Návrh a testování vhodné metodiky pro čištění povrchů preparátů in situ pro elektronovou mikroskopii pomalými elektrony

Autor:	Rudolfová, Zdena
Jazyk:	čeština
Rok vydání:	2012
Předmět:	plasma cleaning plasmatické čištění elektronová mikroskopie pomalými elektrony štípání dopant contrast FIB low voltage electron microscopy cleavage kontrast dopantů
Druh dokumentu:	masterThesis
Popis:	This thesis concentrates on the methodology of semiconductor samples preparation for low voltage scanning electron microscopy. In the first part a detailed theory of sample imaging using electron beam and difference between classical scanning electron microscopy (SEM) and low voltage scanning electron microscopy (LVSEM) is described. It is given a description of a contrast formation in SEM and LVSEM and theories describing a contrast formation of differently doped semiconductors. The second part contains experimental data. The advantages and disadvantages of cleavage and focused ion beam (FIB) milling as sample preparation techniques are discussed. FIB was found as the best method for sample preparation for the analysis of precisely defined location on the sample. It is necessary to use the lowest possible FIB accelerating voltage for final polishing, ideally 1 kV.
Databáze:	Networked Digital Library of Theses & Dissertations
Externí odkaz:	http://www.nusl.cz/ntk/nusl-230351 Zobrazit plný text záznamu