Silicide Contact and Gate in Microelectronic Devices

Author(s):  
K. N. Tu
Author(s):  
R. F. Schneidmiller ◽  
W. F. Thrower ◽  
C. Ang

Solid state materials in the form of thin films have found increasing structural and electronic applications. Among the multitude of thin film deposition techniques, the radio frequency induced plasma sputtering has gained considerable utilization in recent years through advances in equipment design and process improvement, as well as the discovery of the versatility of the process to control film properties. In our laboratory we have used the scanning electron microscope extensively in the direct and indirect characterization of sputtered films for correlation with their physical and electrical properties.Scanning electron microscopy is a powerful tool for the examination of surfaces of solids and for the failure analysis of structural components and microelectronic devices.


Author(s):  
L. J. Chen ◽  
L. S. Hung ◽  
J. W. Mayer

When an energetic ion penetrates through an interface between a thin film (of species A) and a substrate (of species B), ion induced atomic mixing may result in an intermixed region (which contains A and B) near the interface. Most ion beam mixing experiments have been directed toward metal-silicon systems, silicide phases are generally obtained, and they are the same as those formed by thermal treatment.Recent emergence of silicide compound as contact material in silicon microelectronic devices is mainly due to the superiority of the silicide-silicon interface in terms of uniformity and thermal stability. It is of great interest to understand the kinetics of the interfacial reactions to provide insights into the nature of ion beam-solid interactions as well as to explore its practical applications in device technology.About 500 Å thick molybdenum was chemical vapor deposited in hydrogen ambient on (001) n-type silicon wafer with substrate temperature maintained at 650-700°C. Samples were supplied by D. M. Brown of General Electric Research & Development Laboratory, Schenectady, NY.


Author(s):  
Christian Burmer ◽  
Siegfried Görlich ◽  
Siegfried Pauthner

Abstract New layout overlay technique has been developed based on standard image correlation techniques to support failure analysis in modern microelectronic devices, which are critical to analyze because they are realized in new technologies using sub-ìm design rules, chemical mechanical polishing techniques (CMP) and autorouted design techniques. As the new technique is realized as an extension of a standard CAD-navigation software and as it makes use of standard image format "TIFF" for data input, which is available at all modern equipments for failure analysis, these technique can be applied to all modern failure analysis methods. Here examples are given for three areas of application: circuit modification using Focused Ion Beam (FIB), support of preparation for backside inspection and fault localization using emission microscopy.


2011 ◽  
Vol 58-60 ◽  
pp. 2171-2176 ◽  
Author(s):  
Yuan Chen ◽  
Xiao Wen Zhang

Focused ion beam (FIB) system is a powerful microfabrication tool which uses electronic lenses to focus the ion beam even up to nanometer level. The FIB technology has become one of the most necessary failure analysis and failure mechanism study tools for microelectronic device in the past several years. Bonding failure is one of the most common failure mechanisms for microelectronic devices. But because of the invisibility of the bonding interface, it is difficult to analyze this kind of failure. The paper introduced the basic principles of FIB technology. And two cases for microelectronic devices bonding failure were analyzed successfully by FIB technology in this paper.


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