发明申请
- 专利标题: METHOD FOR INTEGRATING NVM CIRCUITRY WITH LOGIC CIRCUITRY
- 专利标题(中): 用逻辑电路集成NVM电路的方法
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申请号: US11926348申请日: 2007-10-29
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公开(公告)号: US20090111226A1公开(公告)日: 2009-04-30
- 发明人: Gowrishankar L. Chindalore
- 申请人: Gowrishankar L. Chindalore
- 主分类号: H01L21/8239
- IPC分类号: H01L21/8239
摘要:
A method for integrating Non-Volatile Memory (NVM) circuitry with logic circuitry is provided. The method includes depositing a first layer of gate material over the NVM area and the logic area of the substrate. The method further includes depositing multiple adjoining sacrificial layers comprising nitride, oxide and nitride (ARC layer) overlying each other. The multiple adjoining sacrificial layers are used to pattern select gate and control gate of memory transistor in the NVM area, and the ARC layer of the multiple adjoining sacrificial layers is used to pattern gate of logic transistor in the logic area.
公开/授权文献
- US07745344B2 Method for integrating NVM circuitry with logic circuitry 公开/授权日:2010-06-29
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