contamination of electronic assemblies electronic packaging

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Contamination Of Electronic Assemblies

Author : Elissa M. Bumiller
ISBN : 0849314836
Genre : Technology & Engineering
File Size : 62. 68 MB
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Contamination problems have become a major factor in determining the manufacturability, quality, and reliability of electronic assemblies. Understanding the mechanics and chemistry of contamination has become necessary for improving quality and reliability and reducing costs of electronic assemblies. Designed as a practical guide, Contamination of Electronic Assemblies presents a generalized overview of contamination problems and serves as a problem-solving reference point. It takes a step-by-step approach to identifying contaminants and their effects on electronic products at each level of manufacture. The text is divided into four sections: Laminate Manufacturing, Substrate Fabrication, Printed Wiring Board Assembly, and Conformal Coatings. These sections discuss all aspects of contamination of electronic assemblies, from the manufacture of glass fibers used in the laminates to the complete assembly of the finished product. The authors present detection and control methods that can help you reduce defects during the manufacturing process. With tables, figures, and fishbone diagrams serving as a quick reference, Contamination of Electronic Assemblies will help you familiarize yourself with the origination, detection, measurement, control, and prevention of contamination in electronic assemblies.

Electronic Packaging Materials And Their Properties

Author : Michael Pecht
ISBN : 9781351830041
Genre : Technology & Engineering
File Size : 32. 80 MB
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Packaging materials strongly affect the effectiveness of an electronic packaging system regarding reliability, design, and cost. In electronic systems, packaging materials may serve as electrical conductors or insulators, create structure and form, provide thermal paths, and protect the circuits from environmental factors, such as moisture, contamination, hostile chemicals, and radiation. Electronic Packaging Materials and Their Properties examines the array of packaging architecture, outlining the classification of materials and their use for various tasks requiring performance over time. Applications discussed include: interconnections printed circuit boards substrates encapsulants dielectrics die attach materials electrical contacts thermal materials solders Electronic Packaging Materials and Their Properties also reviews key electrical, thermal, thermomechanical, mechanical, chemical, and miscellaneous properties as well as their significance in electronic packaging.

The Electronics Assembly Handbook

Author : Frank Riley
ISBN : 9783662131619
Genre : Technology & Engineering
File Size : 83. 85 MB
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The assembly of electronic circuit boards has emerged as one of the most significant growth areas for robotics and automated assembly. This comprehensive volume, which is an edited collection of material mostly published in "Assembly Engineering" and "Electronic Packaging and Production", will provide an essential reference for engineers working in this field, including material on Multi Layer Boards, Chip-on-board and numerous case studies. Frank J. Riley is senior vice-president of the Bodine Corporation and a world authority on assembly automation.

Adhesives Technology For Electronic Applications

Author : James J. Licari
ISBN : 1437778909
Genre : Technology & Engineering
File Size : 85. 92 MB
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Adhesives are widely used in the manufacture and assembly of electronic circuits and products. Generally, electronics design engineers and manufacturing engineers are not well versed in adhesives, while adhesion chemists have a limited knowledge of electronics. This book bridges these knowledge gaps and is useful to both groups. The book includes chapters covering types of adhesive, the chemistry on which they are based, and their properties, applications, processes, specifications, and reliability. Coverage of toxicity, environmental impacts and the regulatory framework make this book particularly important for engineers and managers alike. The third edition has been updated throughout and includes new sections on nanomaterials, environmental impacts and new environmentally friendly ‘green’ adhesives. Information about regulations and compliance has been brought fully up-to-date. As well as providing full coverage of standard adhesive types, Licari explores the most recent developments in fields such as: • Tamper-proof adhesives for electronic security devices. • Bio-compatible adhesives for implantable medical devices. • Electrically conductive adhesives to replace toxic tin-lead solders in printed circuit assembly – as required by regulatory regimes, e.g. the EU’s Restriction of Hazardous Substances Directive or RoHS (compliance is required for all products placed on the European market). • Nano-fillers in adhesives, used to increase the thermal conductivity of current adhesives for cooling electronic devices. A complete guide for the electronics industry to adhesive types, their properties and applications – this book is an essential reference for a wide range of specialists including electrical engineers, adhesion chemists and other engineering professionals Provides specifications of adhesives for particular uses and outlines the processes for application and curing – coverage that is of particular benefit to design engineers, who are charged with creating the interface between the adhesive material and the microelectronic device Discusses the respective advantages and limitations of different adhesives for a varying applications, thereby addressing reliability issues before they occur and offering useful information to both design engineers and Quality Assurance personnel

