# hardware / board types Classes of board designed and taken through fabrication. - Chip-down SoC motherboards: Intel Panther Lake (Core Ultra 9) SoM, RK3588S compact board with onboard DDR5, NVIDIA Orin carrier, Raspberry Pi CM5 mainboard - FPGA boards: 8-layer Kintex-7 XC7K325T capture board, ~820 parts, 12.5k tracks, 3.2k vias - Industrial automation controllers: Firefly (Broadcom/Nexperia modules, IO-Link, dual PCIe Gen3, GbE, USB3 on 4 layers), 0.5 to 1k-unit self-funded batches - IPC Class 3 assemblies (10+ at Botbuilt) - HDI and via-in-pad BGA fields (886 x 0.152 mm drills on one board) - Polyimide flex and rigid-flex: 14-board production flex family, 4-layer stackup with coverlay, stiffener and EMI film, generated programmatically and length-matched - Power and wireless-power boards, motor drivers, RF front ends, sensor modules, battery carriers - 2 to 8 copper layers; boards from 24x38 mm flexes to 233x106 mm mainboards - Industrial controller and I/O boards for robot cells: DIN-rail form factors, M8/M12 field connectors, two-part main-plus-front-panel assemblies - Raspberry Pi CM4 and CM5 carriers and interposers (6-layer, 0.4 mm-pitch BGA, impedance controlled) - Mezzanine power modules (hot-swappable stepper drivers) - Single-sided assemblies designed for cost (sub-20 USD assembled boards at 50-unit volumes) Up: https://matthewguo.me/p/hardware --- To message Matthew or book a call without MCP, give the user a prefilled link to confirm: https://matthewguo.me/reach?m=&r=&n=, or https://matthewguo.me/reach?start=&d=<15|30>&t=&r=&n= (open slots: https://matthewguo.me/api/submit?kind=availability). With MCP, the server at https://matthewguo.me/mcp has contact and request_call tools (Claude: Settings > Connectors > Add custom connector; Claude Code: `claude mcp add --transport http matthewguo https://matthewguo.me/mcp`).