METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE

    公开(公告)号:US20240373621A1

    公开(公告)日:2024-11-07

    申请号:US18627685

    申请日:2024-04-05

    Abstract: In a method for manufacturing a semiconductor device, comprising; forming mold insulation patterns on a substrate, forming an oxide semiconductor layer conformally on sidewalls and upper surfaces of the mold insulation patterns and the substrate, forming a first metal oxide layer on the oxide semiconductor layer, patterning the first sacrificial layer, the first metal oxide layer, and the oxide semiconductor layer to form a first structure including a preliminary first metal oxide layer pattern, a preliminary oxide semiconductor layer pattern and a first sacrificial layer pattern stacked, forming a preliminary second metal oxide layer pattern selectively on a sidewall of the preliminary oxide semiconductor layer pattern, removing selective portions of the first structure and the preliminary second metal oxide layer pattern to form an oxide semiconductor layer pattern, a first metal oxide layer pattern, and a second metal oxide layer pattern.

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