A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCB can be single sided (one copper layer), double sided (two copper layers) or multi-layer. Conductors on different layers are connected with plated-through holes called . Advanced PCB may contain components - capacitors, resistors or active devices - embedded in the substrate.
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熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
---|---|---|---|---|---|---|
未知 | Android Google Play | 1.0 App下載 | 免費 | 1970-01-01 | 2015-03-13 |