service/EDA-dat/kicad-dat/2023-12-11-00-04-17.png
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service/EDA-dat/kicad-dat/kicad-workflow.md
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+
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+# kicad work flow
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+
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+- prerequisite shortcuts - https://docs.kicad.org/7.0/en/kicad/kicad.html
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+
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+- add symbols and assign footprint
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+ - enter "E" for properties, and assign the footprint
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+
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+
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+## PCB
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+
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+commom layers
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+
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+| layers | explain | CN |
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+| -------------- | ------- | ------ |
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+| edge.cuts | | 边框层 |
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+| F/B Silkscreen | | 丝印层 |
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+| F/B Mask | | 阻焊层 |
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+| F/B Paste | | 锡膏层 |
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+| F/B Cu | | 铜箔层 |
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+
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+* F for front and B for back
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+
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+### PCB init setup
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+
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+![](2023-12-11-00-04-17.png)
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+
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+- 网络线宽
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+- 钻孔尺寸
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+- 网格 1.0 mm
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+- 缩放
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+
service/PCB/PCB-standards-dat/PCB-standards-dat.md
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+# PCB-standards-dat
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+
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+- 8 mil = 0.2 mm
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+- 10 mil = 0.25 mm (common used)
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+- 12 mil = 0.3048 mm
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+- 14 mil = 0.3556 mm
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+
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+| category | Standards | 0.2 mm | 10 mil | large |
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+| --------- | ---------------------- | -------------- | ------ | ----- |
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+| clearance | Wire -> Wire, Pad, Via | 0.2 mm | | |
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+| clearance | Wire -> edge | 0.2 mm | | |
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+| Size | Signal Width | 0.2 mm | | |
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+| Size | Minimum Drill | 0.25 mm | | |
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+| Miscs. | roundness | 0.15 mm @ 100% | | |
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+| Miscs. | Mask | 0.1mm @ 100% | | |
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