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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Evaluation of structures of solder joint with printed board circuit
 Jakubec, Jiří ; Jirák, Josef (referee) ; Černoch, Pavel (advisor)
The theoretical part of the diploma thesis deals with the basic principles of the scanning electron microscope and the environmental scanning electron microscope. A description of the signals generated by an electrons incidence onto a specimen and detection options of these signals in the mentioned microscopes is included in the work. The experimental part of the work concerns an examination of a quality of several joints soldered by different methods on the printed circuit boards after different stresses by use of a visual check and the instruments of the light microscope and the environmental scanning electron microscope. The acquired data are evaluated and summarized.
Detailed record
Charge neutralization of the substrate surface during direct ion beam deposition
 Kejík, Lukáš ; Bábor, Petr (referee) ; Voborný, Stanislav (advisor)
Bachelor's thesis deals with possibilities of substrate neutralisation during ion beam deposition. There were designed and tested three sample holders with integrated neutralization filament. Depositions of gallium nitride were done on samples with all configurations, then analyzed by XPS. In this thesis the suitability of all configuration was evaluated and discussed.
Detailed record
Evaluation of structures of solder joint with printed board circuit
 Jakubec, Jiří ; Jirák, Josef (referee) ; Černoch, Pavel (advisor)
The theoretical part of the diploma thesis deals with the basic principles of the scanning electron microscope and the environmental scanning electron microscope. A description of the signals generated by an electrons incidence onto a specimen and detection options of these signals in the mentioned microscopes is included in the work. The experimental part of the work concerns an examination of a quality of several joints soldered by different methods on the printed circuit boards after different stresses by use of a visual check and the instruments of the light microscope and the environmental scanning electron microscope. The acquired data are evaluated and summarized.
Detailed record
Charge neutralization of the substrate surface during direct ion beam deposition
 Kejík, Lukáš ; Bábor, Petr (referee) ; Voborný, Stanislav (advisor)
Bachelor's thesis deals with possibilities of substrate neutralisation during ion beam deposition. There were designed and tested three sample holders with integrated neutralization filament. Depositions of gallium nitride were done on samples with all configurations, then analyzed by XPS. In this thesis the suitability of all configuration was evaluated and discussed.
Detailed record

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