We report the impact of high work-function (Φ<SUB>M</SUB>) metal gate and high-κ dielectrics on memory properties of NAND-type charge trap Flash (CTF) memory devices. In this paper, theoretical and experimental studies show that ...
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https://www.riss.kr/link?id=A107578325
2005
-
SCOPUS,SCIE
학술저널
2654-2659(6쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
We report the impact of high work-function (Φ<SUB>M</SUB>) metal gate and high-κ dielectrics on memory properties of NAND-type charge trap Flash (CTF) memory devices. In this paper, theoretical and experimental studies show that ...
We report the impact of high work-function (Φ<SUB>M</SUB>) metal gate and high-κ dielectrics on memory properties of NAND-type charge trap Flash (CTF) memory devices. In this paper, theoretical and experimental studies show that high Φ<SUB>M</SUB> gate and high permittivity (high-κ) dielectrics play a key role in eliminating electron back tunneling though the blocking dielectric during the erase operation. Techniques to improve erase efficiency of CTF memory devices with a fixed metal gate by employing various chemicals and structures are introduced and those mechanisms are discussed. Though process optimization of high Φ<SUB>M</SUB> gate and high-κ materials, enhanced CTF device characteristics such as high speed, large memory window, and good reliability characteristics of the CTF devices are obtained.