Silicon-Based On-Wafer Packaging for High Isolation in High-Density Circuits


Book Description

This project concentrates on the development and demonstration of a novel approach which is appropriate for the development of circuits that require high isolation and high density of integration. In the past ten months, we have extensively investigated the development of a vertically integrated circuit configuration with emphasis on understanding cross talk in various architectures in an effort to minimize it while at the same time circuit efficiency is optimized. The developed architectures for maximum isolation and minimum loss are presently applied towards the design of a three-stage low-noise amplifier. With the successful completion of this LNA (expected by the end of November) we will successfully move towards the development of a K/Ka-Band SSPA/LNA amplifier pair with an isolation between the receiving and transmitting components of better than -80 dB. In both configurations, high isolation between the neighboring circuit components will be achieved by vertically integrating the individual components and by incorporating an effective on-wafer Si micromachined package to further isolate electromagnetically the MMIC components. The performance will be compared to the state-of-the-art to demonstrate excellent electrical response with low cost and high density.







Materials for Advanced Packaging


Book Description

Significant progress has been made in advanced packaging in recent years. Several new packaging techniques have been developed and new packaging materials have been introduced. This book provides a comprehensive overview of the recent developments in this industry, particularly in the areas of microelectronics, optoelectronics, digital health, and bio-medical applications. The book discusses established techniques, as well as emerging technologies, in order to provide readers with the most up-to-date developments in advanced packaging.




Microsystem Design


Book Description

It is a real pleasure to write the Foreword for this book, both because I have known and respected its author for many years and because I expect this book’s publication will mark an important milestone in the continuing worldwide development of microsystems. By bringing together all aspects of microsystem design, it can be expected to facilitate the training of not only a new generation of engineers, but perhaps a whole new type of engineer – one capable of addressing the complex range of problems involved in reducing entire systems to the micro- and nano-domains. This book breaks down disciplinary barriers to set the stage for systems we do not even dream of today. Microsystems have a long history, dating back to the earliest days of mic- electronics. While integrated circuits developed in the early 1960s, a number of laboratories worked to use the same technology base to form integrated sensors. The idea was to reduce cost and perhaps put the sensors and circuits together on the same chip. By the late-60s, integrated MOS-photodiode arrays had been developed for visible imaging, and silicon etching was being used to create thin diaphragms that could convert pressure into an electrical signal. By 1970, selective anisotropic etching was being used for diaphragm formation, retaining a thick silicon rim to absorb package-induced stresses. Impurity- and electrochemically-based etch-stops soon emerged, and "bulk micromachining" came into its own.




Fundamentals of Microsystems Packaging


Book Description

LEARN ABOUT MICROSYSTEMS PACKAGING FROM THE GROUND UP Written by Rao Tummala, the field’s leading author, Fundamentals of Microsystems Packaging is the only book to cover the field from wafer to systems, including every major contributing technology. This rigorous and thorough introduction to electronic packaging technologies gives you a solid grounding in microelectronics, photonics, RF, packaging design, assembly, reliability, testing, and manufacturing and its relevance to both semiconductors and systems. You’ll find: *Full coverage of electrical, mechanical, chemical, and materials aspects of each technology *Easy-to-read schematics and block diagrams *Fundamental approaches to all system issues *Examples of all common configurations and technologies—wafer level packaging, single chip, multichip, RF, opto-electronic, microvia boards, thermal and others *Details on chip-to-board connections, sealing and encapsulation, and manufacturing processes *Basics of electrical and reliability testing




MEMS Materials and Processes Handbook


Book Description

MEMs Materials and Processes Handbook" is a comprehensive reference for researchers searching for new materials, properties of known materials, or specific processes available for MEMS fabrication. The content is separated into distinct sections on "Materials" and "Processes". The extensive Material Selection Guide" and a "Material Database" guides the reader through the selection of appropriate materials for the required task at hand. The "Processes" section of the book is organized as a catalog of various microfabrication processes, each with a brief introduction to the technology, as well as examples of common uses in MEMs.




3D and Circuit Integration of MEMS


Book Description

Explore heterogeneous circuit integration and the packaging needed for practical applications of microsystems MEMS and system integration are important building blocks for the “More-Than-Moore” paradigm described in the International Technology Roadmap for Semiconductors. And, in 3D and Circuit Integration of MEMS, distinguished editor Dr. Masayoshi Esashi delivers a comprehensive and systematic exploration of the technologies for microsystem packaging and heterogeneous integration. The book focuses on the silicon MEMS that have been used extensively and the technologies surrounding system integration. You’ll learn about topics as varied as bulk micromachining, surface micromachining, CMOS-MEMS, wafer interconnection, wafer bonding, and sealing. Highly relevant for researchers involved in microsystem technologies, the book is also ideal for anyone working in the microsystems industry. It demonstrates the key technologies that will assist researchers and professionals deal with current and future application bottlenecks. Readers will also benefit from the inclusion of: A thorough introduction to enhanced bulk micromachining on MIS process, including pressure sensor fabrication and the extension of MIS process for various advanced MEMS devices An exploration of epitaxial poly Si surface micromachining, including process condition of epi-poly Si, and MEMS devices using epi-poly Si Practical discussions of Poly SiGe surface micromachining, including SiGe deposition and LP CVD polycrystalline SiGe A concise treatment of heterogeneously integrated aluminum nitride MEMS resonators and filters Perfect for materials scientists, electronics engineers, and electrical and mechanical engineers, 3D and Circuit Integration of MEMS will also earn a place in the libraries of semiconductor physicists seeking a one-stop reference for circuit integration and the practical application of microsystems.




Semiconductor Gas Sensors


Book Description

Semiconductor Gas Sensors, Second Edition, summarizes recent research on basic principles, new materials and emerging technologies in this essential field. Chapters cover the foundation of the underlying principles and sensing mechanisms of gas sensors, include expanded content on gas sensing characteristics, such as response, sensitivity and cross-sensitivity, present an overview of the nanomaterials utilized for gas sensing, and review the latest applications for semiconductor gas sensors, including environmental monitoring, indoor monitoring, medical applications, CMOS integration and chemical warfare agents. This second edition has been completely updated, thus ensuring it reflects current literature and the latest materials systems and applications. - Includes an overview of key applications, with new chapters on indoor monitoring and medical applications - Reviews developments in gas sensors and sensing methods, including an expanded section on gas sensor theory - Discusses the use of nanomaterials in gas sensing, with new chapters on single-layer graphene sensors, graphene oxide sensors, printed sensors, and much more