Handbook Of Electronic Package Design

Author : Michael Pecht
ISBN : 0824779215
Genre : Technology & Engineering
File Size : 24. 71 MB
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Both a handbook for practitioners and a text for use in teaching electronic packaging concepts, guidelines, and techniques. The treatment begins with an overview of the electronics design process and proceeds to examine the levels of electronic packaging and the fundamental issues in the development

Encapsulation Technologies For Electronic Applications

Author : Haleh Ardebili
ISBN : 0815519702
Genre : Technology & Engineering
File Size : 88. 6 MB
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Electronics are used in a wide range of applications including computing, communication, biomedical, automotive, military and aerospace. They must operate in varying temperature and humidity environments including indoor controlled conditions and outdoor climate changes. Moisture, ionic contamination, heat, radiation and mechanical stresses are all highly detrimental to electronic devices and can lead to device failures. Therefore, it is essential that the electronic devices be packaged for protection from their intended environments, as well as to provide handling, assembly, electrical and thermal considerations. Currently, more than 99% of microelectronic devices are plastic encapsulated. Improvements in encapsulant materials, and cost incentives have stretched the application boundaries for plastic electronic packages. Many electronic applications that traditionally used hermetic packages such as military are now using commercial-off-the-shelf (COTS) plastic packages. Plastic encapsulation has the advantages of low cost, smaller form factors, and improved manufacturability. With recent trends in environmental awareness, new environmentally friendly or ' green' encapsulant materials (i.e. without brominated additives) have emerged. Plastic packages are also being considered for use in extreme high and low temperature electronics. 3-D packaging and wafer-level-packaging (WLP) require unique encapsulation techniques. Encapsulant materials are also being developed for micro-electro-mechanical systems (MEMS), bio-MEMS, bio-electronics, and organic light-emitting diodes (O-LEDs). This book offers a comprehensive discussion of encapsulants in electronic applications. The main emphasis is on the encapsulation of microelectronic devices; however, the encapsulation of connectors and transformers is also addressed. This book discusses 2-D and 3-D packaging and encapsulation, encapsulation materials including environmentally friendly 'green' encapsulants, and the properties and characterization of encapsulants. Furthermore, this book provides an extensive discussion on defects and failures related to encapsulation, how to analyze such defects and failures, and how to apply quality assurance and qualification process for encapsulated packages. This book also provides information on the trends and challenges of encapsulation and microelectronic packages including application of nanotechnology. Guidance on the selection and use of encapsulants in the electronics industry, with a particular focus on microelectronics Coverage of environmentally friendly 'green encapsulants' Practical coverage of faults and defects: how to analyze them and how to avoid them

