Analogue Memory Effects in Metal/ a-Si:H /Metal Thin Film Structures

1993 ◽  
Vol 297 ◽  
Author(s):  
A.J. Snell ◽  
J. Hajto ◽  
M.J. Rose ◽  
I.S. Osborne ◽  
A. Holmes ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Memory Effects ◽  
Ac Conductivities ◽  
Frequency Range ◽  
Broad Frequency Range ◽  
Metal Thin Film ◽  
Silicon Structures ◽  
Memory States

The ac conductivities of non-volatile analogue memory states are measured in electro-formed Cr/p+/V amorphous silicon structures for a broad frequency range (from 0.1 Hz to 32 MHz). The results suggest that the memory action is associated with electronic processes.

Dielectric dispersion of BiFeO3 thin film over a broad frequency range (100 Hz–10 GHz)

2009 ◽  
Vol 94 (2) ◽  
pp. 022907 ◽  
Author(s):  
Xiao-Yu Zhang ◽  
Qing Song ◽  
Feng Xu ◽  
C. K. Ong
Keyword(s):  
Thin Film ◽  
Dielectric Dispersion ◽  
Bifeo3 Thin Film ◽  
Frequency Range ◽  
Broad Frequency Range

The Instability Characteristics of Amorphous Silicon Thin Film Transistors with Various Interfacial and Bulk Defect States

1997 ◽  
Vol 36 (Part 1, No. 10) ◽  
pp. 6226-6229 ◽  
Author(s):  
Huang-Chung Cheng ◽  
Jun-Wei Tsai ◽  
Chun-Yao Huang ◽  
Fang-Chen Luo ◽  
Hsing-Chien Tuan
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistors ◽  
Defect States ◽  
Silicon Thin Film

Amorphous-silicon thin film transistor with two-step exposure process

2000 ◽  
Author(s):  
Pi-Fu Chen ◽  
Jr-Hong Chen ◽  
Dou-I Chen ◽  
HsixgJu Sung ◽  
June-Wei Hwang ◽  
...  
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistor ◽  
Silicon Thin Film ◽  
Exposure Process

Hot-Wire Deposited Amorphous Silicon Thin-Film Transistors

1996 ◽  
Vol 424 ◽  
Author(s):  
R. E. I. Schropp ◽  
K. F. Feenstra ◽  
C. H. M. Van Der Werf ◽  
J. Holleman ◽  
H. Meiling
Keyword(s):  
Thin Film ◽  
Amorphous Silicon ◽  
Thin Film Transistors ◽  
Gate Dielectric ◽  
Chemical Vapor ◽  
Current Crowding ◽  
Hot Wire ◽  
Saturation Regime ◽  
Silicon Thin Film ◽  
Order Of Magnitude

AbstractWe present the first thin film transistors (TFTs) incorporating a low hydrogen content (5 - 9 at.-%) amorphous silicon (a-Si:H) layer deposited by the Hot-Wire Chemical Vapor Deposition (HWCVD) technique. This demonstrates the possibility of utilizing this material in devices. The deposition rate by Hot-Wire CVD is an order of magnitude higher than by Plasma Enhanced CVD. The switching ratio for TFTs based on HWCVD a-Si:H is better than 5 orders of magnitude. The field-effect mobility as determined from the saturation regime of the transfer characteristics is still quite poor. The interface with the gate dielectric needs further optimization. Current crowding effects, however, could be completely eliminated by a H2 plasma treatment of the HW-deposited intrinsic layer. In contrast to the PECVD reference device, the HWCVD device appears to be almost unsensitive to bias voltage stressing. This shows that HW-deposited material might be an approach to much more stable devices.

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