Results 121 to 130 of about 6,013,042 (268)
Study of lead-free solder joints reliability
, 2010 The thesis deals with problems concerning lead free soldering especially the study of the structure of solder joints and their reliability. The thesis evaluates lead free solder alloys.
Pícha, Jan
core +1 more source
Progress in Photovoltaics: Research and Applications, EarlyView.This work deals with the degradation of solar modules with varying material combinations under accelerated aging conditions. By in situ moisture measurements and simulations of oxygen ingress, the consumption of stabilizing additives and polymer degradation can be correlated spatially resolved with the penetrating stressors.
Robert Heidrich +11 more
wiley +1 more source
Review of microstructure and properties of low temperature lead-free solder in electronic packaging. [PDF]
Sci Technol Adv Mater, 2020 Xu KK +5 more
europepmc +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Grapevine production is increasingly challenged by global warming, with global wine output falling to a six‐decade low in 2024. At the same time, the vine and wine sector faces growing pressure to reduce its carbon footprint. Agrivoltaics, which integrates solar photovoltaic (PV) modules into plant production systems, offers a potential pathway to ...
Sabine Tausz‐Posch +5 more
wiley +1 more source
Research on Baseplate Soldering Process of High-voltage IGBT Module
Kongzhi Yu Xinxi Jishu, 2011 The solder layer between AlN substrate and AlSiC baseplate is a main way of heat dissipation for high-voltage IGBT module. Therefore, the void rate of the solder layer has a direct impact on the performance and reliability of high-voltage IGBT module. In
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Bioelectronic Wearable Sensors Produced by Computerized Embroidery Using a Dual Thread Approach
Small, EarlyView.A dual‐thread embroidered SmartBra integrates silver‐plated and conductive‐polymer (PECOTEX) threads to enable simultaneous cardiac monitoring and open‐circuit potentiometric sensing of potassium and sodium in a breast milk substitute. The wearable platform is fabricated using computerized embroidery, offering a scalable, proof‐of‐concept route toward ...
Taliya Weinstein +9 more
wiley +1 more source
Small, EarlyView.A bias‐free photovoltaic‐photoelectrochemical tandem system enables simultaneous methane and glycerol upgrading to formic acid under ambient conditions. The cathode generates hydrogen peroxide for methane oxidation, while the photoanode efficiently oxidizes glycerol.
Ho Kun Woo +5 more
wiley +1 more source
The Microstructure, Thermal, and Mechanical Properties of Sn-3.0Ag-0.5Cu-xSb High-Temperature Lead-Free Solder. [PDF]
Materials (Basel), 2020 Li C, Li C, Yan Y, Gao T, Xu G.
europepmc +1 more source
steel research international, EarlyView.This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka +3 more
wiley +1 more source
Tailoring Model‐Based Systems Engineering for Sub‐100 g PlanarSats: A Power‐First View Stack
Systems Engineering, EarlyView.ABSTRACT This paper addresses how to apply model‐based systems engineering (MBSE) to ultrasmall planar satellites under severe power and resource constraints. PlanarSats are sub‐100‐gram spacecraft built as single printed‐circuit boards where the same surface must host both electronics and solar cells, so power generation, geometry, and component ...
Mehmet Şevket Uludaǧ +1 more
wiley +1 more source