发明名称 |
Nonvolatile memory device and method for fabricating the same |
摘要 |
Provided are a nonvolatile memory device and a method for fabricating the same. The method includes sequentially stacking on a semiconductor substrate a first interlayer dielectric film, a first sacrificial layer, a second interlayer dielectric film, and a second sacrificial layer, forming a resistance variable layer and a first electrode penetrating the first and second interlayer dielectric films and the first and second sacrificial layers, forming an upper trench by removing a top portion of the first electrode, filling the upper trench with a channel layer, exposing a portion of a side surface of the resistance variable layer by removing the second sacrificial layer, forming an insulation layer within the channel layer, and forming a second electrode on the exposed resistance variable layer. |
申请公布号 |
US9159727(B2) |
申请公布日期 |
2015.10.13 |
申请号 |
US201213537588 |
申请日期 |
2012.06.29 |
申请人 |
Samsung Electronics Co., Ltd. |
发明人 |
Park Chan-Jin |
分类号 |
H01L21/02;H01L27/10;H01L27/24;H01L45/00 |
主分类号 |
H01L21/02 |
代理机构 |
Myers Bigel Sibley & Sajovec, PA |
代理人 |
Myers Bigel Sibley & Sajovec, PA |
主权项 |
1. A method for fabricating a nonvolatile memory device, the method comprising:
sequentially stacking on a semiconductor substrate a first interlayer dielectric film, a first sacrificial layer, a second interlayer dielectric film, and a second sacrificial layer; forming a resistance variable layer and a first electrode penetrating the first and second interlayer dielectric films and the first and second sacrificial layers; forming an upper trench by removing a top portion of the first electrode; filling the upper trench with a channel layer; exposing a portion of a side surface of the resistance variable layer by removing the second sacrificial layer; forming an insulation layer within the channel layer; and forming a second electrode on the exposed resistance variable layer. |
地址 |
KR |