Invention Grant
- Patent Title: Stacked type nonvolatile semiconductor memory device and method of manufacturing same
- Patent Title (中): 堆叠型非易失性半导体存储器件及其制造方法
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Application No.: US12542276Application Date: 2009-08-17
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Publication No.: US08193571B2Publication Date: 2012-06-05
- Inventor: Ryota Katsumata , Masaru Kito , Yoshiaki Fukuzumi , Masaru Kidoh , Hiroyasu Tanaka , Megumi Ishiduki , Yosuke Komori , Hideaki Aochi , Yasuyuki Matsuoka
- Applicant: Ryota Katsumata , Masaru Kito , Yoshiaki Fukuzumi , Masaru Kidoh , Hiroyasu Tanaka , Megumi Ishiduki , Yosuke Komori , Hideaki Aochi , Yasuyuki Matsuoka
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-210109 20080818
- Main IPC: H01L29/10
- IPC: H01L29/10 ; H01L21/336

Abstract:
A stacked body is formed on a silicon substrate by stacking a plurality of insulating films and a plurality of electrode films alternately and through-holes are formed to extend in the stacking direction. Next, gaps are formed between the electrode films using etching the insulating films via the through-holes. Charge storage layers are formed along side faces of the through-holes and inner faces of the gaps, and silicon pillars are filled into the through-holes. Thereby, a nonvolatile semiconductor memory device is manufactured.
Public/Granted literature
- US20100038699A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND METHOD FOR MANUFACTURING SAME Public/Granted day:2010-02-18
Information query
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