Proactive Design for Test (DFT) best practices
The process of PCB DFT needs to be considered sooner and more proactively in our PCB design process, incorporated in the schematic phase, not during the layout phase. A designer should determine what nets will be needed to be tested based on their likelihood of failure and position those pins in open, accessible real-estate.
What is Design for Manufacturing?
PCB DFM looks at all factors that may impact the manufacturability of a PCB design, such as assembly, fabrication, flex/rigid-flex, microvia, panel and substrate. It should also consider whether SMT component placement and soldering can be conducted automatically to reduce costs. DFM can involve general manufacturing specifications and/or the specifications of a specific manufacturer.
The last step in PCB design needs more attention
We put a lot of attention on the first step of a process and then it seems we fall behind schedule. By the time you get to the last step of a process you are out of time and just need to wrap things up. How often are you pressed by management to get a PCB design out the door and sent to the fab house?