Issue link: https://iconnect007.uberflip.com/i/1493016
REAL TIME WITH... IPC APEX EXPO 2023 SHOW & TELL MAGAZINE I I-CONNECT007 57 REAL TIME WITH... IPC APEX EXPO 2023 SHOW & TELL MAGAZINE I I-CONNECT007 57 In terms of sustainability, that is its biggest advantage. So, this is a generally applicable technology. Do you think this could be industry-wide? Yes, at least for acidic cupric chloride etching systems, which is what we investigated spe- cifically. Let's dive into your methods. How did you come up with your findings? We ran a number of experiments where we varied flow rates and all sorts of different things, including copper concentration, and this method proved effective and feasible. We were able to reach our goal. We were also able to regenerate the system, which is good because obviously the resin needs to be reused. You wouldn't just run one cycle and throw it away. It's easy to regenerate. This uses a superior acid electrolyte, from which the copper can be plated out. This method has no adverse effects, unlike plating directly from etching, which can generate chlorine gas and is not good for your health. You mentioned that this method is more cost effective. Can you elaborate on that? Based on our preliminary data and some scale-up calculations, this method is much less costly than current systems. Our analysis showed that in terms of material cost, the vol- ume of organic solvent used at GreenSource— just the organic solvent itself—is more expen- sive than the cost of building this system. That's significantly less expensive. This new method has the potential to be very impactful for the industry. Thanks for taking the time to talk to us about that. Thank you. S&T Derek Lovejoy discusses his Best Student Technical Paper in this video. IPC Best Technical Paper Award