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8 DESIGN007 MAGAZINE I JUNE 2022 In our industry, we just love our acronyms. Especially the "design fors" such as DFM, DFA, and DFT. We now have DFX, DFR, and even DFSC—design for supply chain. e newest example is DWM, design with manufacturing, and this "design for" could wind up having a real effect on the PCB devel- opment process. If designers and manufactur- ers actually embrace this concept, DWM could do what DFM was never able to do: create a transparent communication environment for designers, fabricators, assemblers, and com- ponent and materials suppliers. Even today, aer two decades of talk about the need for DFM, the designer-manufacturer relationship resembles a happy but bumpy marriage. e spouses get along well, but they oen give each other the silent treatment all week. And when Friday aernoon rolls around, the accusatory phone calls start: Fabricator: Why didn't you mention that you wanted controlled impedance on certain layers? Designer: I thought I told you in the fab notes. Sorry about that. Fabricator: Yeah, well, a little late for sorry. Designer: I can't even remember. I've moved on to another design. Fabricator: You've moved on? Well, isn't that just peachy! Just leave me to clean up your mess. Don't worry about me. I'll be fine. Designer: Here you go again… DFM has a positive connotation in our minds. For many companies, a "DFM check" The Shaughnessy Report by Andy Shaughnessy, I-CONNECT007 Will DWM Unite the Product Development Family?

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