Results 81 to 90 of about 27,330 (257)

Modelling of Hfe avalanche degradation in gate controlled bipolar transistors

Revue de Physique Appliquée, 1978
The avalanche degradation phenomenon model presented here takes into account both : an increase of surface recombination rate localized near the initial intrinsic point in the junction transition region surface and a displacement of the intrinsic point due to the oxide injected charge.
Roux, Ph., Dom, J.P., Cazenave, Ph., Nouel, P.   +3 more
openaire   +3 more sources

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

Advanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei, Yue Li, Jiayu Xing, Yue Zhu, Ru Zhang, Huan Wu, Zihao Qin, Gang Pei, Man Li   +8 more
wiley   +1 more source

A compact model for SiGe heterojunction bipolar transistor under AC-stress conditions

Results in Physics
This paper presents a compact model of AC-stress-induced performance degradation in silicon–germanium (SiGe) heterojunction bipolar transistor (HBT) high-frequency amplifiers for circuit-level simulations.
Taeyeong Kim, Kyubeom Kang, Jongho Lee, Junhwa Jeong, Michael A. Oakley, Moon-Kyu Cho, John D. Cressler, Byunghun Lee, Ickhyun Song   +8 more
doaj   +1 more source

Sub‐Terahertz Memristor Switches Using MoS2 by Liquid–Liquid Interface Assembly

Advanced Science, EarlyView.
This work introduces application‐ready sub‐terahertz memristor switches fabricated from electrochemically exfoliated MoS2 nanosheets assembled at a liquid–liquid interface. The devices exhibit robust unipolar resistive switching, low insertion loss, and high isolation across 10–110 GHz.
Tomás Mingates, Mohamed E. Ghatas, Jonas Deuermeier, Adam G. Kelly, Joseph Neilson, Jonathan N. Coleman, Luís Mendes, João C. Vaz, Sérgio Matos, Luca Lucci, Antonio Clemente, Zdeněk Sofer, Luís M. Pessoa, Elvira Fortunato, Rodrigo Martins, Asal Kiazadeh   +15 more
wiley   +1 more source

Reconfigurable Selector‐Only Memory (SOM) for Scalable Neuromorphic Computing

Advanced Science, EarlyView.
ABSTRACT Highly scalable reconfigurable neuromorphic devices are critical for addressing continual‐learning challenges in artificial intelligence. However, the scalability of existing reconfigurable devices is severely constrained by limited operating margins and insufficient process maturity.
Jin‐Yu Wen, Chuan‐Qi Yi, Ya‐Ru Zhang, Bin‐Hao Wang, Zi‐Xuan Liu, Chun‐Yu Zhou, Hao Tong, Xiang‐Shui Miao   +7 more
wiley   +1 more source

Molecularly Engineered Wing‐Shaped Azobenzene Memristors for Logic‐in‐Memory and Edge Visual Intelligence

Advanced Science, EarlyView.
Rational engineering of terminal substituents in symmetric azobenzene‐based molecules enables precise control over conformationally coupled charge‐transfer processes. This design yields tunable nonvolatile resistive memory behaviors, ranging from write‐once‐read‐many‐times (WORM) to rewritable switching.
Yanze Liu, Tao Han, Jiahui Ding, Hong Lian, Lingling Yao, Zhaoxin Xu, Xingyu Zhang, Shuanglong Wang, Jiangnan Xia, Tianchi Zhang, Weiwei Kang, Qingchen Dong   +11 more
wiley   +1 more source

Accelerated degradation of bipolar plates in the PEMFC

, 2016
Åldrandet av bipolära plattor i polymerelektrolytbränslecellen undersöktes med hjälp av olika accelererade nedbrytningstest. Från tidigare studier är det känt att uppstarterna och avstängningarna av denna typ av bränslecell är den främsta orsaken till nedbrytningen av bränslecellskomponenterna.
openaire   +1 more source

Bipolar Palladium Membrane Enabling Crossover‐Free Selective Proton Transport

Advanced Science, EarlyView.
This study introduces a crossover‐free bipolar palladium membrane that transports protons selectively via reversible Pd/PdHx absorption–desorption and lattice hydrogen diffusion, overcoming the conductivity–selectivity trade‐off of polymer membranes. It enables water‐fed Li‐mediated ammonia synthesis, achieving 51% Faradaic efficiency and stable 12 h ...
Jiyeon Baek, Yeongbae Jeon, Seunga Lee, Ahee Choi, Joonmok Shim, Kyungho Lee, Ho Woun Jung, Sun Hyung Kim, Churl Hee Cho, Hyung Chul Yoon, Yun Jeong Hwang, Jae Hyung Kim   +11 more
wiley   +1 more source

A Unified Flash Memory Platform for Mode‐Adaptive and Robust AI Computation

Advanced Science, EarlyView.
A unified AND‐type flash memory platform enables both transistor‐mode and capacitor‐mode computing‐in‐memory operations within the same device structure. By selectively switching the sensing mode through peripheral reconfiguration, the platform provides adaptable trade‐offs between computational accuracy, robustness, and energy efficiency for AI ...
Dayeon Yu, Hwiho Hwang, Byeongchan Oh, Junmo Lee, Shimeng Yu, Tae‐Hyeon Kim, Hyungjin Kim   +6 more
wiley   +1 more source

Optimal Design for Bipolar Reverse-Wound Magnetic Coupler in Wireless Power Transfer Systems Considering Misalignment Tolerance and Wire Consumption

Eng
To address the issue of transmission performance degradation caused by misalignment between the transmitting and receiving coils in wireless power transfer (WPT) systems, the optimal design for a bipolar reverse-wound magnetic coupler is proposed in this
Haiqing Gan, Huiyu Miao, Xiaodong Yuan, Mingshen Wang, Han Liu   +4 more
doaj   +1 more source