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    • 6. 发明公开
    • 반도체 집적 회로 장치의 제조 방법과 그에 의해 제조된반도체 집적 회로 장치
    • 制造半导体集成电路器件和半导体集成电路器件的方法
    • KR1020080051623A
    • 2008-06-11
    • KR1020060123086
    • 2006-12-06
    • 삼성전자주식회사
    • 이선우변경래이준영김중현최영문윤홍식
    • H01L21/20B82Y40/00
    • H01L21/76877B82Y40/00H01L21/31116H01L21/31144H01L21/76829H01L21/76871
    • A method for manufacturing a semiconductor integrated circuit device and a semiconductor integrated circuit device by the same are provided to prevent the damage of a catalytic layer by using a buffer layer as an etch stop layer. A lower wire(210), a catalytic layer(220), and a buffer layer(230) are formed in turn on a semiconductor substrate(100). An interlayer dielectric(310) is formed to cover the buffer layer. A contact hole(320) is formed to pass through the interlayer dielectric and to expose a partial upper surface of the buffer layer. The buffer layer exposed by the contact hole is removed to expose the catalytic layer. A carbon nano tube is grown from the catalytic layer exposed by the contact hole to gap-fill the contact hole. The contact hole is formed by performing a dry etching process using the buffer layer as an etch stop layer. The dry etching is performed by using etching gas having an etch selectivity of the interlayer dielectric greater than the buffer layer.
    • 提供一种用于制造半导体集成电路器件的方法及其半导体集成电路器件,以通过使用缓冲层作为蚀刻停止层来防止催化剂层的损坏。 依次在半导体衬底(100)上形成下导线(210),催化层(220)和缓冲层(230)。 形成层间电介质(310)以覆盖缓冲层。 形成接触孔(320)以通过层间电介质并露出缓冲层的部分上表面。 由接触孔暴露的缓冲层被去除以暴露催化层。 从由接触孔暴露的催化剂层生长碳纳米管,以间隙填充接触孔。 通过使用缓冲层作为蚀刻停止层进行干蚀刻工艺来形成接触孔。 通过使用具有比缓冲层大的层间绝缘膜的蚀刻选择性的蚀刻气体来进行干蚀刻。