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    • 37. 发明授权
    • Oxidation-free copper metallization process using in-situ baking
    • 无氧化铜金属化工艺采用原位烘烤
    • US08470390B2
    • 2013-06-25
    • US11972785
    • 2008-01-11
    • Yu-Sheng WangShih-Ho LinKei-Wei ChenSzu-An WuYing-Lang Wang
    • Yu-Sheng WangShih-Ho LinKei-Wei ChenSzu-An WuYing-Lang Wang
    • B05D5/12C23C14/00
    • H01L21/76814H01L21/02063H01L21/76828H01L21/76843
    • A method of forming an integrated circuit structure includes providing a substrate; forming a metal feature over the substrate; forming a dielectric layer over the metal feature; and forming an opening in the dielectric layer. At least a portion of the metal feature is exposed through the opening. An oxide layer is accordingly formed on an exposed portion of the metal feature. The method further includes, in a production tool having a vacuum environment, performing an oxide-removal process to remove the oxide layer. Between the step of forming the opening and the oxide-removal process, no additional oxide-removal process is performed to the metal feature outside the production tool. The method further includes, in the production tool, forming a diffusion barrier layer in the opening, and forming a seed layer on the diffusion barrier layer.
    • 形成集成电路结构的方法包括提供基板; 在衬底上形成金属特征; 在金属特征上形成介电层; 并在介电层中形成开口。 金属特征的至少一部分通过开口露出。 相应地,在金属特征的暴露部分上形成氧化物层。 该方法还包括在具有真空环境的生产工具中进行氧化物去除工艺以去除氧化物层。 在形成开口的步骤和氧化物去除工艺之间,对生产工具外部的金属特征没有进行额外的氧化物去除处理。 该方法还包括在生产工具中在开口中形成扩散阻挡层,并在扩散阻挡层上形成种子层。
    • 40. 发明申请
    • Oxidation-Free Copper Metallization Process Using In-situ Baking
    • 使用原位烘烤的无氧铜金属化工艺
    • US20090181164A1
    • 2009-07-16
    • US11972785
    • 2008-01-11
    • Yu-Sheng WangShih-Ho LinKei-Wei ChenSzu-An WuYing-Lang Wang
    • Yu-Sheng WangShih-Ho LinKei-Wei ChenSzu-An WuYing-Lang Wang
    • H05K3/46
    • H01L21/76814H01L21/02063H01L21/76828H01L21/76843
    • A method of forming an integrated circuit structure includes providing a substrate; forming a metal feature over the substrate; forming a dielectric layer over the metal feature; and forming an opening in the dielectric layer. At least a portion of the metal feature is exposed through the opening. An oxide layer is accordingly formed on an exposed portion of the metal feature. The method further includes, in a production tool having a vacuum environment, performing an oxide-removal process to remove the oxide layer. Between the step of forming the opening and the oxide-removal process, no additional oxide-removal process is performed to the metal feature outside the production tool. The method further includes, in the production tool, forming a diffusion barrier layer in the opening, and forming a seed layer on the diffusion barrier layer
    • 形成集成电路结构的方法包括提供基板; 在衬底上形成金属特征; 在金属特征上形成介电层; 并在介电层中形成开口。 金属特征的至少一部分通过开口露出。 相应地,在金属特征的暴露部分上形成氧化物层。 该方法还包括在具有真空环境的生产工具中进行氧化物去除工艺以去除氧化物层。 在形成开口的步骤和氧化物去除工艺之间,对生产工具外部的金属特征没有进行额外的氧化物去除处理。 该方法还包括在生产工具中在开口中形成扩散阻挡层,并在扩散阻挡层上形成种子层