Ueda, Takao Oki, Tatsuya Koyanaka, Shigeki
Published in
Journal of Material Cycles and Waste Management
Given the increase in digital product waste, demand for recycling of printed circuit boards (PCBs) is increasing. Precious and minor metals are often well concentrated in integrated circuit (IC) chips, especially in PCBs; hence, IC chips are primary targets for recycling. The technology for the non-destructive detachment of IC chips from PCBs is in...
baudyš, dominik
Cílem této diplomové práce je přiblížit čtenářům problematiku z oblasti desek plošných spojů a procesu pájení. Teoretická část je zaměřena na proces pájení, různé technologie pájení, vlastnosti substrátů a chyby vznikající během této činnosti či jejich vliv na funkci desky. Praktická část zkoumá teplotní roztažnost desky v ose „Z“. Společně s popis...
LaCasse, Phillip M. Otieno, Wilkistar Maturana, Francisco P.
Published in
SN Applied Sciences
This research presents an exploratory data analytics case study in defect prediction on printed circuit boards (PCB) employing ball grid array (BGA) package types during assembly. BGA package types are of interest because defects are difficult to identify and costly to rework. While much of the existing research is dedicated to techniques to identi...
Machuca Pilblad, Simón
Denna rapport utreder möjligheten till en mönsterkortslösning för en kabelbaserad kraftenhet. Denna kraftenhet är en låda som består av flera komponenter som exempelvis kraftenheter för 24V, 100V, filter och motorstyrkort för två axlar samt kraftfördelning. Kablarna i enheten är tidskrävande och dessutom kostsamma. Därför har enheten idag både hög ...
Kaliyaraj, Dhanalashmi Rajendran, Menaka Angamuthu, Vignesh Antony, Annam Renita Kaari, Manigundan Thangavel, Shanmugasundaram Venugopal, Gopikrishnan Joseph, Jerrine Manikkam, Radhakrishnan
Published in
Bioresources and Bioprocessing
BackgroundE-waste management is extremely difficult to exercise owing to its complexity and hazardous nature. Printed circuit boards (PCBs) are the core components of electrical and electronic equipment, which generally consist of polymers, ceramics, and heavy metals.ResultsThe present study has been attempted for removal of heavy metals from print...
Pascal, Yoann
Les travaux présentés dans ce manuscrit traitent de l’enfouissement dans un circuit imprimé de convertisseurs de puissance, paradigme visant l’insertion de composants électroniques au sein du circuit imprimé.Une structure simple et économique de composant inductif enfoui, pouvant être employé comme inductance, coupleur, ou résonateur monolithique, ...
Schlottmann, Florian Allers, Maria Kirk, Ansgar T. Bohnhorst, Alexander Zimmermann, Stefan
Published in
Journal of The American Society for Mass Spectrometry
Ion funnels are one of the key components for transferring ions from higher pressure into the vacuum. Typically, ion funnels are constructed of several different plate ring electrodes with a decreasing inner diameter where radio frequency (RF) voltages and electric DC fields are applied to the electrodes to focus and transport ion clouds. In this w...
Hanh, Hong Mai; Dinh, Hoang Tran; Janssens, Ewald; 34400;
A sensitive non-enzymatic fluorescent glucose sensor, consisting of vertically aligned ZnO nanotubes (NTs) grown on low-cost printed circuit board substrates, is described. The ZnO NTs were synthesized by a one-step hydrothermal method without using a seed layer. The sensor function is based on the photoluminescence (PL) quenching of ZnO NTs treate...
Mai, Hanh Hong Tran, Dinh Hoang Janssens, Ewald
Published in
Microchimica Acta
A sensitive non-enzymatic fluorescent glucose sensor, consisting of vertically aligned ZnO nanotubes (NTs) grown on low-cost printed circuit board substrates, is described. The ZnO NTs were synthesized by a one-step hydrothermal method without using a seed layer. The sensor function is based on the photoluminescence (PL) quenching of ZnO NTs treate...
Song, Xu Yang, Wulin Lin, Zheqian Huang, Liping Quan, Xie
Published in
The Science of the total environment
A loop of catholyte effluent feeding to the bioanodes of air-cathode microbial fuel cells (MFCs) achieved complete recovery of mixed Sn(II), Fe(II) and Cu(II), with simultaneous treatment of the co-present organics in synthetic wastewater of printed circuit boards (PrCBs). This in-situ utilization of caustic in the cathodes and the neutralization o...
