发明申请
- 专利标题: SPLIT GATE NON-VOLATILE MEMORY CELL
- 专利标题(中): 分离门非挥发性记忆细胞
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申请号: US13954205申请日: 2013-07-30
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公开(公告)号: US20150035034A1公开(公告)日: 2015-02-05
- 发明人: BRIAN A. WINSTEAD , Cheong Min Hong , Sung-Taeg Kang , Konstantin V. Loiko , Jane A. Yater
- 申请人: BRIAN A. WINSTEAD , Cheong Min Hong , Sung-Taeg Kang , Konstantin V. Loiko , Jane A. Yater
- 主分类号: H01L29/66
- IPC分类号: H01L29/66 ; H01L29/792
摘要:
A method of making a semiconductor structure uses a substrate having a background doping of a first type. A gate structure has a gate dielectric on the substrate and a select gate layer on the gate dielectric. Implanting is performed into a first portion of the substrate adjacent to a first end with dopants of a second type. The implanting is prior to any dopants being implanted into the background doping of the first portion which becomes a first doped region of the second type. An NVM gate structure has a select gate, a storage layer having a first portion over the first doped region, and a control gate over the storage layer. Implanting at a non-vertical angle with dopants of the first type forms a deep doped region under the select gate. Implanting with dopants of the second type forms a source/drain extension.
公开/授权文献
- US08962416B1 Split gate non-volatile memory cell 公开/授权日:2015-02-24
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