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公开(公告)号:US20170062702A1
公开(公告)日:2017-03-02
申请号:US15350009
申请日:2016-11-11
Applicant: Samsung Electronics Co., Ltd.
Inventor: Sungyoon CHUNG , JINHYE BAE , HYUNGJOON KWON , JONGCHUL PARK , WONJUN LEE
Abstract: A method of manufacturing a semiconductor device may include forming a material layer on a substrate, performing a selective oxidation process to form a capping oxide layer on a first surface of the material layer, wherein a second surface of the material layer is not oxidized, and etching the material layer through the second surface to form a material pattern. An etch rate of the capping oxide layer is less than an etch rate of the material layer. A semiconductor device may include a lower electrode on a substrate, a data storage part on a top surface of the lower electrode, an upper electrode on the data storage part, and a capping oxide layer arranged on at least a portion of a top surface of the upper electrode. The capping oxide layer may include an oxide formed by oxidation of an upper surface of the upper electrode.
Abstract translation: 制造半导体器件的方法可以包括在衬底上形成材料层,进行选择性氧化工艺以在材料层的第一表面上形成覆盖氧化物层,其中材料层的第二表面不被氧化,以及 通过第二表面蚀刻材料层以形成材料图案。 覆盖氧化物层的蚀刻速率小于材料层的蚀刻速率。 半导体器件可以包括在基板上的下电极,在下电极的顶表面上的数据存储部分,数据存储部分上的上电极,以及覆盖氧化物层,其设置在 上电极。 覆盖氧化物层可以包括通过氧化上部电极的上表面形成的氧化物。