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This is the first definitive book on rapid thermal processing (RTP), an essential namufacturing technology for single-wafer processing in highly controlled environments. Written and edited by nine experts in the field, this book covers a range of topics for academics and engineers alike, moving from basic theory to advanced technology for wafer manufacturing. The book also provides new information on the suitability or RTP for thin film deposition, junction formation, silicides, epitaxy, and in situ processing. Complete discussions on equipment designs and comparisons between RTP and other processing approaches also make this book useful for supplemental information on silicon processing, VLSI processing, and integrated circuit engineering.
As feature dimensions of integrated circuits shrink, the associated geometrical constraints on junction depth impose severe restrictions on the thermal budget for processing such devices. Furthermore, due to the relatively low melting point of the first aluminum metallization level, such restrictions extend to the fabrication of multilevel structures that are now essential in increasing packing density of interconnect lines. The fabrication of ultra large scale integrated (ULSI) devices under thermal budget restrictions requires the reassessment of existing and the development of new microelectronic materials and processes. This book addresses three broad but interrelated areas. The first area focuses on the subject of rapid thermal processing (RTP), a technology that allows minimization of processing time while relaxing the constraints on high temperature. Initially developed to limit dopant redistribution, current applications of RTP are shown here to encompass annealing, oxidation, nitridation, silicidation, glass reflow, and contact sintering. In a second but complementary area, advances in equipment design and performance of rapid thermal processing equipment are presented in conjunction with associated issues of temperature measurement and control. Defect mechanisms are assessed together with the resulting properties of rapidly deposited and processed films. The concept of RTP integration for a full CMOS device process is also examined together with its impact on device characteristics.
Heat-treatment and thermal annealing are very common processing steps which have been employed during semiconductor manufacturing right from the beginning of integrated circuit technology. In order to minimize undesired diffusion, and other thermal budget-dependent effects, the trend has been to reduce the annealing time sharply by switching from standard furnace batch-processing (involving several hours or even days), to rapid thermal processing involving soaking times of just a few seconds. This transition from thermal equilibrium, to highly non-equilibrium, processing was very challenging and is still a field ripe for further development.
"This text follows the tradition of Sze's highly successful pioneering text on VLSI technology and is updated with the latest advances in the field of microelectronic chip fabrication. Since computer chips are foundations of modern electronics, these topics are essential for the next generation of USLI technologies, allowing more transistors to be packaged on a single chip. Contributing to each chapter are industry experts, specializing in topics such as epitaxy with low temperature process, rapid thermal processes, low damage plasma reactive ion etching, fine line litography, cleaning technology, clean room technology, packing and reliability."--
This book is one of a series of five volumes forming an integrated, self-study course on silicon device physics, modes of operation, characterization, and fabrication. The series is based on many years of the author’s experience in academic and industrial teaching of semiconductors. The books are suitable for both class-teaching and self-study. The authors have designed the content to enable readers to be introduced gradually to semiconductors, in particular silicon components. The presentation includes many illustrations, practical examples, review questions and problems at the end of each chapter. Answers to review questions and solutions to problems will be provided for “self-check”. Complements courses covering silicon device physics, mode of components, characterization, and fabrication; Enables comprehensive, self-study in semiconductors, aimed at practicing engineers or university students; Includes many illustrations, practical examples, review questions and problems at the end of each chapter.