Integrated Circuit Hybrid And Multichip Module Package Design Guidelines

Author : Michael Pecht
ISBN : 0471594466
Genre : Technology & Engineering
File Size : 38. 93 MB
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Circuit designers, packaging engineers, printed board fabricators, and procurement personnel will find this book's microelectronic package design-for-reliability guidelines and approaches essential for achieving their life-cycle, cost-effectiveness, and on-time delivery goals. Its uniquely organized, time-phased approach to design, development, qualification, manufacture, and in-service management shows you step-by-step how to: * Define realistic system requirements in terms of mission profile, operating life, performance expectations, size, weight, and cost * Define the system usage environment so that all operating, shipping, and storage conditions, including electrical, thermal, radiation, and mechanical loads, are assessed using realistic data * Identify potential failure modes, sites, mechanisms, and architecture-stress interactions--PLUS appropriate measures you can take to reduce, eliminate, or accommodate expected failures * Characterize materials and processes by the key controllable factors, such as types and levels of defects, variations in material properties and dimensions, and the manufacturing and assembly processes involved * Use experiment, step-stress, and accelerated methods to ensure optimum design before production begins Detailed design guidelines for substrate...wire and wire, tape automated, and flip-chip bonding...element attachment and case, lead, lead and lid seals--incorporating dimensional and geometric configurations of package elements, manufacturing and assembly conditions, materials selection, and loading conditions--round out this guide's comprehensive coverage. Detailed guidelines for substrate...wire and wire, tape automated, and flip-chip bonding...element attachment and case, lead, lead and lid seals--incorporating dimensional and geometric configurations of package elements, manufacturing and assembly conditions, materials selection, and loading conditions--round out this guide's comprehensive coverage. of related interest... PHYSICAL ARCHITECTURE OF VLSI SYSTEMS --Allan D. Kraus, Robert Hannemann and Michael Pecht For the professional engineer involved in the design and manufacture of products containing electronic components, here is a comprehensive handbook to the theory and methods surrounding the assembly of microelectronic and electronic components. The book focuses on computers and consumer electronic products with internal subsystems that reflect mechanical design constraints, cost limitations, and aesthetic and ergonomic concerns. Taking a total system approach to packaging, the book systematically examines: basic chip and computer architecture; design and layout; interassembly and interconnections; cooling scheme; materials selection, including ceramics, glasses, and metals; stress, vibration, and acoustics; and manufacturing and assembly technology. 1994 (0-471-53299-1) pp. SOLDERING PROCESSES AND EQUIPMENT --Michael G. Pecht This comprehensive, fundamentals first handbook outlines the soldering methods and techniques used in the manufacture of microelectronic chips and electronic circuit boards. In a clear, easy-to-access format, the book discusses: soldering processes and classification; the material dynamics of heat soldering when assembling differing materials; wave and reflow soldering; controlling contamination during manufacturing cleanings; techniques for assuring reliability and quality control during manufacturing; rework, repair, and manual assembly; the modern assembly / repair station; and more. The book also provides clear guidelines on assembly techniques as well as an appendix of various solder equipment manufacturers. 1993 (0-471-59167-X) 312 pp.

Power Electronic Packaging

Author : Yong Liu
ISBN : 9781461410522
Genre : Technology & Engineering
File Size : 39. 37 MB
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Power Electronic Packaging presents an in-depth overview of power electronic packaging design, assembly,reliability and modeling. Since there is a drastic difference between IC fabrication and power electronic packaging, the book systematically introduces typical power electronic packaging design, assembly, reliability and failure analysis and material selection so readers can clearly understand each task's unique characteristics. Power electronic packaging is one of the fastest growing segments in the power electronic industry, due to the rapid growth of power integrated circuit (IC) fabrication, especially for applications like portable, consumer, home, computing and automotive electronics. This book also covers how advances in both semiconductor content and power advanced package design have helped cause advances in power device capability in recent years. The author extrapolates the most recent trends in the book's areas of focus to highlight where further improvement in materials and techniques can drive continued advancements, particularly in thermal management, usability, efficiency, reliability and overall cost of power semiconductor solutions.

Advanced Materials For Thermal Management Of Electronic Packaging

Author : Xingcun Colin Tong Ph.D
ISBN : 1441977597
Genre : Technology & Engineering
File Size : 23. 55 MB
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The need for advanced thermal management materials in electronic packaging has been widely recognized as thermal challenges become barriers to the electronic industry’s ability to provide continued improvements in device and system performance. With increased performance requirements for smaller, more capable, and more efficient electronic power devices, systems ranging from active electronically scanned radar arrays to web servers all require components that can dissipate heat efficiently. This requires that the materials have high capability of dissipating heat and maintaining compatibility with the die and electronic packaging. In response to critical needs, there have been revolutionary advances in thermal management materials and technologies for active and passive cooling that promise integrable and cost-effective thermal management solutions. This book meets the need for a comprehensive approach to advanced thermal management in electronic packaging, with coverage of the fundamentals of heat transfer, component design guidelines, materials selection and assessment, air, liquid, and thermoelectric cooling, characterization techniques and methodology, processing and manufacturing technology, balance between cost and performance, and application niches. The final chapter presents a roadmap and future perspective on developments in advanced thermal management materials for electronic packaging.

Electronic Packaging And Production

Author :
ISBN : UIUC:30112046035249
Genre : Electronic apparatus and appliances
File Size : 26. 8 MB
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