate with reduced defectivity is described. Once a pattern is formed in a layer of radiation-sensitive material using lithographic techniques, the pattern formed on the substrate is post-treated. The post-treating of the pattern in the layer of radiation-sensitive material is performed to reduce a roughness of the pattern. The post-treating includes performing a treatment process on the pattern to alter a solubility of an exposed surface of the pattern, wherein the treatment process involves performing a first chemical treatment of the pattern using a liquid-phase chemical solution containing a first surfactant, or exposing said pattern to second EM radiation different than said first EM radiation. Following the treatment process, the post-treating includes hard baking the pattern, and performing a second chemical treatment of the pattern using a vapor-phase chemical solution to reduce the roughness.
    • 描述了具有降低的缺陷率来图案化衬底的方法。 一旦使用光刻技术在辐射敏感材料层中形成图案,则在基底上形成的图案被后处理。 执行辐射敏感材料层中的图案的后处理以减小图案的粗糙度。 后处理包括对图案进行处理处理以改变图案的暴露表面的溶解度,其中处理过程涉及使用含有第一表面活性剂的液相化学溶液进行图案的第一化学处理,或 将所述图案暴露于与所述第一EM辐射不同的第二EM辐射。 在处理过程之后,后处理包括硬烘烤图案,并且使用气相化学溶液进行图案的第二化学处理以降低粗糙度。
    • 5. 发明申请
    • MULTIPLE CHEMICAL TREATMENT PROCESS FOR REDUCING PATTERN DEFECT
    • 用于减少图案缺陷的多种化学处理方法
    • US20130040246A1
    • 2013-02-14
    • US13206441
    • 2011-08-09
    • Shinichiro KAWAKAMI
    • Shinichiro KAWAKAMI
    • G03F7/40B05C13/00B05C9/08
    • G03F7/40G03F7/3021H01L21/6715
    • A method and system for patterning a substrate with reduced defectivity is described. Once a pattern is formed in a layer of radiation-sensitive material using lithographic techniques, the substrate is rinsed to remove residual developing solution and/or other material. Thereafter, a first chemical treatment is performed using a first chemical solution, and a second chemical treatment is performed using a second chemical solution, wherein the second chemical solution has a different chemical composition than the first chemical solution. In one embodiment, the first chemical solution is selected to reduce pattern collapse, and the second chemical solution is selected to reduce pattern deformity, such as line edge roughness (LER) and/or line width roughness (LWR).
    • 描述了一种用于使缺陷度降低的衬底图案化的方法和系统。 一旦使用光刻技术在辐射敏感材料层中形成图案,则冲洗基底以除去残余的显影溶液和/或其它材料。 此后,使用第一化学溶液进行第一化学处理,并且使用第二化学溶液进行第二化学处理,其中第二化学溶液具有与第一化学溶液不同的化学组成。 在一个实施方案中,选择第一化学溶液以减少图案塌陷,并且选择第二化学溶液以减少图案变形,例如线边缘粗糙度(LER)和/或线宽粗糙度(LWR)。