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Master's Thesis
Author of thesis: Ing. Adam Očkovič
Acad. year: 2023/2024
Supervisor: Ing. Michal Pavera, Ph.D.
Reviewer: Ing. David Pléha, Ph.D.
The thesis focuses on the analysis of semiconductor components using scanning probe microscopy. In the first part, crystalline substances are classified according to their electrical properties. Then, the theory of intrinsic and extrinsic semiconductors, PN transitions and finally the basic types and functions of transistors are introduced. In the second section, SPM techniques and their principles of operation are presented, which are suitable for failure analysis of semiconductor devices. The third chapter introduces the measurement setup, which consists of a scanning electron microscope MIRA and a scanning probe microscope LiteScope, which uses self-sensing probes. In the fourth chapter, the semiconductor samples analyzed were tungsten plugs in a cross-section of CMOS chip, a cross-section of bipolar transistor, and a lamella of unipolar MOSFET transistor. Analysis of these samples was performed using AFM, CAFM, EFM, KPFM and SSRM techniques in the last chapter. For each technique and sample, an analysis of the measured data was performed. Together with the techniques, the basic limitations and interesting outputs for failure analysis were presented.
Failure analysis, semiconductors, CMOS, bipolar transistor, MOSFET, SPM-SEM, AFM, CAFM, EFM, KPFM, SSRM, self-sensing probes
Date of defence
10.06.2024
Result of the defence
Defended (thesis was successfully defended)
Grading
B
Process of defence
Po otázkách oponenta bylo dále diskutováno: Možnost detekce dopantů v SiC. Proč nebylo možné detekovat signál z p dopované oblasti. Student na otázky odpověděl.
Language of thesis
Czech
Faculty
Fakulta strojního inženýrství
Department
Institute of Physical Engineering
Study programme
Physical Engineering and Nanotechnology (N-FIN-P)
Composition of Committee
prof. RNDr. Tomáš Šikola, CSc. (předseda) prof. RNDr. Jiří Spousta, Ph.D. (místopředseda) prof. RNDr. Pavel Zemánek, Ph.D. (člen) prof. Mgr. Dominik Munzar, Dr. (člen) doc. Mgr. Adam Dubroka, Ph.D. (člen) prof. RNDr. Petr Dub, CSc. (člen) prof. Ing. Jan Čechal, Ph.D. (člen) prof. RNDr. Jiří Petráček, Dr. (člen) prof. RNDr. Radim Chmelík, Ph.D. (člen) doc. Ing. Radek Kalousek, Ph.D. (člen) prof. Ing. Miroslav Kolíbal, Ph.D. (člen) doc. Ing. Stanislav Průša, Ph.D. (člen) RNDr. Antonín Fejfar, CSc. (člen)
Supervisor’s reportIng. Michal Pavera, Ph.D.
Grade proposed by supervisor: B
Reviewer’s reportIng. David Pléha, Ph.D.
Grade proposed by reviewer: B
Responsibility: Mgr. et Mgr. Hana Odstrčilová