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    • 20. 发明授权
    • Method for semiconductor wafer planarization by CMP stop layer formation
    • 通过CMP停止层形成的半导体晶片平面化方法
    • US06770523B1
    • 2004-08-03
    • US10190397
    • 2002-07-02
    • Kashmir S. SahotaJeffrey P. ErhardtArvind HalliyalMinh Van NgoKrishnashree Achuthan
    • Kashmir S. SahotaJeffrey P. ErhardtArvind HalliyalMinh Van NgoKrishnashree Achuthan
    • H01L218238
    • H01L21/76229H01L21/31053
    • A method of manufacturing an integrated circuit is provided having a semiconductor wafer. A chemical-mechanical polishing stop layer is deposited on the semiconductor wafer and a first photoresist layer is processed over the chemical-mechanical polishing stop layer. The chemical-mechanical polishing stop layer and the semiconductor wafer are patterned to form a shallow trench and a shallow trench isolation material is deposited on the chemical-mechanical polishing stop layer and in the shallow trench. A second photoresist layer is processed over the shallow trench isolation material leaving the shallow trench uncovered. The uncovered shallow trench is then treated to become a chemical-mechanical polishing stop area. The shallow trench isolation material is then chemical-mechanical polished to be co-planar with the chemical-mechanical stop layer and the chemical-mechanical polishing stop treated area.
    • 提供了具有半导体晶片的集成电路的制造方法。 化学机械抛光停止层沉积在半导体晶片上,并且在化学机械抛光停止层上处理第一光致抗蚀剂层。 化学机械抛光停止层和半导体晶片被图案化以形成浅沟槽,浅沟槽隔离材料沉积在化学机械抛光停止层和浅沟槽中。 在浅沟槽隔离材料上处理第二光致抗蚀剂层,留下未覆盖的浅沟槽。 然后将未覆盖的浅沟槽处理成为化学机械抛光停止区域。 然后将浅沟槽隔离材料进行化学机械抛光以与化学 - 机械停止层和化学 - 机械抛光停止处理区共面。