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    • 4. 发明公开
    • 비휘발성 메모리 장치의 제조 방법
    • 用于制造非易失性存储器件的方法
    • KR1020130127791A
    • 2013-11-25
    • KR1020120051567
    • 2012-05-15
    • 에스케이하이닉스 주식회사
    • 정성욱이윤경안영수이태화
    • H01L21/8247H01L27/115
    • H01L27/11582H01L29/66833H01L29/7926H01L21/76205H01L21/823487
    • Provided is a method for fabricating a nonvolatile memory device. The method for fabricating the nonvolatile memory device according to one embodiment of the present invention includes a step for forming a stack structure formed by alternately laminating sacrificial layers and interlayer dielectrics, a step for forming a first hole exposing the substrate by selectively etching the stack structure; a step for burying the first hole with a first insulating layer; a step for forming a second hole exposing the substrate by selectively etching the first insulating layer; a step for forming a channel layer in the second hole; a step for removing the exposed sacrificial layers after forming a slit exposing the sacrificial layers in the stack structure; a step for forming a groove by removing the first insulating layer exposed by the removal of the sacrificial layer until the sidewall of the second hole is exposed; and a step for forming a gate electrode touching the channel layer between memory layers and buried in the groove.
    • 提供一种用于制造非易失性存储器件的方法。 根据本发明的一个实施例的用于制造非易失性存储器件的方法包括用于形成通过交替层叠牺牲层和层间电介质形成的堆叠结构的步骤,通过选择性地蚀刻堆叠结构形成暴露衬底的第一孔的步骤 ; 用第一绝缘层掩埋第一孔的步骤; 用于通过选择性地蚀刻所述第一绝缘层来形成暴露所述衬底的第二孔的步骤; 用于在第二孔中形成沟道层的步骤; 在形成在所述堆叠结构中暴露所述牺牲层的狭缝之后去除所述暴露的牺牲层的步骤; 通过去除通过去除牺牲层暴露的第一绝缘层直到第二孔的侧壁被暴露来形成沟槽的步骤; 以及用于形成接触存储层之间的沟道层并掩埋在沟槽中的栅电极的步骤。