The Basic Tasks in the Development of the Smart Protection Device

Author(s):  
D. A. Stepanova ◽  
V. I. Antonov ◽  
V. A. Naumov ◽  
A. V. Soldatov
Keyword(s):  
Author(s):  
Nobuyuki Wakai ◽  
Yuji Kobira ◽  
Hidemitsu Egawa ◽  
Masayoshi Tsutsumi

Abstract Fundamental consideration for CDM (Charged Device Model) breakdown was investigated with 90nm technology products and others. According to the result of failure analysis, it was found that gate oxide breakdown was critical failure mode for CDM test. High speed triggered protection device such as ggNMOS and SCR (Thyristor) is effective method to improve its CDM breakdown voltage and an improvement for evaluated products were confirmed. Technological progress which is consisted of down-scaling of protection device size and huge number of IC pins of high function package makes technology vulnerable and causes significant CDM stress. Therefore, it is expected that CDM protection designing tends to become quite difficult. In order to solve these problems in the product, fundamental evaluations were performed. Those are a measurement of discharge parameter and stress time dependence of CDM breakdown voltage. Peak intensity and rise time of discharge current as critical parameters are well correlated their package capacitance. Increasing stress time causes breakdown voltage decreasing. This mechanism is similar to that of TDDB for gate oxide breakdown. Results from experiences and considerations for future CDM reliable designing are explained in this report.


2014 ◽  
Vol 8 (1) ◽  
pp. 404-411 ◽  
Author(s):  
Guo Rongyan ◽  
Zhang Honghui

As an important electrical safety protection device in low voltage distribution system, residual current protection device is to protect the insulation line leakage fault; the electric shock of the people plays an important role in fault. From the protection characteristics of residual current protective device to points, those can be divided into, residual current protection device for residual pulsating direct current and residual dc, according to the residual sinusoidal alternating current.


2021 ◽  
Vol 77 (18) ◽  
pp. 1166
Author(s):  
Aaqib Malik ◽  
Syed Zaid ◽  
Alexandros Briasoulis ◽  
Tomo Ando ◽  
Steven Lansman ◽  
...  

2011 ◽  
Vol 464 ◽  
pp. 53-56
Author(s):  
Hai Tao Zhang ◽  
Gang Li

Strong electromagnetic interference occurs when the locomotive was running. Therefore, measurement errors resulted from interference exist when monitoring the rail potential only at single point. This will lead to misoperation of the protection device. An over voltage protection device based on multipoint and multi-strategy was designed. The mathematical model of rail potential distribution was built. Fuzzy neural network and multi-sensor monitoring technology were applied in this design. The emulation analysis demonstrated that the proposed device has better reliability and higher control accuracy than the single strategy approach.


2002 ◽  
Vol 52 (3) ◽  
pp. 517-520 ◽  
Author(s):  
Wolfgang Machold ◽  
Oskar Kwasny ◽  
Peter Eisenhardt ◽  
Alexander Kolonja ◽  
Ewald Bauer ◽  
...  

2021 ◽  
Vol 692 (4) ◽  
pp. 042108
Author(s):  
Zehao Wang ◽  
Wenbo Zhang ◽  
Yukun Qiu ◽  
Xuewei Cao

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