A5101755748- Electronic Packaging and Soldering Technologies
- 3D IC and TSV technologies
- Advanced Thermoelectric Materials and Devices
- Advanced Image and Video Retrieval Techniques
- Thermal properties of materials
- Thermal Radiation and Cooling Technologies
- Image Retrieval and Classification Techniques
- Advanced Photocatalysis Techniques
- Text and Document Classification Technologies
- Visual Attention and Saliency Detection
- Aluminum Alloys Composites Properties
- TiO2 Photocatalysis and Solar Cells
- Electrodeposition and Electroless Coatings
- Advanced materials and composites
- Metallic Glasses and Amorphous Alloys
- Thermal Expansion and Ionic Conductivity
- Sentiment Analysis and Opinion Mining
- Innovative Energy Harvesting Technologies
- Membrane Separation Technologies
- Metallurgical and Alloy Processes
- Water Quality Monitoring Technologies
- Laser Material Processing Techniques
- Recycling and utilization of industrial and municipal waste in materials production
- Surface Modification and Superhydrophobicity
- Genetic and phenotypic traits in livestock
Beijing University of Technology
2007-2023
Qufu Normal University
2023
Hubei Provincial Center for Disease Control and Prevention
2022
Hebei University
2017
Hunan University
2010
In the advanced microelectronic packaging, Cu/Sn joints require high-quality diffusion barriers to inhibit Cu–Sn intermetallic compounds (IMCs) growth and improve interface brittleness. Cobalt-Phosphorous (Co–P) alloy coatings are ideal candidates due their good wettability, promising resistance low interfacial this work, microstructural evolution of IMCs between crystalline/amorphous Co–P lead-free solders during solid-state were systemically investigated. The microstructure, phase...
Deep learning-based visual sentiment analysis requires a large dataset for training. Dataset from social networks is popular but noisy because some images collected in this manner are mislabeled. Therefore, it necessary to refine the dataset. Based on observations such datasets, we propose refinement algorithm based sentiments of adjective-noun pairs (ANPs) and tags. We first determine unreliably labeled through contradiction between ANPs These removed if numbers tags with positive negative...
With the advance of computer technology and smart device, many technologies applications have been developed to enhance efficiency human-computer interaction (HCI). For human, hand is a natural direct way in communication. Hand-held Object Recognition (HHOR), which predict label for object people hold hand, can help machines understanding environment people's intentions. However, it has not well studied community. So, this paper, we proposed novel feature fusion based method hand-held...
In recent years, many excellent text classification models have been proposed by researchers to solve natural language processing tasks. texts, semantic information at different levels and granularities constitutes the multi-dimensional of text, which determines its effect. However, existing several limitations. Firstly, they cannot extract from text. Secondly, determine weight on text's information. To address these limitations, this paper proposes a new deep learning neural network model...
As deformation and defects are inevitable during the manufacture service of graphene resonators, comprehensive molecular dynamic (MD) simulations performed to investigate vibrational properties defective single-layer sheets (SLGSs) tension. Perfect SLGSs, SLGSs with single vacancy, low-concentration vacancies, high-concentration vacancies considered, respectively. The frequencies perfect at different stretching stages investigated in detail. effects external forces also taken into account...
No single retargeting approach performs well on all images and target sizes; therefore, hybrid algorithms are often considered as promising alternatives. However, most schemes time consuming. In this paper, we propose a fast framework in which the Fast Content-Aware Image Distance (FCAID) is used to connect seam carving with neighboring probability constraints (FSc_Neip) scaling. FCAID measure image distance between resized given by FSc_Neip original image. This technique embedded within...
In this paper, the effect of femtosecond laser irradiation on wettability semiconductor materials InAs and GaAs coated with silver film was studied. The experimental results show that material can be transformed from hydrophilic to hydrophobic. Laser power scanning period play a decisive role in morphology micro-nano structures, different structures have hydrophobicity. higher surface roughness is, greater contact angle maximum reach 143°. existence further increases two ways. For samples,...
Abstract With the development of integrated circuits, volume and power consumption electrical equipment have decreased dramatically. As an excellent energy conversion method, piezoelectric harvester can capture vibration environment, so as to realize self-powered supply micro small electronic devices. In this paper, a variable cross-section extended beam structure is considered form harvester. The influence structural parameters on steady-state response analyzed, which improve output voltage...
Brittle Cu-Sn intermetallic compounds (IMCs) are detrimental to the serviceability of solder joints. Cobalt-phosphorus (Co-P) is a coating choice with good diffusion barrier properties. In this work, Co-P coatings 4 at.% and 15 P content representing crystalline amorphous were electroplated onto Cu pad surface, formed Cu/Co-P/Sn-Ag/Co-P/Cu joints by soldering. Thermal shock test was carried out for 250 cycles in range -50°C 150°C, each cycle 30 minutes. Under mechanical thermal fatigue...
Cobalt-phosphorus (Co-P) film is an excellent candidate for pad surface treatment in the process of under bump metallization (UBM) owing to its good wettability and diffusion-resistance. Different formation growth intermetallic compounds (IMC) at Co-P solder interface gives a variety joint performance with change phosphorus (P) content, while systematic investigation effect P contents on solid-state diffusion rare current studies. In this work, IMC evolution has been systematically studied...