Issue link: https://iconnect007.uberflip.com/i/1487920
44 DESIGN007 MAGAZINE I DECEMBER 2022 9121 course all rolled into one. It shows the complexity of the pro- cess and how designs can affect the process flow, yield, quality, etc. We talk about reliability, for example, of how something like via size can be affected by aspect ratio, layer count, drill parame- ters, desmear, and material selec- tion and how they would all inter- act with each other to affect yield, cost, and reliability. Why should someone attend your class? It's for anyone wanting to increase their knowledge of the fabrication process. It is aimed at designers and process engineers at any level. e course is designed to be inter- active with a lot of questions and hopefully 30 years of knowledge transfer. Time permit- ting, we may get to cover some emerging tech- nologies. is sounds like a great class for PCB designers. What are some of the trade- offs designers should be aware of that can affect yield and reliability? There are many factors affect- ing yield, reliability, and ulti- mately cost. We will look at each part of the process, discussing how each can be affected, which attri- butes of the design have the most impact on yield improvement, and how the fabricator achieves the desired level of release. What is the most important piece of advice you would give your attendees? Attend the course with a lot of questions and take a lot of notes as we will cover a mountain of information. By the end I hope they have a comprehensive knowledge of the process and learn to always talk to a field appli- cation engineer prior to setting out on a new type of design, to eliminate any changes later due to cost, capability, yield, etc. Is there anything else you'd like to add? I hope the attendees all enjoy the course, and I am always looking for feedback, good or bad, so that I can adapt and improve for future classes. DESIGN007 Paul Cooke