PCB (Printed Circuit Board) fabrication etching lithography, transfer, print ferric/cupric chloride, ammonium/sodium persulfate citric acid, peroxide SDS water consumption waste machining machines MTM tools 0.010 1/64 1/32 V-bits tapered bits contouring bits fixturing underlay orientation zeroing set-screws lifetime deburring cleaning climb vs conventional vinyl cutter flex connections encapsulation milling laser cutter printing conducting inks plating sewing PCB materials rigid FR4 (epoxy glass) FR1 (phenolic paper) garolite flex Kapton, Pyralux #1 epoxy film, #1126 copper tape high-frequency teflon glass copper 0.5 oz: 17.5 um 1.0 oz: 35 um 2.0 oz: 70 um board houses OSH Park, JLCPCB, PCBWay, Screaming Circuits, Macrofab, DKRed, Advanced, PCB:NG, Sierra, Eurocircuits, AQS, Gold Phoenix, 3PCB, Seeed, Think & Tinker PCB, kit, BOM design rules width/spacing (15, 5 mils) layers 1, 1.5, 2, 2+, 4, N mechanical, drill, solder mask, silk screen vias wires, rivets, plated, blind, buried components through-hole surface-mount chip-scale breadboards assembly solder iron station fume extractor burns ROHS types lead-free wire paste SDS leaded wire paste SDS low-temp wire paste eutectic tinning wetting manual, drag, wave cold solder joints, checking joints flux core, paste, pen reflow hot air, hot plate, oven, IR magnifying stuffing component orientation tacking down parts bottom to top, inside to outside fumes washing desoldering braid tweezers vacuum hot air gravity cutting traces, adding jumpers pick-and-place encapsulation CAM formats Gerber/RS-274X png resolution FlatCAM pcb2gcodecam.pycad.pykokompefab modulesmods community edition video trace width traces traces+exterior interior 1/64" 0.010" fiber laser assignment group assignment: characterize the design rules for your in-house PCB production process extra credit: send a PCB out to a board house individual assignment: make and test the development board that you designed to interact and communicate with an embedded microcontroller extra credit: make it with another process
