Invention Grant
- Patent Title: Method and device employing polysilicon scaling
- Patent Title (中): 采用多晶硅结垢的方法和装置
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Application No.: US13294098Application Date: 2011-11-10
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Publication No.: US08637918B2Publication Date: 2014-01-28
- Inventor: Shenqing Fang , Chun Chen , Wenmei Li , Inkuk Kang , Gang Xue , Hyesook Hong
- Applicant: Shenqing Fang , Chun Chen , Wenmei Li , Inkuk Kang , Gang Xue , Hyesook Hong
- Applicant Address: US CA Sunnyvale
- Assignee: Spansion LLC
- Current Assignee: Spansion LLC
- Current Assignee Address: US CA Sunnyvale
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H01L29/792
- IPC: H01L29/792

Abstract:
A memory and method of manufacture employing word line scaling. A layered stack, including a charge trapping component and a core polysilicon layer, is formed on a core section and a peripheral section of a substrate. A portion of the layered stack, including the core polysilicon layer is then removed from the peripheral section. A peripheral polysilicon layer, which is thicker than the core polysilicon layer of the layered stack, is next formed on the layered stack and the peripheral section. The layered stack is then isolated from the peripheral polysilicon layer by removing a portion of the peripheral polysilicon layer from the core section, and polysilicon lines are patterned in the isolated layered stack.
Public/Granted literature
- US20120056260A1 METHOD AND DEVICE EMPLOYING POLYSILICON SCALING Public/Granted day:2012-03-08
Information query
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