24 lines
405 B
Markdown
24 lines
405 B
Markdown
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---
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title: PCB
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updated: 2022-01-11 08:36:07Z
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created: 2022-01-08 13:18:07Z
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---
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==1mm=39.37mils==
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# JLC 丝印工艺
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最小宽度6mil（0.2mm），最小高度1mm
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50欧姆线宽，常规板厚10mil（0.254mm），20mil（0.508mm）
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# FR4
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Er=4.4，板厚0.508mm，W=0.93mm；板厚1mm，W=1.87mm；板厚0.254mm，W=0.45mm；
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# RO4350
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# RO4003
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Er=3.55，板厚0.508mm，W=1.1mm；
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7136 S1055 S1155
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