发明申请
US20220208603A1 METHOD FOR FORMING SEMICONDUCTOR DEVICE WITH MULTI-LAYER ETCH STOP STRUCTURE
有权
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基本信息:
- 专利标题: METHOD FOR FORMING SEMICONDUCTOR DEVICE WITH MULTI-LAYER ETCH STOP STRUCTURE
- 申请号:US17696393 申请日:2022-03-16
- 公开(公告)号:US20220208603A1 公开(公告)日:2022-06-30
- 发明人: Po-Cheng SHIH , Tze-Liang LEE , Jen-Hung WANG , Yu-Kai LIN , Su-Jen SUNG
- 申请人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 申请人地址: TW Hsinchu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW Hsinchu
- 主分类号: H01L21/768
- IPC分类号: H01L21/768 ; H01L23/532
摘要:
A method for forming a semiconductor device structure is provided. The method includes successively forming a first multi-layer etch stop structure and an insulating layer over a first conductive feature. The insulating layer and the first multi-layer etch stop structure are successively etched to form an opening substantially aligned to the first conductive feature. A second conductive feature is formed in the opening. The formation of the first multi-layer etch stop structure and the second multi-layer etch stop structure includes forming a first metal-containing dielectric layer, forming a silicon-containing dielectric layer over the first metal-containing dielectric layer, and forming a second metal-containing dielectric layer over the silicon-containing dielectric layer. The second metal-containing dielectric layer has a material that is different from the material of the first metal-containing dielectric layer.
公开/授权文献:
IPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01L | 半导体器件;其他类目未包含的电固体器件 |
------H01L21/00 | 专门适用于制造或处理半导体或固体器件或其部件的方法或设备 |
--------H01L21/67 | .专门适用于在制造或处理过程中处理半导体或电固体器件的装置;专门适合于在半导体或电固体器件或部件的制造或处理过程中处理晶片的装置 |
----------H01L21/71 | ..限定在组H01L21/70中的器件的特殊部件的制造 |
------------H01L21/768 | ...利用互连在器件中的分离元件间传输电流 |