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地线包晶振,晶振放在顶层的,这一圈底线放那层啊?
2015-12-29 12:37
- PCB技术
- 32
- 11647
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请给这个板子一些建议
2011-3-30 13:11
- PCB技术
- 13
- 2770
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Altium绘制的PCB转换成Protel格式时覆铜消失的问题
2013-11-27 12:51
- PCB技术
- 15
- 7561
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GERBER文怎样转换成Protel 格式文件.
2010-12-2 13:36
- PCB技术
- 3
- 2735
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对PCB设计的一些个人看法
2020-6-24 12:52
- PCB技术
- 64
- 13298
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请教:如何用pads 走线实现2.7nH的电感
2010-8-24 16:54
- PCB技术
- 3
- 3177
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这样走线行么
2010-8-12 12:58
- PCB技术
- 6
- 2539
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pcb layout 工程师好找工作吗?
2010-8-10 12:13
- PCB技术
- 3
- 3599
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有关四层板的问题,再次发帖请教!
2010-8-6 15:15
- PCB技术
- 10
- 2649
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求助:电路图标记识别
2010-10-20 21:49
- PCB技术
- 17
- 3565
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晶振下面一层为什么要净空
2010-7-29 21:49
- PCB技术
- 5
- 4278
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关于PCB的抗静电
2010-7-2 15:12
- PCB技术
- 5
- 2401
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手机接收短信导致复位
2010-7-2 13:51
- PCB技术
- 5
- 2409
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有人问我这个问题,我也答不上,请帮忙...
2010-6-30 23:06
- PCB技术
- 5
- 2010
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减少抖动率的电源和布线考虑.pdf
2011-2-11 16:40
- PCB技术
- 18
- 2829
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pcb同时布多根线
2010-6-5 11:37
- PCB技术
- 8
- 3533
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PADS助手:一个很好的软件献给用PADS(Power PCB)的人
2023-7-28 17:55
- PCB技术
- 47
- 23230
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怎样决定PCB的厚度?
2010-4-10 12:05
- PCB技术
- 3
- 2231
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电源线 地线问题 (新手)
2010-4-9 20:06
- PCB技术
- 5
- 2351
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将晶振的两个脚互换,会影响电路的正常工作吗?
2015-6-18 15:15
- PCB技术
- 25
- 8491
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2
3
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