How would you go about designing a PCB with weight constraints?

Suppose, the PCB has a weight constraint that say it must weight less than 140 grams. It is a for a portable medical device. How do I design it?

PCB Design
November 3, 2023

If you are really concerned about weight, you can always try ordering PCBs made with a different material.

Most PCBs (I think) are made with FR4 but you could get them made with Polyimide which is lighter.
You could even make thinner PCBs. On Advanced Circuits you can order PCBs as thin as 0.02″ for a 2 or 4 layer board but that might be extreme.
Since you are gonna have on-board connectors you can stick/glue the PCB on some other light but sturdy material (assuming all your components face up/are on the same side of your board).
Now. the only weight you’ll really have in my opinion are the ICs.

#PCB Design #Medical

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

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