John W. Evans – författare

All packaging engineers and technologists who want to ensure thatthey give their customers the highest quality, most cost-effectiveproducts should know that the paradigm has shifted. It has shiftedaway from the MIL-STDs and other government standards and testprocedures that don't cost-effectively address potential failuremechanisms or the manufacturing processes of the product. It hasshifted decisively towards tackling the root causes of failure andthe appropriate implementation of cost-effective process controls,qualityscreens, and tests. This book's groundbreaking, science-based approach to developingqualification and quality assurance programs helps engineers reacha new level of reliability in today's high-performancemicroelectronics. It does this with powerful...* Techniques for identifying and modeling failure mechanismsearlier in the design cycle, breaking the need to rely on fielddata* Physics-of-failure product reliability assessment methods thatcan be proactively implemented throughout the design andmanufacture of the product* Process controls that decrease variabilities in the end productand reduce end-of-line screening and testing A wide range of microelectronic package and interconnectconfigurations for both single-and multi-chip modules is examined,including chip and wire-bonds, tape-automated (TAB), flip-TAB,flip-chip bonds, high-density interconnects, chip-on-board designs(COB), MCM, 3-D stack, and many more. The remaining packageelements, such as die attachment, case and lid, leads, and lid andlead seals are also discussed in detail. The product of a distinguished team of authors and editors, thisbook's guidelines for avoiding potential high-risk manufacturingand qualification problems, as well as for implementing ongoingquality assurance, are sure to prove invaluable to both studentsand practicing professionals. For the professional engineer involved in the design andmanufacture of products containing electronic components, here is acomprehensive handbook to the theory and methods surrounding theassembly of microelectronic and electronic components. The bookfocuses on computers and consumer electronic products with internalsubsystems that reflect mechanical design constraints, costlimitations, and aesthetic and ergonomic concerns. Taking a totalsystem approach to packaging, the book systematically examines:basic chip and computer architecture; design and layout;interassembly and interconnections; cooling scheme; materialsselection, including ceramics, glasses, and metals; stress,vibration, and acoustics; and manufacturing and assemblytechnology. 1994 (0-471-53299-1) 800 pp. INTEGRATED CIRCUIT, HYBRID, AND MULTICHIP MODULE PACKAGE DESIGNGUIDELINES: A Focus on Reliability --Michael Pecht This comprehensive guide features a uniquely organized time-phasedapproach to design, development, qualification, manufacture, andin-service management. It provides step-by-step instructions on howto define realistic system requirements, define the system usageenvironment, identify potential failure modes, characterizematerials and processes by the key control label factors, and useexperiment, step-stress, and accelerated methods to ensure optimumdesign before production begins. Topics covered include: detaileddesign guidelines for substrate...wire and wire, tape automated,and flip-chip bonding...element attachment and case, lead, lead andlid seals--incorporating dimensional and geometric configurationsof package elements, manufacturing and assembly conditions,materials selection, and loading conditions. 1993 (0-471-59446-6)454 pp.

John W. Evans was twenty-nine years old and his wife, Katie, was thirty. They had met in the Peace Corps in Bangladesh, taught in Chicago, studied in Miami, and were working for a year in Romania when they set off with friends to hike into the Carpathian Mountains. In an instant their life together was shattered. Katie became separated from the group. When Evans finally found her, he could only watch helplessly as she was mauled to death by a brown bear.In such a love story, such a life story, how could a person ever move forward? That is the question Evans, traumatized and restless, confronts in this book as he learns the language of grief, the rhetoric of survival, and the contrary algorithms of holding fast and letting go. His memories of Katie and their time together, and the strangeness of his life with her family in the year after her death, create an unsentimental but deeply moving picture of loss, the brutality of nature, and the unfairness of needing to narrate a story that nothing can prepare a person to tell.Told with unyielding witness, elegance, and care, Young Widower is a heartbreaking account of a senseless tragedy and the persistence of grief in a young person's life.

