Results 101 to 110 of about 398,038 (255)

Transcending the Space‐Bandwidth and Lighting Trade‐Offs: A Programmable Self‐Mixing Interferometry Imager for Cross‐Scale Surface Inspection

Laser &Photonics Reviews, EarlyView.
This work reports a laser diode‐based self‐mixing interferometry imager featuring illumination‐invariance imaging, a 500 kHz pixel rate, and an 8.77 µm lateral resolution. It also features a programmable field‐of‐view and leading space‐bandwidth product that surpasses existing technologies by an order of magnitude, enabling cross‐scale workflow ...
Zhou Su, Feng Lin, Mubasher Ali, Yuanfu Tan, Wei‐Hsin Liao, Hay Wong   +5 more
wiley   +1 more source

Reliability of Ni-modified reduced graphene oxide reinforced Sn-58Bi/Cu solder joints after isothermal aging

Materials & Design
The Joule heat generated during the opreation of microelectronic devices can subject the Sn-Bi solder alloy to isothermal aging, which affects the reliability of solder joint interconnections. In this study, the effect of nickel-modified reduced graphene
Wenchao Yang, Zhipeng Yang, Liying Luo, Weiou Qin, Shimin Li, Liangwei Li, Zongwu Wei, Yongzhong Zhan   +7 more
doaj   +1 more source

Viscoplastic Deformation of Lead Free Solder Alloy- Experiments and Simulations [PDF]

, 2003
In this paper, viscoplastic deformations of Sn-3.5Ag-0.75Cu solder alloy are discussed. First, the following experiments are conducted: (1) Pure tension at several strain rates.
Sasaki, Katsuhiko, Yanagimoto, Akiyuki, Ishikawa, Hiromasa   +2 more
core  

Improved Corrosion Resistance of a Micro‐Alloyed Carbon Steel Assessed by Multi‐Element Electrical Resistance Probes and Coupons in Natural Seawater and Soil

Materials and Corrosion, EarlyView.
Multi‐element electrical resistance probes fabricated from industrial carbon steels enable real‐time corrosion monitoring in natural seawater and soil. A micro‐alloyed grade (AMLoCor) demonstrates up to 2.4 times improved uniform corrosion resistance over conventional S355 GP steel.
Erwan Diler, Johan Becker, Thomas Urios
wiley   +1 more source

Wettability of low silver content lead-free solder alloy

, 2009
Wettability of low silver (Ag) content Sn-xAg-0.7Cu-0.5In lead-free solder (x = 0.1,0.3,0.5) on copper substrate was investigated. Wetting balance test results indicated that varying small Ag content in the alloy affects the wettability of solders with ...
Dharma, I., Hamdi, Mohd, Ariga, Tadashi, Budi, Gusti Bagus   +3 more
core   +1 more source

Degradation of Crystalline Si‐Based Solar Modules With Varying Material Combinations—Part I: Encapsulant Degradation

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, Oscar Lacroix‐Andrivet, Nikola Babić, Lasse Baldauf, Julia Rendon, Marko Jankovec, Marko Topič, Camille Bainier, Anton Mordvinkin, Hervé Vezin, Simon Pondaven, Ralph Gottschalg   +11 more
wiley   +1 more source

Advancing breakthrough design of superior strength-ductility synergy of lead-free solder alloys via interpretable machine learning and iterative optimization

Materials & Design
The miniaturization, high-density integration, and multifunctionalization of electronic devices impose increasingly stringent performance requirements on solder alloys employed in microelectronic packaging.
Jianchao Liang, Ruyu Tian, Zexi Wang, Yuqing Ran, Qing Sun, Shang Wang, Chunfang Zi, Weijun Li, Baolei Liu, Yanhong Tian   +9 more
doaj   +1 more source

Effect of the LaNd Addition on Melting Point and Spreading Properties of Bi5Sb8Sn Solder Alloy

, 2011
Bi5Sb8Sn solder alloy is the most promising alternative to existing high-Pb solder as high-temperature lead-free soft solder alloy series whose melting point is about 264°C and have better conductivity and mechanical properties, but its wettability need ...
Zhi Wei Xu, Kun Tang, Kuai Le Zhao, Cun Cang Han, Yang Yang Sheng, Yan Fu Yan   +5 more
core   +1 more source

Unbiased Tandem System for Simultaneous Methane and Glycerol Upgrading to Formic Acid Under Ambient Conditions

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, Beomhui Lee, Rachel N. Gaines, Songtao Tang, Paul J. A. Kenis, Lili Cai   +5 more
wiley   +1 more source

Characterization of an Active Soldering Zn-Mg Alloy and the Study of Ultrasonic Soldering of SiC Ceramics with Copper Substrate

Applied Sciences
The aim of this study was to characterize a Zn-Mg type soldering alloy and direct soldering of SiC ceramics with a copper substrate. The Zn1.5Mg solder exerts a wider melting interval. The temperature of the eutectic reaction was 365 °C, and the liquidus
Roman Kolenak, Alexej Pluhar, Jaromir Drapala, Peter Gogola, Matej Pasak, Mikulas Sloboda   +5 more
doaj   +1 more source