发明授权
US09530790B1 Three-dimensional memory device containing CMOS devices over memory stack structures
有权
在存储器堆叠结构中包含CMOS器件的三维存储器件
- 专利标题: Three-dimensional memory device containing CMOS devices over memory stack structures
- 专利标题(中): 在存储器堆叠结构中包含CMOS器件的三维存储器件
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申请号: US14757572申请日: 2015-12-24
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公开(公告)号: US09530790B1公开(公告)日: 2016-12-27
- 发明人: Zhenyu Lu , Andrew Lin , Johann Alsmeier , Peter Rabkin , Wei Zhao , Wenguang Stephen Shi , Henry Chien , Jian Chen
- 申请人: SANDISK TECHNOLOGIES INC.
- 申请人地址: US TX Plano
- 专利权人: SANDISK TECHNOLOGIES LLC
- 当前专利权人: SANDISK TECHNOLOGIES LLC
- 当前专利权人地址: US TX Plano
- 代理机构: The Marbury Law Group PLLC
- 主分类号: H01L29/78
- IPC分类号: H01L29/78 ; H01L27/115 ; H01L23/528 ; H01L29/08 ; H01L29/417 ; G11C16/24 ; G11C16/08 ; H01L23/522 ; H01L29/04 ; H01L29/786 ; H01L29/788 ; H01L21/768 ; H01L21/02 ; H01L21/28
摘要:
Peripheral devices for a three-dimensional memory device can be formed over an array of memory stack structures to increase areal efficiency of a semiconductor chip. First contact via structures and first metal lines are formed over an array of memory stack structures and an alternating stack of insulating layers and electrically conductive layers. A semiconductor material layer including a single crystalline semiconductor material or a polycrystalline semiconductor material is formed over first metal lines. After formation of semiconductor devices on or in the semiconductor material layer, metal interconnect structures including second metal lines and additional conductive via structures are formed to electrically connect nodes of the semiconductor devices to respective first metal lines and to memory devices underneath.
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