Results 41 to 50 of about 1,156,431 (219)

Laser-based soldering technique for hermetical sealing of the calibration target for the exomars' Raman instrument

, 2022
S.57-63We propose the laser-based Solderjet Bumping as a full inorganic joining technique for the hermetical sealing of a possible calibration target container for the ExoMars Raman Laser Spectrometer. This technique allows the adhesive free bonding in a
Seifert, M., Moral-Inza, A., Ribes, P., Lopez-Reyes, G., Burkhardt, T., Sansano, A., Lange, N.   +6 more
core   +1 more source

Comparative study on the bonding property of laser and reflow soldered Sn-3.0Ag-0.5Cu/Ni–P microbumps after isothermal aging and multiple reflowing

Journal of Materials Research and Technology
Laser soldering has attracted attention in microbumps joining field due to its noncontact and localized heating, a short joining time, fluxless and easy automation. In this study, Sn-3.0Ag-0.5Cu/Ni–P microbumps were prepared by laser soldering and reflow
Yang Wu, Zhijie Zhang, Leida Chen, Shuye Zhang   +3 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Electroplating and Ablative Laser Structuring of Elastomer Composites for Stretchable Multi-Layer and Multi-Material Electronic and Sensor Systems

Micromachines, 2021
In this work we present the concept of electroplated conductive elastomers and ablative multi-layer and multi-material laser-assisted manufacturing to enable a largely automated, computer-aided manufacturing process of stretchable electronics and sensors.
Simon P. Stier, Holger Böse
doaj   +1 more source

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

Advanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem, Zhiyuan Li, Minsu Heo, Fangyi Hu, Tian Lan, Youngdeog Koh, Ruiwen Xie, Chuanmu Tian, Marc Widenmeyer, Hyun‐Sik Kim, Jan P. Hofmann, Yuan Yu, Hongbin Zhang, Anke Weidenkaff, G. Jeffrey Snyder, Wenjie Xie   +15 more
wiley   +1 more source

High-power semiconductor laser array packaged on microchannel cooler using gold-tin soldering technology

, 2012
High power semiconductor laser arrays have found increased applications in many fields. In this work, a hard soldering microchannel cooler (HSMCC) technology was developed for packaging high power diode laser array.
Lingling Xiong, Kang, Lijun, Xingsheng Liu, Xiong, Lingling, Wang, Jingwei, Pu Zhang, Li, Xiaoning, Zhiqiang Nie, Liu, Xingsheng, Xiaoning Li, Jingwei Wang, Lijun Kang, Nie, Zhiqiang, Zhang, Pu   +13 more
core   +1 more source

NeuroVisio SyncPatch: A Skin‐Conformal Multimodal EMG–Motion Sensing Platform for Quantitative Neuromuscular Rehabilitation and Performance Monitoring

Advanced Healthcare Materials, EarlyView.
NeuroVisio SyncPatch integrates skin‐conformal electromyography (EMG) electrodes with camera‐tracked markers to jointly assess muscle activity and three‐dimensional knee kinematics during rehabilitation. Parallel feedback pathways provide real‐time kinematic guidance during movement and post‐trial neuromuscular feedback.
Bohyung Choi, Yoo‐Jin Jun, Heewon Choee, Kun‐Do Lee, Heesoo Kim, Yu Seok Hwang, Choong Yeon Kim, Seongok Chae, Juhyun Lee, Minkyu Je, Jae‐Woong Jeong, Hyung‐Soon Park   +11 more
wiley   +1 more source

Low-cost electronic circuitry for photoacoustic gas sensing

HardwareX, 2022
The circuitry comprises a sine wave generator based on direct digital synthesis, a laser diode driver module, a band-pass frequency filter, a synchronous detector with phase adjustment circuitry and a low pass filter to form an analog lock-in amplifier ...
Kanchalar Keeratirawee, Jasmine S. Furter, Peter C. Hauser   +2 more
doaj   +1 more source

Plasmon-enhanced nanosoldering of silver nanoparticles for high-conductive nanowires electrodes

Opto-Electronic Advances, 2021
The silver nanowires (Ag NWs) electrodes, which consist of incompact Ag nanoparticles (NPs) formed by multi-photon photoreduction, usually have poor conductivities.
Yuan-Yuan Zhao, Xue-Liang Ren, Mei-Ling Zheng, Feng Jin, Jie Liu, Xian-Zi Dong, Zhen-Sheng Zhao, Xuan-Ming Duan   +7 more
doaj   +1 more source

Stretchable Microelectrode Arrays for Electro‐Mechanical Probing of Brain Spheroids

Advanced Healthcare Materials, EarlyView.
A multimodal device featuring kirigami‐patterned stretchable microelectrode arrays enables concurrent mechanical actuation and electrophysiological recording of brain spheroids. The platform supports multiple loading regimes and reveals mechanically induced modulation of spontaneous network activity in 3D neural tissue models.
Eleonora Martinelli, Ivan Furfaro, Flavius Timis, João Marques, Tala El Kaissi, Desirée Maulà, Laurine Kolly, Julian Bär, Sina Röllin, Scott Erickson, Laetitia Nikles, Benoît Delaup, Camille Delgrange, Loris Gomez Baisac, Luc Stoppini, Adrien Roux, Giuseppe Schiavone, Stéphanie P. Lacour   +17 more
wiley   +1 more source