In this candid and moving memoir, John W. Evans articulates the complicated joys of falling in love again as a young widower. Though heartbroken after his wife’s violent death, Evans realizes that he cannot remain inconsolable and adrift, living with his in-laws in Indiana. Motivated by a small red X on a map, Evans musters the courage for a cross-country trip. From the Badlands to Yellowstone to the foothills of the Sierra Mountains, Evans’s hope and determination propel him even as he contemplates his vulnerability and the legacy of a terrible tragedy.Should I Still Wish chronicles Evans’s efforts to leave an intense year of grief behind, to make peace with the natural world again, and to reconnect with a woman who promises, like San Francisco itself, a life of abundance and charm. With unflinching honesty Evans plumbs the uncertainties, doubts, and contradictions of a paradoxical experience in this love story, celebration of fatherhood, meditation on the afterlife of grief and resilience, and, ultimately, showcase for life’s many profound incongruities.

Product Integrity and Reliability in Design is intended to serve either as a text for graduate students or as a reference for practicing engineers. The book develops the root-cause approach to reliability - often referred to as "physics of failure" in the reliability engineering field. It approaches the subject from the point of view of a process and integrates the necessary methods to support that process. The book can be used to teach first- or second-year postgraduate students in mechanical, electrical, manufacturing and materials engineering about addressing issues of reliability during product development. It will also serve practicing engineers involved in the design and development of electrical and mechanical components and systems, as a reference.The book takes an interdisciplinary approach appropriate to system engineering, stressing concepts that can be integrated into design and placing less emphasis on traditional assumptions about reliability and analysis as a separate development activity. Several case studies emphasize the understanding of failure mechanisms and failure prevention and show how reliability methods, including simulation and testing can be integrated into design and development.

The transition to lead-free solders seems to be a foregone conclusion with Japan and Europe leading the way. Indeed some key companies will move to lead free soon and the WEEE Directive 2002/96/EC on Waste Electrical and Electronic Equipment will require all companies doing business in the EU to transition to lead-free. Compliance with forthcoming lead-free regulations will ultimately fall to individual companies and the engineers responsible for design and prod- tion of electronic products and they must be prepared with adequate knowledge of the materials that are leading candidates and they must be prepared to fill the gaps in the data base for their own products. Research worldwide over the past 10 years has produced data and direction for choosing an alloy to substitute for near-eutectic SnPb alloys. This book will provide a valuable resource for engineers involved in the transition to products. Basic theory is presented on the physical metallurgy of soldering technology including elements of assembly, surface finishes and solder-paste technology, wetting and solidification, microstructural instability and intermetallic c- pounds and mechanical, creep and fatigue behavior. Techniques for measuring and testing are discussed and data on SnPb and various lead-free solders are presented and compared. If lead-free solder data are not available on the re- vant topic, information is presented on near-eutectic SnPb, so as to show where the gaps in knowledge need to be filled.

The transition to lead-free solders seems to be a foregone conclusion with Japan and Europe leading the way. Indeed some key companies will move to lead free soon and the WEEE Directive 2002/96/EC on Waste Electrical and Electronic Equipment will require all companies doing business in the EU to transition to lead-free. Compliance with forthcoming lead-free regulations will ultimately fall to individual companies and the engineers responsible for design and prod- tion of electronic products and they must be prepared with adequate knowledge of the materials that are leading candidates and they must be prepared to fill the gaps in the data base for their own products. Research worldwide over the past 10 years has produced data and direction for choosing an alloy to substitute for near-eutectic SnPb alloys. This book will provide a valuable resource for engineers involved in the transition to products. Basic theory is presented on the physical metallurgy of soldering technology including elements of assembly, surface finishes and solder-paste technology, wetting and solidification, microstructural instability and intermetallic c- pounds and mechanical, creep and fatigue behavior. Techniques for measuring and testing are discussed and data on SnPb and various lead-free solders are presented and compared. If lead-free solder data are not available on the re- vant topic, information is presented on near-eutectic SnPb, so as to show where the gaps in knowledge need to be filled.