PCB Chat

In recent episodes, we’ve covered high-level issues, such as hiring best practices, novel, training, methods, design for manufacturing, highly accelerated, life, testing, and more. On this episode, we’re going to go back to the basics. What common problems are assemblers experiencing today? What are the basics of assembly best practices? Which problems seem to live in perpetuity? To answer these and other questions, I’ve invited two of my favorite experts on to the show. If you’ve been in the electronics assembly industry for some amount of time, there’s little doubt you’ve heard of Phil Zarrow and Jim Hall. Phil has been involved with PCB fabrication and assembly for more than 36 years. He is president and principal consultant of ITM Consulting. Jim Hall has been involved in the electronics assembly industry for the past 27 years. He’s a principal consultant and resident Lean Six Sigma Master Black Belt with ITM Consulting. He’s also an instructor in the Lean Six Sigma programs offered at Dartmouth College. Together with Dr. Ron Lasky, Phil and Jim designed the SMTA’s SMT Processes Certification Course. A couple of years ago, Phil and Jim published a book titled “Troubleshooting Electronic Assemblies, Tales from the Board-Talk Crypt.” Mike Konrad talks to them more about that book later in this broadcast. Phil and Jim host the popular audio series “Board Talk,” a question-and-answer show hosted on the Circuit-Insight website. On their show, you’ll hear serious questions, and often comical but real answers.  

Moisture. The industrial world has been fighting moisture since the beginning of the industrial world. From a general point of view, moisture leads to issues such as Mold and mildew Rust Wood rot Damage to building materials Microbial growth And so much more. In the electronics world, moisture creates a host of reliability problems including: Popcorning Delamination of conformal coating Corrosion Electrochemical migration Adhesion degradation (such as on labels and glues) And more. We wanted to dive into moisture mitigation, so Mike Konrad invited two guests to discuss this very topic. Dan Jenkins is sales manager and partner of the Steel Camel, an industrial solutions company specializing in corrosion and water intrusion control for fuel systems and industrial equipment. Prior to Steel Camel, Dan worked as consultant and instructor in the crane accident prevention industry. He has consulted to large organizations such as Shell Oil, and the United States Department of Interior. Dan earned an MBA from the University of South Florida and earned his BA in Industrial Arts / Technology from Cal St. University Chico and his Post-Secondary Teaching Credential from San Francisco State University.   Bob Lowry has bachelor's and master's degrees in chemistry. His experience includes 31 years as sr. scientist and lab manager for three integrated circuit manufacturing companies, where measurement of moisture and moisture control activities were a major part of services he provided. He has 20 years of experience consulting to the microelectronics industry on a wide variety of topics including materials analysis and measurements and methods of moisture control for electronic components. Bob is also coauthor of the book Hermeticity of Electronic Packages.   Dan Jenkins' contact info: djenkins@steelcamel.com https://www.steelcamel.com/   Bob Lowry's contact info: rlowry98@aol.com

As all of you are well aware, Reliability Matters is all about reliability, specifically reliability of circuit assemblies. One challenge that seems to be persistent within our space is design for manufacturability, or DfM. If you’re a contract manufacturer, no doubt you’ve had the experience of being asked to build a product that seems unbuildable. One example that rings true was the introduction of bottom terminated components or BTCs. BTC’s are marvelous components. Because all the lead terminations are below the part, they permit highly dense component placement and highly miniaturized assemblies. They also presented a number of unique challenges in reflow, in many cases voiding, cleaning, and inspection. Like many other industries, we are not immune to the introduction of new technologies that may lack implementation knowledge. We then spend the next several years at technical conferences and symposiums learning us how to implement these new technologies. There are many acronyms in our industry that begin with Df…  Design for testability, mechanical assembly, serviceability, reliability, and so many more. So many in fact, that there is a placeholder acronym for all of the various design fours refer to as DFx. Perhaps the holy grail of DFx is DfM (design for manufacturability) as it encompasses so many aspects of assembly. Today Andrew Williams helps us understand what exactly DFM is. He is engineering manager for electronics manufacturing at PRIDE Industries. He has more than 30 years of experience in manufacturing and design and holds an SMT Process Engineer certification from SMTA and an IPC Certified Electronics Program Manager. He is a guest lecturer at UC Davis and Cal State University Sacramento for Supply Chain Management, Operations, and TQM courses, and speaks frequently on DfM, DfS, and other DfX topics.

Industry icon Dave Hillman completed a 3,600 mile solo kayak journey down the Missouri River. Mike Konrad spoke with Dave about the inspiration for the journey, insights gained over his four-month expedition, and how his experience as an engineer helped him prepare for this epic experience. This episode features many photographs taken by Dave Hillman on his journey. The video version showing the photographs is accessible here: https://youtu.be/7bThR5FQwHI

David Schild, executive director of the Printed Circuit Board Association of America (PCBAA), discusses the latest government policy and legislation for printed circuit board manufacturing in the US, the roadmap for government investment, the trade group's recent annual meeting in Washington, and "exposing the flaw" in the US Defense Department's procurement process. PCBAA was founded in 2021 to advance US domestic production of PCBs and base materials. The organization is made up of corporate members of all sizes, and includes fabricators, assemblers and suppliers. This episode of PCB Chat is sponsored by PCB West, The Largest Conference and Exhibition for Printed Circuit Board Design, Fabrication and Assembly in the Silicon Valley, coming September 19-22 to the Santa Clara (CA) Convention Center.

