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Improved Operation Characteristics for Nonvolatile Charge-Trapping Memory Capacitors with High-κ Dielectrics and SiGe Epitaxial Substrates
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作者 Zhao-Zhao Hou Gui-Lei Wang +4 位作者 Jin-Juan Xiang Jia-Xin Yao Zhen-Hua Wu Qing-Zhu Zhang Hua-Xiang Yin 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第9期95-99,共5页
A novel high-κ~ A1203/HfO2/AI203 nanolaminate charge trapping memory capacitor structure based on SiGe substrates with low interface densities is successfully fabricated and investigated. The memory capacitor exhibit... A novel high-κ~ A1203/HfO2/AI203 nanolaminate charge trapping memory capacitor structure based on SiGe substrates with low interface densities is successfully fabricated and investigated. The memory capacitor exhibits excellent program-erasable characteristics. A large memory window of ~4 V, a small leakage current density of ~2 ×10-6 Acre-2 at a gate voltage of 7V, a high charge trapping density of 1.42 × 1013 cm-2 at a working vo]tage of 4-10 V and good retention characteristics are observed. Furthermore, the programming (△ VFB = 2.8 V at 10 V for 10μs) and erasing speeds (△VFB =-1.7 V at -10 V for 10μs) of the fabricated capacitor based on SiGe substrates are significantly improved as compared with counterparts reported earlier. It is concluded that the high-κ Al2O3/HfO2/Al2O3 nanolaminate charge trapping capacitor structure based on SiGe substrates is a promising candidate for future nano-scaled nonvolatile flash memory applications. 展开更多
关键词 Dielectrics and SiGe Epitaxial Substrates improved Operation characteristics for Nonvolatile Charge-Trapping Memory Capacitors with High
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Improvement of Operation Characteristics for MONOS Charge Trapping Flash Memory with SiGe Buried Channel
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作者 Zhao-Zhao Hou Gui-Lei Wang +2 位作者 Jia-Xin Yao Qing-Zhu Zhang Hua-Xiang Yin 《Chinese Physics Letters》 SCIE CAS CSCD 2018年第5期110-114,共5页
We propose and investigate a novel metal/SiO_2/Si_3N_4/SiO_2/SiGe charge trapping flash memory structure(named as MONOS), utilizing Si Ge as the buried channel. The fabricated memory device demonstrates excellent pr... We propose and investigate a novel metal/SiO_2/Si_3N_4/SiO_2/SiGe charge trapping flash memory structure(named as MONOS), utilizing Si Ge as the buried channel. The fabricated memory device demonstrates excellent programerasable characteristics attributed to the fact that more carriers are generated by the smaller bandgap of Si Ge during program/erase operations. A flat-band voltage shift 2.8 V can be obtained by programming at +11 V for 100 us. Meanwhile, the memory device exhibits a large memory window of ~7.17 V under ±12 V sweeping voltage, and a negligible charge loss of 18% after 104 s' retention. In addition, the leakage current density is lower than 2.52 × 10^(-7) A·cm^(-2) below a gate breakdown voltage of 12.5 V. Investigation of leakage current-voltage indicates that the Schottky emission is the predominant conduction mechanisms for leakage current. These desirable characteristics are ascribed to the higher trap density of the Si_3N_4 charge trapping layer and the better quality of the interface between the SiO_2 tunneling layer and the Si Ge buried channel. Therefore, the application of the Si Ge buried channel is very promising to construct 3 D charge trapping NAND flash devices with improved operation characteristics. 展开更多
关键词 FB Improvement of Operation characteristics for MONOS Charge Trapping Flash Memory with SiGe Buried Channel
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Hybridization between salt resistant and salt susceptible genotypes of mungbean(Vigna radiata L.Wilczek)and purity testing of the hybrids using SSRs markers 被引量:3
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作者 Sehrawat Nirmala Yadav Mukesh +2 位作者 Bhat Kangila Venkataraman Sairam Raj Kumar Jaiwal Pawan Kumar 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2016年第3期521-527,共7页
