SnSe Nanoplates for Photodetectors with a High Signal/Noise Ratio

2021 ◽  
Author(s):  
Han Wang ◽  
Songqing Zhang ◽  
Tingze Zhang ◽  
Junliang Liu ◽  
Zekai Zhang ◽  
...  
Keyword(s):  
High Signal ◽  
Signal Noise ◽  
Noise Ratio

Case Study of Electro-Optical Probing Signal with High Signal-Noise Ratio

2019 ◽  
Author(s):  
Ryan Xiao ◽  
William Wang ◽  
Ang Li ◽  
Shengqiu Xu ◽  
Binghai Liu
Keyword(s):  
Failure Mode ◽  
High Signal ◽  
Signal Noise ◽  
Electrical Failure ◽  
Current Path ◽  
Probing Signal ◽  
Optical Probing ◽  
Noise Ratio ◽  
Case Collection

Abstract With the development of semiconductor technology and the increment quantity of metal layers in past few years, backside EFA (Electrical Failure Analysis) technology has become the dominant method. In this paper, abnormally high Signal Noise Ratio (SNR) signal captured by Electro-Optical Probing (EOP)/Laser Voltage Probing (LVP) from backside is shown and the cause of these phenomena are studied. Based on the real case collection, two kinds of failure mode are summarized, and simulated experiments are performed. The results indicate that when a current path from power to ground is formed, the high SNR signal can be captured at the transistor which was on this current path. It is helpful of this consequence for FA to identify the failure mode by high SNR signal.

Combinatorial Screening of Photoelectrocatalytic System with High Signal/Noise Ratio

2014 ◽  
Vol 86 (24) ◽  
pp. 11972-11976 ◽  
Author(s):  
Ding Yuan ◽  
Lina Xiao ◽  
Jingchun Jia ◽  
Jie Zhang ◽  
Lianhuan Han ◽  
...  
Keyword(s):  
High Signal ◽  
Combinatorial Screening ◽  
Signal Noise ◽  
Noise Ratio

High signal-noise ratio passively mode-locked femtosecond Yb: CaF2 laser at 1034 nm

Optik ◽  
2021 ◽  
pp. 166330
Author(s):  
Jiasai Ma ◽  
Jianxun Pan ◽  
Jing Wang ◽  
Wenguang Jiang ◽  
Zhenmei Yu
Keyword(s):  
High Signal ◽  
Signal Noise ◽  
Noise Ratio

scholarly journals A High Signal–Noise Ratio UWB Radar for Buried Pipe Location Using Golay Complementary Sequences

2019 ◽  
Vol 9 (23) ◽  
pp. 5090 ◽  
Author(s):  
Jingxia Li ◽  
Yang Liu ◽  
Hang Xu ◽  
Bingjie Wang ◽  
Li Liu ◽  
...  
Keyword(s):  
Correlation Method ◽  
Target Position ◽  
Chaotic Signal ◽  
Ultra Wideband ◽  
Projection Algorithm ◽  
High Signal ◽  
Signal Noise ◽  
Complementary Sequences ◽  
Golay Complementary Sequences ◽  
Noise Ratio

A Golay-based ultra wideband ground penetrating for underground pipes location is proposed and experimentally demonstrated. Golay complementary codes with the code length of 1024 and frequency of 1 GHz are used as the probe signals. The two-dimensional image of the buried pipes is achieved by a correlation method and a back-projection algorithm. The experimental results show that both the plastic pipe and metallic pipe can be located with a range resolution of 10 cm. Furthermore, as the Golay complementary sequences are a pair of complementary sequences, the sum of their correlation function yields twice the value of the peak at the target position and zero elsewhere. Thus, compared with the stepped frequency signal radar or chaotic signal radar, the Golay-based radar can significantly improve the signal–noise ratio and has the capability of deep detection.

Spectral imaging of η Carinae

1991 ◽  
Vol 9 (1) ◽  
pp. 120-121 ◽  
Author(s):  
David Allen ◽  
John Hillier
Keyword(s):  
Spatial Resolution ◽  
Wavelength Range ◽  
Massive Star ◽  
Spectral Imaging ◽  
High Signal ◽  
Signal Noise ◽  
Noise Ratio

AbstractWe have secured spectra at high signal/noise ratio in a grid of points across the entire Homunculus Nebula surrounding the peculiar, massive star η Carinae. The data cover the wavelength range 420–1000 nm. Included are parts of the outer nebulosity dating from a prehistoric ejection episode. At a spatial resolution of about 1 arcsec we find dramatic differences in emission Ime ratios and profiles, sometimes in adjacent resolution elements.

Acceleration Sensor in Surface Micromachining for Airbag Applications with High Signal/Noise Ratio

1996 ◽  
Author(s):  
M. Offenberg ◽  
H. Münzel ◽  
D. Schubert ◽  
O. Schatz ◽  
F. Lärmer ◽  
...  
Keyword(s):  
High Signal ◽  
Surface Micromachining ◽  
Acceleration Sensor ◽  
Signal Noise ◽  
Noise Ratio

Signal/Noise Ratio and Elemental Detectivity by Eels

1982 ◽  
Vol 40 ◽  
pp. 488-489
Author(s):  
R. F. Egerton
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Elemental Analysis ◽  
Electron Energy Loss Spectroscopy ◽  
Emission Spectroscopy ◽  
X Ray ◽  
Signal Noise ◽  
Characteristic Signal ◽  
Noise Ratio ◽  
Electron Energy Loss

An important parameter governing the sensitivity and accuracy of elemental analysis by electron energy-loss spectroscopy (EELS) or by X-ray emission spectroscopy is the signal/noise ratio of the characteristic signal.

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