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other:kicad_overview [2020/04/25 12:07] – [Part 2: Create a Schematic Symbol] formlab | other:kicad_overview [2020/04/30 06:01] – [Part 2: Create a Schematic Symbol] formlab | ||
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**set design rules** | **set design rules** | ||
- | Set following values according to PCB manufacturer. The values here are an example. | + | Set following values according to PCB manufacturer. The values here are set by [Seeed Studio ](https:// |
* '' | * '' | ||
- | * Solder mask: '' | + | * Solder mask: '' |
* '' | * '' | ||
- | * Min track width: '' | + | * Minimum |
- | * Min via diameter: '' | + | * Minimum |
- | * Min via drill diameter: '' | + | * Minimum |
* '' | * '' | ||
- | * Clearance: '' | + | |
- | * Track Width: '' | + | |
- | * Via size: '' | + | * Track Width: '' |
- | * Via Drill: '' | + | * dPair Width: '' |
- | | + | * dPair gap: '' |
+ | | ||
+ | * Via Drill: '' | ||
+ | * Power class (for power and GND traces) | ||
+ | * Clearance: '' | ||
+ | * Track Width: '' | ||
+ | * dPair Width: '' | ||
+ | * dPair gap: '' | ||
+ | | ||
+ | * Read manufacturers specifications and panelization pages carefully. | ||
+ | |||
+ | **Part layout** | ||
+ | * move your parts to the locations you'd like them to be. Hover your mouse over a part and press '' | ||
+ | * Try to make the air-wire structure as simple as possible. (At least as possible crossovers). | ||
+ | * Using the 'route tracks' | ||
+ | * choose the layer (F.cu = front copper, B.cu = back copper) | ||
+ | * Use '' | ||
+ | * Keep space for fingers in mind when using connectors | ||
+ | * keep conductive things underneath the PCB in mind (for example: programming pins or the USB connector on a microcontroller). Make sure you don't get unwanted connections | ||
+ | * When layout is finalised perform a design rule check: '' | ||
+ | * Arrange the silkscreen elements to give info when the PCB is made. |