PCB的种类 单面板( Single- Sided boards) 2.双面板( Double- Sided boards) 3.多层板( Multi-Layer Boards) 信号层( Signal),电源层( Power),地线层( Ground)PCB的种类 1.单面板(Single-Sided Boards) 2. 双面板(Double-Sided Boards) 3. 多层板(Multi-Layer Boards) 信号层(Signal),电源层(Power),地线层(Ground)