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    • 3. 发明授权
    • Method of manufacturing dual damascene utilizing anisotropic and
isotropic properties
    • 使用各向异性特性制造双镶嵌的方法
    • US6133140A
    • 2000-10-17
    • US165782
    • 1998-10-02
    • Allen S. YuPaul J. SteffanThomas C. Scholer
    • Allen S. YuPaul J. SteffanThomas C. Scholer
    • H01L21/768H01L21/4763
    • H01L21/76807
    • A method of manufacturing a semiconductor device with dual damascene structures. A first and second layer of interlayer dielectric separated by a first layer of etch stop material is formed on the surface of a semiconductor substrate on and in which active devices have been formed. A second layer of an etch stop material is formed on the surface of the second layer of interlayer dielectric. A layer of photoresist is formed on the second layer of etch stop material and is patterned and etched to expose portions of the second etch stop material. The exposed portions of the second etch stop material are anisotropically etched exposing portions of the second layer of interlayer dielectric. The exposed portions of the second layer of interlayer dielectric are first anisotropically etched and then isotropically etched. The etch stop layer between the first and second interlayer dielectric is anisotropically etched and the first layer of interlayer dielectric is anisotropically etched. The etched portions are then filled with a conductive material.
    • 一种制造具有双镶嵌结构的半导体器件的方法。 在半导体衬底的表面上形成由第一层蚀刻停止材料隔开的第一和第二层间介质层,其中形成了有源器件。 第二层蚀刻停止材料形成在第二层间电介质层的表面上。 在第二层蚀刻停止材料上形成一层光致抗蚀剂,并对其进行图案化和蚀刻以暴露第二蚀刻停止材料的部分。 第二蚀刻停止材料的暴露部分被各向异性蚀刻,暴露第二层间电介质层的部分。 首先对第二层间介电层的暴露部分进行各向异性蚀刻,然后进行各向同性蚀刻。 在第一和第二层间电介质之间的蚀刻停止层被各向异性蚀刻,并且第一层间介电层被各向异性地蚀刻。 然后用导电材料填充蚀刻部分。
    • 4. 发明授权
    • Method to manufacture dual damascene structures by utilizing short
resist spacers
    • 通过利用短抗蚀剂间隔物制造双镶嵌结构的方法
    • US6103616A
    • 2000-08-15
    • US136867
    • 1998-08-19
    • Allen S. YuThomas C. ScholerPaul J. Steffan
    • Allen S. YuThomas C. ScholerPaul J. Steffan
    • H01L21/768H01L21/4763
    • H01L21/76811H01L21/76813
    • A method of manufacturing semiconductor devices wherein a partially completed semiconductor device having a first and second layer of interlayer dielectric and a first and second etch stop layer has the second etch stop layer masked and etched with an etch pattern having dimensions of the trench structure to be formed in the second interlayer dielectric. The second layer dielectric and first etch stop layer are then masked and etched with an etch pattern having dimensions of the via structure to be formed in the first interlayer dielectric. The remaining portions of the photoresist is removed and exposed portions of the second layer of interlayer dielectric and the first layer of interlayer dielectric are then etched simultaneously. The via structure and trench structure are then simultaneously filled with a conductive material.
    • 一种制造半导体器件的方法,其中具有第一和第二层间电介质层和第一和第二蚀刻停止层的部分完成的半导体器件具有用具有沟槽结构尺寸的蚀刻图案被掩蔽和蚀刻的第二蚀刻停止层 形成在第二层间电介质中。 然后用具有要形成在第一层间电介质中的通孔结构的尺寸的蚀刻图案掩蔽和蚀刻第二层电介质和第一蚀刻停止层。 去除光致抗蚀剂的剩余部分,然后同时蚀刻第二层层间电介质层和第一层间电介质层的暴露部分。 然后通孔结构和沟槽结构同时填充导电材料。