![横幅广告banner-高速先生手机版](http://edadoc.com/upload/images/slides/20240701/17198037679506949.jpg)
![fm](http://www.edadoc.com/upload/images/article/20230907/16940762691745809.png)
辐射超标,没想到是机壳地的设计问题!
2022-03-28
![fm](http://www.edadoc.com/upload/images/article/20230907/16940733702072279.png)
PCB标记的埋雷设计,短路了却找不到一丝踪迹
2022-03-21
![fm](http://www.edadoc.com/upload/images/article/20230907/16940722035395473.png)
不加回流过孔这事,以前都不敢想!
2022-03-21
![fm](http://www.edadoc.com/upload/images/article/20230907/16940749652018879.png)
来自PCBA工厂的忠告,这种PCB封装设计请尽量少做
2022-03-07
![fm](http://www.edadoc.com/upload/images/article/20230907/16940760202281303.png)
有没搞错,光模块外壳影响信号质量!
2022-02-28
![fm](http://www.edadoc.com/upload/images/article/20230907/16940766975552359.png)
会拆主机不算啥,高速先生还会测!
2022-02-14
![fm](http://www.edadoc.com/upload/images/article/20230907/16940780634478635.png)
PCBA上电容开裂短路,怎么又是设计的错?
2022-01-24
![fm](http://www.edadoc.com/upload/images/article/20230907/16940771218683642.png)
这种PCB节约成本的设计,你做过吗?
2022-01-24
![188](http://www.edadoc.com/upload/images/article/20230918/16950054581091072.png)
PCB上邮票孔的添加方式,你真的做对了吗……
2021-12-16
![fm](http://www.edadoc.com/upload/images/article/20230918/16950070973729976.png)
示波器只能测波形?格局小啦!
2021-12-06
![184](http://www.edadoc.com/upload/images/article/20230918/16950166659724783.png)
深度揭秘信号孔旁边到底需要几个地过孔
2021-11-15
![183](http://www.edadoc.com/upload/images/article/20230918/16950234558875271.png)
如果有一种设计不增加成本又能改善信号质量
2021-11-08
![182](http://www.edadoc.com/upload/images/article/20230918/16950264331718802.png)
DDR4信号参考电源层,阻抗会有影响吗?
2021-11-01
![fm](http://www.edadoc.com/upload/images/article/20230918/16950277235731976.png)
很难相信,这对高速信号换了那么多次过孔!!!
2021-10-18
![fm](http://www.edadoc.com/upload/images/article/20230918/16950293802747283.png)
同一个过孔会有不同的阻抗???
2021-10-11
![fm](http://www.edadoc.com/upload/images/article/20230918/16950297887198174.png)
直到PCBA装配不了,才知道封装设计丝印标示的重要
2021-09-13
![fm](http://www.edadoc.com/upload/images/article/20230918/16950310574706144.png)
59G示波器想不想要59GHz示波器到了,想要测试的看过来
2021-09-06
![176](http://www.edadoc.com/upload/images/article/20230919/16950865174897751.png)
明明钻孔标示很清晰,为何PCB上漏了钻
2021-09-03