Six cultivated and two wild genotypes of mungbean(Vigna radiata L. Wilczek) possessing variation for phenotypic and genotypic response for salt tolerance were hybridized. Hybridization results showed successful pod ... Six cultivated and two wild genotypes of mungbean(Vigna radiata L. Wilczek) possessing variation for phenotypic and genotypic response for salt tolerance were hybridized. Hybridization results showed successful pod set and significant variations in cross-compatibility of investigated genotypes. Genotypes PLM 380 and PLM 562 showed promising combining ability with all genotypes. Results revealed significant crossing compatibility between V. radiata and V. sublobata. The cross ability ranged from 1.99 to 5.12%(average 3.08%). Molecular analysis confirmed the hybrids purity. All F_1 seeds were bold, green/shiny green and germinated between 3 to 5 days. Hybrid plants were normal, fertile and healthier over their respective progenitors. Uniform flowering and maturity of the hybrids showed absence of any defect or alteration in plant habit and life cycle of the hybrids. The hybrid plants showed increase in yield characteristics as no. of pods, pod length, 100 seeds weight, and yield per plant. Number of pods containing F_2 seeds ranged from 5–8 per cluster. The F_2 seeds were collected and stored for further research. Present study suggests that salt resistant wild relatives or cultivars of mungbean can be explored by breeding as a source of useful traits/genes providing salt tolerance. This may help in development of best mungbean variety for saline prone areas. Micro-satellite markers linked to the trait/genes may assist breeding by early selection of the genotypes compared to the phenotypic screening. 展开更多
关键词 mungbean salinity stress breeding hybrid purity improved characteristics
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Study on Quality Improvement Effect and Separate Character of Soybean Male Sterile (MS1) Recurrent Selection Population 被引量:2
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作者 ZHAO Shuang-jin ZHANG Meng-chen JIANG Chun-zhi YANG Chun-yan LIU Bing-qiang CUI Jue 《Agricultural Sciences in China》 CAS CSCD 2007年第5期545-551,共7页
To solve the problem that soybean has narrow genetic base, we constructed a series of male sterile recurrent selection populations, and studied the effects of quality improvement and practical value. An LD-base popula... To solve the problem that soybean has narrow genetic base, we constructed a series of male sterile recurrent selection populations, and studied the effects of quality improvement and practical value. An LD-base population, which fits to our ecology type was constructed by 6 years' gene enrichment through the introduction of new genes from 23 local varieties and recurrent selection. The LD-base populations were then improved by making crosses with high protein and high oil genotypes. As a result we obtained a high protein sub-population (db) and a high oil sub-population (gy), For the db sub-population, the protein content is 1.18% higher than the base population, 22.38% of the individuals contain 45% or more of protein, which is 10.99% higher than the base population. For the gy sub-population, oil content is 0.24% higher than the base population. Individuals with oil content of 20% or more are 11.05% higher than the base population. The quantitative characters such as flowering date, mature date, pod habit, and hilum color, etc., all showed wide range of separation, and the segregation ratio approached balance. The c.v. of branch number of ms1 recurrent population (72.8%) is higher than general cross-population (57.3%), and the c.v. of 100 seed weight of ms1 (18.1%) is higher than general cross population (16.5%), the coefficient of variation of plant height, pods per plant, and seeds per pod were not significantly different. It was demonstrated in this paper that the quality character of ms 1 male sterile recurrent selection population was improved by adding new genes. And the segregation of other characters widened, making the populations suitable for the objective of soybean breeding. In this paper, we also discussed the breeding method, key technology, and selection effect of soybean ms 1 population. 展开更多
关键词 SOYBEAN recurrent selection population ms 1 gene quality improvement segregating characteristics
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Morphological and physiological traits of large-panicle rice varieties with high filled-grain percentage 被引量:7
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作者 MENG Tian-yao WEI Huan-he +6 位作者 LI Chao DAI Qi-gen XU Ke HUO Zhong-yang WEI Hai-yan GUO Bao-wei ZHNAG Hong-cheng 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2016年第8期1751-1762,共12页
