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BoardTalk had its humble beginnings as a SMT expert Q&A session with Phil Zarrow and Jim Hall at an SMTAI conference. Ten years and over 200 episodes later, the "Assembly Brothers - Pick and Place" have transcribed their informative discussions from CircuitInsight.com, where BoardTalk is streamed all over the world.
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.
The NASA Constellation Program is investigating and developing technologies to support human exploration of the Moon and Mars. The Component-Level Electronic-Assembly Repair (CLEAR) task is part of the Supportability Project managed by the Exploration Technology Development Program. CLEAR is aimed at enabling a flight crew to diagnose and repair electronic circuits in space yet minimize logistics spares, equipment, and crew time and training. For insight into actual space repair needs, in early 2008 the project examined the operational experience of the International Space Station (ISS) program. CLEAR examined the ISS on-orbit Problem Reporting and Corrective Action database for electrical and electronic system problems. The ISS has higher than predicted reliability yet, as expected, it has persistent problems. A goal was to identify which on-orbit electrical problems could be resolved by a component-level replacement. A further goal was to identify problems that could benefit from the additional diagnostic and test capability that a component-level repair capability could provide. The study indicated that many problems stem from a small set of root causes that also represent distinct component problems. The study also determined that there are certain recurring problems where the current telemetry instrumentation and built-in tests are unable to completely resolve the problem. As a result, the root cause is listed as unknown. Overall, roughly 42 percent of on-orbit electrical problems on ISS could be addressed with a component-level repair. Furthermore, 63 percent of on-orbit electrical problems on ISS could benefit from additional external diagnostic and test capability. These results indicate that in situ component-level repair in combination with diagnostic and test capability can be expected to increase system availability and reduce logistics.
This document captures the system architecture for a Component-Level Electronic-Assembly Repair (CLEAR) capability needed for electronics maintenance and repair of the Constellation Program (CxP). CLEAR is intended to improve flight system supportability and reduce the mass of spares required to maintain the electronics of human rated spacecraft on long duration missions. By necessity it allows the crew to make repairs that would otherwise be performed by Earth based repair depots. Because of practical knowledge and skill limitations of small spaceflight crews they must be augmented by Earth based support crews and automated repair equipment. This system architecture covers the complete system from ground-user to flight hardware and flight crew and defines an Earth segment and a Space segment. The Earth Segment involves database management, operational planning, and remote equipment programming and validation processes. The Space Segment involves the automated diagnostic, test and repair equipment required for a complete repair process. This document defines three major subsystems including, tele-operations that links the flight hardware to ground support, highly reconfigurable diagnostics and test instruments, and a CLEAR Repair Apparatus that automates the physical repair process. Oeftering, Richard C. and Bradish, Martin A. and Juergens, Jeffrey R. and Lewis, Michael J. and Vrnak, Daniel R. Glenn Research Center CONSTELLATION PROGRAM; SPACE LOGISTICS; ELECTRONICS; TELEOPERATORS; SYSTEMS ENGINEERING; SPACECRAFT COMPONENTS; MANAGEMENT PLANNING; SPACECRAFT MAINTENANCE; LONG DURATION SPACE FLIGHT; FLIGHT CREWS; COMMAND AND CONTROL
"Circuit Design Laws: A Handbook for Electronic Assembly" is an essential guide for anyone involved in the design, assembly, and production of electronic circuits. This comprehensive book serves as a one-stop resource, providing readers with a deep understanding of the fundamental principles, best practices, and industry standards related to circuit design and electronic assembly. The book begins with an introduction to the basic concepts of circuit design, including an overview of electronic components, circuit analysis, and common design techniques. It emphasizes the importance of adhering to design laws and industry standards to ensure the safety, functionality, and reliability of electronic assemblies. As readers navigate through the chapters, they will delve into the different types of circuit design laws and how they apply to specific aspects of electronic assembly. This includes laws pertaining to power distribution, signal integrity, electromagnetic compatibility (EMC), thermal management, and safety considerations. Each law is explained in detail, along with practical examples and case studies that illustrate their application in real-world scenarios. The handbook also covers essential topics such as component selection and placement, soldering techniques, trace routing guidelines, and manufacturing processes. It emphasizes the importance of design for manufacturability (DFM) and provides valuable insights on how to optimize circuit designs for efficient and cost-effective assembly. One of the key strengths of "Circuit Design Laws" is its practical approach. Throughout the book, readers will find step-by-step instructions, design checklists, and troubleshooting tips to help them apply these design laws effectively in their own projects. The book also includes a comprehensive set of design templates and tools that can be used as a starting point for various types of circuit designs. "Circuit Design Laws: A Handbook for Electronic Assembly" is not just a reference book but also a valuable tool for professionals and enthusiasts alike. With its clear explanations, practical examples, and comprehensive coverage of circuit design laws, this handbook empowers readers to create robust and reliable electronic assemblies that meet industry standards and perform optimally in their intended applications. By having this book by their side, designers, engineers, hobbyists, and students alike will be well-equipped to turn their circuit designs into successful, market-ready products while adhering to the essential laws and principles of electronic assembly.