scholarly journals Hardware Transactions in Nonvolatile Memory

2015 ◽  
pp. 617-630 ◽  
Author(s):  
Hillel Avni ◽  
Eliezer Levy ◽  
Avi Mendelson
Keyword(s):  
Nonvolatile Memory

Investigation of ferroelectrics using conventional and in situ electron microscopy

1994 ◽  
Vol 52 ◽  
pp. 586-587
Author(s):  
V. Saikumar ◽  
H. M. Chan ◽  
M. P. Harmer
Keyword(s):  
Nonvolatile Memory ◽  
Ferroelectric Materials ◽  
Gate Insulator ◽  
Sensors And Actuators ◽  
In Situ Electron Microscopy ◽  
Ferroelectric Domains ◽  
Domain Boundaries ◽  
Domain Interactions ◽  
Memory Applications

In recent years, there has been a growing interest in the application of ferroelectric thin films for nonvolatile memory applications and as a gate insulator in DRAM structures. In addition, bulk ferroelectric materials are also widely used as components in electronic circuits and find numerous applications in sensors and actuators. To a large extent, the performance of ferroelectric materials are governed by the ferroelectric domains (with dimensions in the micron to sub-micron range) and the switching of domains in the presence of an applied field. Conventional TEM studies of ferroelectric domains structures, in conjunction with in-situ studies of the domain interactions can aid in explaining the behavior of ferroelectric materials, while providing some answers to the mechanisms and processes that influence the performance of ferroelectric materials. A few examples from bulk and thin film ferroelectric materials studied using the TEM are discussed below.Figure 1 shows micrographs of ferroelectric domains obtained from undoped and Fe-doped BaTiO3 single crystals. The domain boundaries have been identified as 90° domains with the boundaries parallel to <011>.

Epitaxial ferroelectric thin films

1994 ◽  
Vol 52 ◽  
pp. 572-573
Author(s):  
S. G. Ghonge ◽  
E. Goo ◽  
R. Ramesh ◽  
R. Haakenaasen ◽  
D. K. Fork
Keyword(s):  
Single Crystal ◽  
Work Function ◽  
Nonvolatile Memory ◽  
Ferroelectric Properties ◽  
Electrical Contact ◽  
Memory Devices ◽  
Ferroelectric Films ◽  
Si Substrates ◽  
Electro Optic ◽  
Wide Range

Microstructure of epitaxial ferroelectric/conductive oxide heterostructures on LaAIO3(LAO) and Si substrates have been studied by conventional and high resolution transmission electron microscopy. The epitaxial films have a wide range of potential applications in areas such as non-volatile memory devices, electro-optic devices and pyroelectric detectors. For applications such as electro-optic devices the films must be single crystal and for applications such as nonvolatile memory devices and pyroelectric devices single crystal films will enhance the performance of the devices. The ferroelectric films studied are Pb(Zr0.2Ti0.8)O3(PLZT), PbTiO3(PT), BiTiO3(BT) and Pb0.9La0.1(Zr0.2Ti0.8)0.975O3(PLZT).Electrical contact to ferroelectric films is commonly made with metals such as Pt. Metals generally have a large difference in work function compared to the work function of the ferroelectric oxides. This results in a Schottky barrier at the interface and the interfacial space charge is believed to responsible for domain pinning and degradation in the ferroelectric properties resulting in phenomenon such as fatigue.

High Quality HfO2 Film and Its Applications in Novel Poly-Si Devices

2002 ◽  
Vol 716 ◽  
Author(s):  
K.L. Ng ◽  
N. Zhan ◽  
M.C. Poon ◽  
C.W. Kok ◽  
M. Chan ◽  
...  
Keyword(s):  
Barrier Height ◽  
Nonvolatile Memory ◽  
Dielectric Material ◽  
Tunneling Current ◽  
Interface Layer ◽  
Si Substrate ◽  
Hfo2 Film ◽  
Effective Barrier Height ◽  
Effective Barrier ◽  
Nonvolatile Memory Devices

AbstractHfO2 as a dielectric material in MOS capacitor by direct sputtering of Hf in an O2 ambient onto a Si substrate was studied. The results showed that the interface layer formed between HfO2 and the Si substrate was affected by the RTA time in the 500°C annealing temperature. Since the interface layer is mainly composed of hafnium silicate, and has high interface trap density, the effective barrier height is therefore lowered with increased RTA time. The change in the effective barrier height will affect the FN tunneling current and the operation of the MOS devices when it is applied for nonvolatile memory devices.

Modeling of Triangular Sacrificial Layer Residue Effect in Nano-Electro-Mechanical Nonvolatile Memory

2013 ◽  
Vol E96.C (5) ◽  
pp. 714-717
Author(s):  
Woo Young CHOI ◽  
Min Su HAN ◽  
Boram HAN ◽  
Dongsun SEO ◽  
Il Hwan CHO
Keyword(s):  
Nonvolatile Memory ◽  
Sacrificial Layer

The effect of inserted SiO2 thickness on memory characteristics for nonvolatile memory with stacked trapping layer

2020 ◽  
Vol 59 (5) ◽  
pp. 050908
Author(s):  
Zhenjie Tang ◽  
Rong Li ◽  
Xiwei Zhang ◽  
Dan Hu
Keyword(s):  
Nonvolatile Memory ◽  
Memory Characteristics

scholarly journals Memory Devices: Solution‐Processed Stretchable Ag 2 S Semiconductor Thin Films for Wearable Self‐Powered Nonvolatile Memory (Adv. Mater. 23/2021)

2021 ◽  
Vol 33 (23) ◽  
pp. 2170181
Author(s):  
Seungki Jo ◽  
Soyoung Cho ◽  
U Jeong Yang ◽  
Gyeong‐Seok Hwang ◽  
Seongheon Baek ◽  
...  
Keyword(s):  
Thin Films ◽  
Nonvolatile Memory ◽  
Memory Devices ◽  
Solution Processed ◽  
Semiconductor Thin Films ◽  
Self Powered

Solution‐Processed Stretchable Ag 2 S Semiconductor Thin Films for Wearable Self‐Powered Nonvolatile Memory

2021 ◽  
pp. 2100066
Author(s):  
Seungki Jo ◽  
Soyoung Cho ◽  
U Jeong Yang ◽  
Gyeong‐Seok Hwang ◽  
Seongheon Baek ◽  
...  
Keyword(s):  
Thin Films ◽  
Nonvolatile Memory ◽  
Solution Processed ◽  
Semiconductor Thin Films ◽  
Self Powered

Flexible and Printed Organic Nonvolatile Memory Transistor with Bilayer Polymer Dielectrics

2021 ◽  
pp. 2100141
Author(s):  
Woojo Kim ◽  
Jimin Kwon ◽  
Yasunori Takeda ◽  
Tomohito Sekine ◽  
Shizuo Tokito ◽  
...  
Keyword(s):  
Nonvolatile Memory ◽  
Polymer Dielectrics

New Erratic Program Disturbance Mechanism of 2T-SONOS Embedded Nonvolatile Memory

2021 ◽  
Vol 68 (4) ◽  
pp. 1585-1592
Author(s):  
Sung-Kun Park ◽  
Tae-Ho Lee ◽  
Young-Jun Kwon ◽  
Chang-Su Park ◽  
In-Wook Cho ◽  
...  
Keyword(s):  
Nonvolatile Memory
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