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Metal silicides in CMOS technology: Past, present, and future trends
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-5845-3032
2003 (English)In: Critical reviews in solid state and materials sciences, ISSN 1040-8436, E-ISSN 1547-6561, Vol. 28, no 1, 1-129 p.Article, review/survey (Refereed) Published
Abstract [en]

Metal silicides have played an indispensable role in the rapid developments of microelectronics since PtSi was first used to improve the rectifying characteristics of diodes in early 1960s. This work first provides a brief historical overview of the many different silicides, and, correspondingly. the different processing methodologies used in the past. With regard to the present use of silicides in CMOS technologies, a convergence becomes clear with the self-aligned technology using only a limited number of silicides, namely, TiSi2, CoSi2, and NiSi. A section on fundamental aspects is included to cover thermodynamics and kinetics, which are essential for understanding the silicide formation processes. The advantages and disadvantages of TiSi2, CoSi2, and NiSi are analyzed with the development trend of CMOS technologies as a measure. Specifically, the reactive diffusion and phase formation of these silicides in the three terminals of a metal-oxide-semiconductor device, that is, gate, source, and drain, are scrutinized. The review ends with an extended discussion about future trends of metal silicides in micro/nanoelectronics, with reference to the potential material aspects and device structures outlined in the International Technology Roadmap for Semiconductors.

Place, publisher, year, edition, pages
2003. Vol. 28, no 1, 1-129 p.
Keyword [en]
chemical-vapor-deposition, ion-beam synthesis, x-ray-diffraction, tisi2 thin-films, self-aligned ti, transmission electron-microscopy, polycrystalline sixge1-x films, c54 titanium germanosilicide, shallow junction formation, silicon-germanium alloys
Identifiers
URN: urn:nbn:se:kth:diva-22385ISI: 000182013000001OAI: oai:DiVA.org:kth-22385DiVA: diva2:341083
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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