Invention Grant
US06670661B2 Ferroelectric memory cell with diode structure to protect the ferroelectric during read operations
失效
具有二极管结构的铁电存储器单元,用于在读取操作期间保护铁电体
- Patent Title: Ferroelectric memory cell with diode structure to protect the ferroelectric during read operations
- Patent Title (中): 具有二极管结构的铁电存储器单元,用于在读取操作期间保护铁电体
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Application No.: US10046123Application Date: 2002-01-07
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Publication No.: US06670661B2Publication Date: 2003-12-30
- Inventor: Thomas Peter Haneder , Harald Bachhofer
- Applicant: Thomas Peter Haneder , Harald Bachhofer
- Priority: DE19931124 19990706
- Main IPC: H01L2968
- IPC: H01L2968

Abstract:
A memory cell configuration includes, as a memory cell, a ferroelectric transistor having a first gate intermediate layer and a first gate electrode between source/drain regions at the surface of a semiconductor substrate. The first gate intermediate layer contains at least one ferroelectric layer. Beside the first gate intermediate layer, a second gate intermediate layer and a second gate electrode are disposed between the source/drain regions, the second gate intermediate layer containing a dielectric layer. The first gate electrode and the second gate electrode are connected to one another through a diode structure. Strip-type doped well regions are provided in the semiconductor substrate, which well regions run between the source/drain regions of the respective ferroelectric transistor.
Public/Granted literature
- US20020105016A1 Memory cell configuration Public/Granted day:2002-08-08
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