发明申请
- 专利标题: METHOD OF ONO INTEGRATION INTO LOGIC CMOS FLOW
- 专利标题(中): ONO集成到逻辑CMOS流的方法
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申请号: US13434347申请日: 2012-03-29
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公开(公告)号: US20130178030A1公开(公告)日: 2013-07-11
- 发明人: Krishnaswamy Ramkumar , Bo Jin , Fredrick Jenne
- 申请人: Krishnaswamy Ramkumar , Bo Jin , Fredrick Jenne
- 申请人地址: US CA San Jose
- 专利权人: CYPRESS SEMICONDUCTOR CORPORATION
- 当前专利权人: CYPRESS SEMICONDUCTOR CORPORATION
- 当前专利权人地址: US CA San Jose
- 主分类号: H01L21/336
- IPC分类号: H01L21/336
摘要:
An embodiment of a method of integration of a non-volatile memory device into a logic MOS flow is described. Generally, the method includes: forming a pad dielectric layer of a MOS device above a first region of a substrate; forming a channel of the memory device from a thin film of semiconducting material overlying a surface above a second region of the substrate, the channel connecting a source and drain of the memory device; forming a patterned dielectric stack overlying the channel above the second region, the patterned dielectric stack comprising a tunnel layer, a charge-trapping layer, and a sacrificial top layer; simultaneously removing the sacrificial top layer from the second region of the substrate, and the pad dielectric layer from the first region of the substrate; and simultaneously forming a gate dielectric layer above the first region of the substrate and a blocking dielectric layer above the charge-trapping layer.
公开/授权文献
- US09102522B2 Method of ONO integration into logic CMOS flow 公开/授权日:2015-08-11
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