Thermal interface materials are used for heat transfer in a variety of electronics applications. On this episode of PCB Chat, Claire Wemp, Ph.D, a thermal applications engineer at DuPont, discusses TIM1 materials (and explains the difference between TIM1 and TIM2), when and where they are used, who specifies them, and how they work. Wemp is also a member of the Society Women in Electronics, and in the second half of the podcast we talk about her experience in SWE, which dates to college, DuPont's role in recruiting, and how to bend the curve in attracting more women to STEM fields.  

We all strive to build products that are reliable. If you’re listening to this podcast, chances are you are concerned about or at least interested in reliability. Where does reliability start? Who is responsible for reliability? What types of reliability testing can be performed? Mike Konrad's guest on this episode will help answer these and other reliability-based questions. Dr. Christopher Jackson is a leader, engineer and logistic specialist who has helped many organizations work toward realizing business goals through improving the reliability of their products and processes. He is cofounder of online training company IS4, founder of Acuitis Reliability, established the Center for the Safety and Reliability of Autonomous Systems (SARAS) at UCLA after retiring as a lieutenant colonel having served 17 years in the Australian Army, where he was senior reliability engineer. Dr Jackson completed his Ph.D. in reliability engineering at the University of Maryland in 2011. Dr. Jackson has authored multiple reliability and management textbooks and teaches both professional education courses and post-graduate courses. Industries he has helped range from small satellites through to military vehicles. He is a Certified Reliability Engineer (CRE) through the American Society of Quality (ASQ), a member of the Institute of Engineers, Australia (MIEAust) and a Chartered Professional Engineer (CPEng). Dr. Jackson's contact information: chris.jackson@acuitas.com https://www.acuitas.com

The PCB/MCM design software market grew in the first quarter 2023, the ninth straight quarter of growth, according to the latest data from the ESD Alliance. Mike Buetow speaks with Wally Rhines, ESD Alliance spokesperson, and Merlyn Bruncken, market intelligence director with Siemens Digital Industries, about the record quarter, booming employment in the sector, and why the recovery in Japan be lagging the rest of the world.

When it comes to circuit assemblies, defects result in one of two situations. The preferred result of a defect is to capture it on your factory floor and repair it before it ships to the customer. The second scenario is referred to as an escape. That’s when the board ships to the customer and fails in the field. This is a scenario, all assemblers dread and strive to prevent. One way to prevent escapes is through the use of automated inspection or AOI systems. Mike Konrad's guests are Arif Virani, chief operating officer and cofounder of Darwin AI, and Bart Piwowar, CTO of Darwin AI, a manufacturer of innovative inspection systems. Virani is a technology leader with over 20 years of experience in the industry. He spearheads the company’s mission to transform manufacturing with a new standard for quality inspection using AI. DarwinAI’s solutions have been implemented at top electronics manufacturers to increase quality and efficiency while reducing waste. DarwinAI was selected by CBInsights for its AI 100 annual list of the 100 most promising private AI companies in the world in both 2020 and 2021. Before founding DarwinAI, Virani had a successful career in management consulting at McKinsey & Co., where he advised Fortune 500 enterprises on technology investments and transformation. He led several technology-enabled programs, including building and commercializing data and analytics capabilities. Virani started his career working as a software developer at various technology companies. In addition to his work at DarwinAI, Virani is an Advisory Board Member of NGEN Canada’s AI for Manufacturing Initiative. He has a master’s in business administration from the University of Pennsylvania’s Wharton School and a bachelor’s in applied science (computer engineering) from the University of Waterloo. Piwowar is an experienced product leader, leading high-performing product teams driven by data to deliver solutions that solve customer's problems. He has spent many years leading data science teams, applying Innovation methodologies, and working with emerging technologies to bring solutions in many disciplines. He graduated from University of Waterloo with a degree in physics and computing and followed with an MBA from Wilfrid Laurier University. Piwowar's career interests range from AI product development, decision science and entrepreneurship. 

It goes without saying finding talent is a big deal in electronics design and manufacturing. John Watson is customer success manager at Altium, with more than 20 years' experience as a senior PCB designer. Watson also teaches classes on printed circuit design at Palomar Community College in San Marcos, CA. We discuss the Printed Circuit Board Design and Advanced Printed Circuit Board Design curricula, other related courses offered at Palomar, and why he emphasizes hand routing over autorouting. Palomar's website is palomar.edu. Watson may be reached at jwatson@palomar.edu or 619-886-8860. Watson will also participate on the Next-Generation Engineers panel at PCB West this year. The conference takes place Sept. 19-22, at the Santa Clara CA Convention Center. The panel takes place on Sept. 20, same day as the exhibition, and is free to attend; register at pcbwest.com.