发明名称 Single transistor ferroelectric memory cell, device and method for the formation of the same incorporating a high temperature ferroelectric gate dielectric
摘要 A single transistor ("1T") ferroelectric memory cell, device and method for the formation of the same incorporating a high temperature ferroelectric gate dielectric. The memory cell of the present invention comprises a substrate, an overlying ferroelectric layer, which may comprise a film of rare earth manganite, and an interfacial oxide layer intermediate the substrate and the ferroelectric layer. In a preferred embodiment, the ferroelectric material utilized in an implementation of the present invention may be deposited by metallorganic chemical vapor deposition ("MOCVD") or other techniques and exhibits a low relative dielectric permittivity of around 10 and forms an interfacial layer with a relative dielectric permittivity larger than that of SiO<SUB>2</SUB>, which makes it particularly suitable for a 1T cell.
申请公布号 US6908772(B2) 申请公布日期 2005.06.21
申请号 US20030455494 申请日期 2003.06.04
申请人 COVA TECHNOLOGIES, INC. 发明人 GNADINGER ALFRED P.
分类号 G11C11/22;H01L21/02;H01L21/28;H01L21/8234;H01L27/105;H01L27/115;H01L29/51;H01L29/78;(IPC1-7):H01L21/00 主分类号 G11C11/22
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