The average PCB design undergoes an average of 2.9 respins, according to a recent Lifecycle Insights study-stark evidence that DFM is not being embraced by all stakeholders. But the DFM process itself is clearly not as effective as it could be. For many companies, a “DFM check” equals a successful design. I’ll be fine.ĭFM has a positive connotation in our minds. I’ve moved on to another design.įabricator: You’ve moved on? Well, isn’t that just peachy! Just leave me to clean up your mess. Sorry about that.įabricator: Yeah, well, a little late for sorry.ĭesigner: I can’t even remember. And when Friday afternoon rolls around, the accusatory phone calls start:įabricator: Why didn’t you mention that you wanted controlled impedance on certain layers?ĭesigner: I thought I told you in the fab notes. The spouses get along well, but they often give each other the silent treatment all week. If designers and manufacturers actually embrace this concept, DWM could do what DFM was never able to do: create a transparent communication environment for designers, fabricators, assemblers, and component and materials suppliers.Įven today, after two decades of talk about the need for DFM, the designer-manufacturer relationship resembles a happy but bumpy marriage. The newest example is DWM, design with manufacturing, and this “design for” could wind up having a real effect on the PCB development process. We now have DFX, DFR, and even DFSC-design for supply chain. Especially the “design fors” such as DFM, DFA, and DFT. In our industry, we just love our acronyms.
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