Klaus Graff

Metal Impurities in Silicon-Device Fabrication (eBook, PDF)

• Format: PDF

Produktbeschreibung

Metal Impurities in Silicon-Device Fabrication treats the transition-metal impurities generated during the fabrication of silicon samples and devices. The different mechanisms responsible for contamination are discussed, and a survey is given of their impact on device performance. The specific properties of the main and rare impurities in silicon are examined, as well as the detection methods and requirements in modern technology. Finally, impurity gettering is studied along with modern techniques to determine the gettering efficiency. In all of these subjects, reliable and up-to-date data are presented. This monograph provides a thorough review of the results of recent scientific investigations, as well as the relevant data and properties of the various metal impurities in silicon. The new edition includes important recent data and a number of new tables.

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Produktdetails

• Verlag: Springer Berlin Heidelberg
• Seitenzahl: 270
• Erscheinungstermin: 7. März 2013
• Englisch
• ISBN-13: 9783642571213
• Artikelnr.: 53380513

Inhaltsangabe

1. Introduction.- 2. Common Properties of Transition Metals.- 2.1 General Behavior.- 2.2 Contamination of Silicon Wafers.- 2.2.1 Solid Phase.- 2.2.2 Liquid Phase.- 2.2.3 Vapor Phase.- 2.3 Impact on Device Performance.- 2.3.1 Dissolved Transition Metals.- 2.3.2 Precipitated Transition Metals.- 3. Properties of Transition Metals in Silicon.- 3.1 Solubilities.- 3.2 Diffusivities.- 3.3 Dissolved Impurities.- 3.3.1 Point Defects.- 3.3.2 Complexes.- 3.4 Precipitated Metals.- 3.4.1 Volume Precipitates.- 3.4.2 Surface Precipitates - Haze.- 3.4.3 Haze Phenomena.- 4. Properties of the Main Impurities.- 4.1 Iron.- 4.1.1 Solubility.- 4.1.2 Diffusivity.- 4.1.3 Behavior During Heat Treatment.- 4.1.4 Electrical Activity.- 4.1.5 Properties of the Precipitates.- 4.1.6 Known Impurity Sources, and Common Concentrations.- 4.1.7 Avoidance of Contamination.- 4.2 Nickel.- 4.2.1 Solubility.- 4.2.2 Diffusivity.- 4.2.3 Behavior During Heat Treatment.- 4.2.4 Electrical Activity.- 4.2.5 Properties of the Precipitate.- 4.2.6 Known Impurity Sources, and Common Concentrations.- 4.2.7 Avoidance of Contamination.- 4.3 Copper.- 4.3.1 Solubility.- 4.3.2 Diffusivity.- 4.3.3 Behavior During Heat Treatment.- 4.3.4 Electrical Activity.- 4.3.5 Properties of the Precipitate.- 4.3.6 Known Impurity Sources and Common Concentration.- 4.3.7 Avoidance of Contamination.- 4.4 Molybdenum.- 4.4.1 Solubility.- 4.4.2 Diffusivity.- 4.4.3 Behavior During Heat Treatment.- 4.4.4 Electrical Activity.- 4.4.5 Properties of the Precipitate.- 4.4.6 Known Impurity Sources and Common Concentrations.- 4.4.7 Avoidance of Contamination.- 4.5 Palladium.- 4.5.1 Solubility.- 4.5.2 Diffusivity.- 4.5.3 Behavior During Heat Treatment.- 4.5.4 Electrical Activity.- 4.5.5 Properties of the Precipitate.- 4.5.6 Known Impurity Sources and Common Concentrations.- 4.6 Platinum.- 4.6.1 Solubility.- 4.6.2 Diffusivity.- 4.6.3 Behavior During Heat Treatment.- 4.6.4 Electrical Activity.- 4.6.5 Properties of the Precipitate.- 4.6.6 Known Impurity Sources and Common Concentrations.- 4.6.7 Avoidance of Contamination.- 4.7 Gold.- 4.7.1 Solubility.- 4.7.2 Diffusivity.- 4.7.3 Behavior During Heat Treatment.- 4.7.4 Electrical Activity.- 4.7.5 Properties of the Precipitates.- 4.7.6 Known Impurity Sources and Common Concentrations.- 4.7.7 Avoidance of Contamination.- 5. Properties of Rare Impurities.- 5.1 Scandium.- 5.2 Titanium.- 5.3 Vanadium.- 5.4 Chromium.- 5.5 Manganese.- 5.6 Cobalt.- 5.7 Zinc.- 5.8 Zircon.- 5.9 Niobium.- 5.10 Ruthenium.- 5.11 Rhodium.- 5.12 Silver.- 5.13 Cadmium.- 5.14 Hafnium.- 5.15 Tantalum.- 5.16 Tungsten.- 5.17 Rhenium.- 5.18 Osmium.- 5.19 Iridium.- 5.20 Mercury.- 6. Detection Methods.- 6.1 Detection of Total Impurity Content.- 6.1.1 Neutron Activation Analysis.- 6.1.2 Mass Spectrometers, Secondary Ion Mass Spectrometers.- 6.1.3 Atomic Absorption Spectroscopy.- 6.1.4 Vapor-Phase Decomposition.- 6.1.5 Inductively-Coupled Plasma Spectroscopy.- 6.1.6 Total-Reflection X-Ray Fluorescence Analysis.- 6.2 Detection of Dissolved Impurities.- 6.2.1 Deep Level Transient Spectroscopy.- 6.2.2 Carrier Lifetime.- 6.2.3 Diffusion Length.- 6.3 Detection of Precipitates.- 6.3.1 Haze Test.- 7. Requirements of Modern Technology.- 7.1 Reduction of Contamination.- 7.1.1 Control of Ingots.- 7.1.2 Process Control.- 8. Gettering of Impurities.- 8.1 Gettering Mechanisms.- 8.2 Control of Gettering Efficiency.- 8.2.1 Conventional Methods.- 8.2.2 Palladium Test.- 8.2.3 Iron Test.- 9. Conclusion and Future Trends.- References.