Electronic Schematic Capture Software

Design environments

External Links

• Altium
• gEDA
• KiCad

My Pages

• Eagle PCB Schematic Capture and Board LayOut

Libraries Online

• Microchip PCB footprints and schematic symbols available for download in a vendor neutral format

PC Board Fabricators

• Olimex – allows more than one board design to be panelized

PCB Fabrication Tips

• PCB Scoring – to separate like crackers
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PCB Materials

• Dielectrics – Includes a graph with FR-4 dielectric constants that explains Dk versus glass / resin ratio and with frequency
• Isola G200 which as a Dk ~3.7 and 1/2 the loss of Fr-4. I think it is a BT epoxy like recipe
• Isola 370HR laminate
• Taconics paper on measuring Dk with Bereskin method
• IPC-TM-650 TEST METHODS MANUAL
• Isola IS620i high performance material – looks very reminiscent of Rogers 4350