Mixed-Signal KiCad Medical PCB

I’m developing a small (35x45mm) (10 IC) 6-layer mixed-signal board that will sit inside a handheld medical device, and I already have a first-pass KiCad schematic and PCB layout that passes all ERC/DRC error checks. What I need now is an experienced set of eyes to refine that schematic and carry it through to a production-ready PCB layout. Its based on an ST Micro STM32WBA65R1, so I would also like to verify the 3 SPI and 3 I2C busses, and GPIO's are connected to the appropriate pin. I have the ST Cube Mx .ioc file, which just needs to looking over. *Scope* • Review and clean up the existing KiCad schematic, flagging any component, power-tree, or net-naming issues that could affect a Class II mixed-signal medical design. Its six layers with dual ground planes, a signal and a pwr layer. • Create (or redo) the PCB layout in KiCad, paying close attention to analogue–digital partitioning, ground plane strategy, differential pair routing, controlled impedance, and low-noise power distribution. • Optimize the stack-up for manufacturability and future EMC/EMI testing. • Produce all manufacturing outputs—Gerbers, drill files, pick-and-place, and a BOM tied to realistic lead times. Acceptance The design will be considered complete once it loads error-free in the latest public KiCad release, passes all DRC/ERC tests I provide, and the Gerbers drop straight into JLCPCB’s viewer without red flags. If you have a track record with mixed-signal KiCad boards and ST Micro/Analog Devices components in regulated environments, I’d love to work with you. I will have follow-up projects for debugging and writing firmware for the same project, and if this works out a couple more projects in the pipeline.

Project ID: 40405129