National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
Lead-free solder joint and environmental impacts
Kudláček, František ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
The aim of this bachelor thesis is to determine the effect of low-temperature lead-free solder during the aging process. The theoretical part deals with the types of lead-free solders and solder pastes used for the production of electrical circuits. In the practical part we deal with the design and measurement of the PCB. For our analysis, we pay more attention to the solder paste type Sn42Ag1Bi57 and its temperature profile. A four-point measurement method is used for evaluation, which shows us the difference between the measured values.
Fabrication of nanostructures on graphite/graphene layers and measurement its transport properties at room temperature
Hrabovský, Miloš ; Urbánek, Michal (referee) ; Bartošík, Miroslav (advisor)
This bachelor thesis is dedicated to fabrication of graphite/graphene layers and measurement of their transport properties. Graphene flakes were deposited by mechanical exfoliation. For contacting graphene flakes was used electron beam lithography and were observed using optical microscopy and atomic force microscopy. The thesis describes the steps for the production, observation and measurement of deposited graphene flakes. Results, problems and solutions of these problems are given in the experimental work.
Preparation and Utilization of Exfoliated Graphite/Graphene Layers in Nanosensorics
Hrabovský, Miloš ; Drbohlavová, Jana (referee) ; Bartošík, Miroslav (advisor)
Tato diplomová práce se věnuje výrobě vrstev grafitu/grafenu a meření jejich transportních vlastností v závislosti na relativní vlhkosti. Grafenové šupinky byly nanášeny pomocí mechanického odlupování . Pro kontaktování grafenových šupinek byla využita elektronová litografie a na pozorování byly využity optická mikroskopie, mikroskopie atomárních sil a elektronová mikroskopie. V práci jsou popsány jednotlivé kroky výroby, analýzy a měření transportních vlastností nanesených grafenových šupinek.
Preparation and Utilization of Exfoliated Graphite/Graphene Layers in Nanosensorics
Hrabovský, Miloš ; Drbohlavová, Jana (referee) ; Bartošík, Miroslav (advisor)
Tato diplomová práce se věnuje výrobě vrstev grafitu/grafenu a meření jejich transportních vlastností v závislosti na relativní vlhkosti. Grafenové šupinky byly nanášeny pomocí mechanického odlupování . Pro kontaktování grafenových šupinek byla využita elektronová litografie a na pozorování byly využity optická mikroskopie, mikroskopie atomárních sil a elektronová mikroskopie. V práci jsou popsány jednotlivé kroky výroby, analýzy a měření transportních vlastností nanesených grafenových šupinek.
Fabrication of nanostructures on graphite/graphene layers and measurement its transport properties at room temperature
Hrabovský, Miloš ; Urbánek, Michal (referee) ; Bartošík, Miroslav (advisor)
This bachelor thesis is dedicated to fabrication of graphite/graphene layers and measurement of their transport properties. Graphene flakes were deposited by mechanical exfoliation. For contacting graphene flakes was used electron beam lithography and were observed using optical microscopy and atomic force microscopy. The thesis describes the steps for the production, observation and measurement of deposited graphene flakes. Results, problems and solutions of these problems are given in the experimental work.

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