financed by the Special Program of Super Rice of Ministry of Agriculture, China (02318802013231);the National Public Services Sectors (Agricultural) Research Projects, Ministry of Agriculture, China (201303102);... financed by the Special Program of Super Rice of Ministry of Agriculture, China (02318802013231);the National Public Services Sectors (Agricultural) Research Projects, Ministry of Agriculture, China (201303102);the Great Technology Project of Ningbo, China (2013C11001) 展开更多
关键词 large-panicle varieties improved filling efficiency morphological and physiological traits grain filling characteristics
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An improved single-π equivalent circuit model for on-chip inductors in GaAs process 被引量:1
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作者 Hansheng Wang Weiliang He +1 位作者 Minghui Zhang Lu Tang 《Journal of Semiconductors》 EI CAS CSCD 2017年第11期91-96,共6页
An improved single-π equivalent circuit model for on-chip inductors in the GaAs process is presented in this paper. Considering high order parasites, the model is established by comprising an improved skin effect bra... An improved single-π equivalent circuit model for on-chip inductors in the GaAs process is presented in this paper. Considering high order parasites, the model is established by comprising an improved skin effect branch and a substrate lateral coupling branch. The parameter extraction is based on an improved characteristic function approach and vector fitting method. The model has better simulation than the previous work over the measured data of 2.5r and 4.5r on-chip inductors in the GaAs process. 展开更多
关键词 on-chip inductors GaAs process equivalent circuit model substrate lateral coupling branch improved characteristic function approach vector fitting
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The viability of using gasoline-integrated biodiesel-diesel mixtures in engines as a solution to greenhouse gas emissions:a review
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作者 Mohammad Zandie Hoon Kiat Ng +2 位作者 Suyin Gan Mohd Farid Muhamad Said Xinwei Cheng 《Clean Energy》 EI 2022年第6期848-868,共21页
The implementation of alternative fuels,such as biodiesel,in engines has been shown to be a feasible strategy to control greenhouse gas(GHG)emissions.The blending of biodiesel with diesel can reduce emissions of carbo... The implementation of alternative fuels,such as biodiesel,in engines has been shown to be a feasible strategy to control greenhouse gas(GHG)emissions.The blending of biodiesel with diesel can reduce emissions of carbon monoxide(CO)and carbon dioxide and reduce soot formation.Nonetheless,biodiesel combustion comes with low thermal efficiency,elevated emissions of nitrogen oxides(NOx)and carbon deposition issues.Recently,the addition of gasoline to diesel-biodiesel blends has been proposed to compensate for the downsides of biodiesel combustion.In the current review,the viability of using this ternary fuel blend in engines is thoroughly reviewed.The review first assesses the environmental and health issues caused by conventional fuels,mitigation schemes to control GHG emissions and alternative fuels as a decarbonizing technology.The combustion and emissions characteristics of diesel-bio-diesel-gasoline mixtures are discussed in detail.Finally,the status,challenges and prospects of applying the alternative fuel mixture in engines are appraised.This work has revealed that the mixing of gasoline with diesel-biodiesel blends brings about elongated ignition delay,increased heat release rate and in-cylinder pressure at high loads.Additionally,by adding gasoline,the combustion duration is shortened and soot,CO and unburned hydrocarbon emissions are suppressed,while NOx emissions are slightly increased.Combustion stability is found to be partially disrupted in the presence of gasoline whereas fuel economy(at medium and high loads)is improved by the addition of gasoline.To support the wider deployment and commercialization of this fuelling strategy in the transportation sector,favourable legislation and/or fiscal incentives are needed in countries around the world.This would encourage researchers,fuel producers and engine manufacturers alike to solve challenges such as biodiesel feedstock costs,fuel quality,fuel storage management and engine warranty issues. 展开更多
关键词 biodiesel-diesel-gasoline blends combustion characteristics improvement engine performance enhancement net-zero emissions targets alternative fuels adaptation greenhouse gas control climate change
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