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Impact of Particular Stages of the Manufacturing Process on the Reliability of Flexible Printed Circuits.
Sensors (Basel)
December 2024
Łukasiewicz Research Network-Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warsaw, Poland.
The purpose of the experiment was to indicate which element of the production process of flexible printed circuit boards is optimal in terms of the reliability of final products. According to the Taguchi method, in the experiment, five factors with two levels each were chosen for the subsequent analysis. These included the number of conductive layers, the thickness of the laminate layer, the type of the laminate, the diameter of the plated holes, and the current density in the galvanic bath.
View Article and Find Full Text PDFStudy on Quantitative Adjustment of CD Bias and Profile Angle in the Wet Etching of Cu-Based Stacked Electrode.
Materials (Basel)
December 2024
Chongqing Key Laboratory of Interface Physics in Energy Conversion, College of Physics, Chongqing University, Chongqing 400044, China.
The electrodes of thin film transistors (TFTs) have evolved from conventional single Cu layers to multi-layered structures formed by Cu and other metals or alloys. Different etching rates of various metals and galvanic corrosion between distinct metals may cause etching defects such as rough or uneven cross-sectional surfaces of stacked electrodes. Therefore, the etching of stacked electrodes faces new challenges.
View Article and Find Full Text PDFResearch on the Influence of Liquid Metal Embrittlement Cracks on the Strength and Fatigue Life of Spot-Welded Joints of Galvanized Q&P980 Steel.
Materials (Basel)
December 2024
Materials Bigdata and Applications Division, Materials Academy Jitri, Suzhou 215131, China.
Galvanized high-strength steel has emerged as a key focus in automotive lightweighting research. During resistance spot welding of galvanized steel, the phenomenon of liquid metal embrittlement (LME) can occur, which is characterized by the appearance of irregular cracks on the weld spot surface. However, the impact of LME cracks on the mechanical properties of joints remains unclear.
View Article and Find Full Text PDFPerformance metrics outperform physiological indicators in robotic teleoperation workload assessment.
Sci Rep
December 2024
School of Computer Science, University of Nottingham, Nottingham, UK.
Robotics holds the potential to streamline the execution of repetitive and dangerous tasks, which are difficult or impossible for a human operator. However, in complex scenarios, such as nuclear waste management or disaster response, full automation often proves unfeasible due to the diverse and intricate nature of tasks, coupled with the unpredictable hazards, and is typically prevented by stringent regulatory frameworks. Consequently, the predominant approach to managing activities in such settings remains human teleoperation.
View Article and Find Full Text PDFElectron transfer tuning for persulfate activation via the radical and non-radical pathways with biochar mediator.
J Hazard Mater
December 2024
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), Chengdu, Sichuan 610059, P.R. China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, P.R. China. Electronic address:
Electron mediator-based in-situ chemical oxidation (ISCO) offers a novel strategy for groundwater remediation due to diverse reaction pathways. However, distinguishing and further tuning the reaction pathway remains challenging. Herein, biochar as an electron mediator targeted active peroxysulphate (PDS) via the radical or non-radical pathway.
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