Invention Grant
- Patent Title: Methods for fabricating flash memory devices
- Patent Title (中): 制造闪存设备的方法
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Application No.: US11412365Application Date: 2006-04-26
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Publication No.: US07696038B1Publication Date: 2010-04-13
- Inventor: Ning Cheng , Kuo-Tung Chang , Hiroyuki Kinoshita , Timothy Thurgate , Wei Zheng , Ashot Melik-Martirosian , Angela Hui , Chih-Yuh Yang
- Applicant: Ning Cheng , Kuo-Tung Chang , Hiroyuki Kinoshita , Timothy Thurgate , Wei Zheng , Ashot Melik-Martirosian , Angela Hui , Chih-Yuh Yang
- Applicant Address: US CA Sunnyvale
- Assignee: Spansion LLC
- Current Assignee: Spansion LLC
- Current Assignee Address: US CA Sunnyvale
- Main IPC: H01L21/8238
- IPC: H01L21/8238

Abstract:
Methods for fabricating flash memory devices are provided. In accordance with an exemplary embodiment of the invention, a method for fabricating a memory device comprises forming a first gate stack and a second gate stack overlying a substrate. A trench is etched into the substrate between the first gate stack and the second gate stack. A first impurity doped region is formed within the substrate underlying the trench.
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