2、非沉铜孔NPTH(Non Plating Through Hole),孔壁无铜,一般是定位孔及螺丝孔。 如果螺丝孔不需要镀铜,可以这样操作,输入PP(Place Pad), 鼠标那个位置就会出现一个焊盘,按键盘左上角的Tab键,在弹出的窗口那里选择孔径大小,X,Y尺寸也是孔径尺寸(没有焊环),Plated后面方框里的勾去掉,这样就形成了一个机械螺丝定位...
2、非沉铜孔NPTH(Non Plating Through Hole),孔壁无铜,一般是定位孔及螺丝孔。 如果螺丝孔不需要镀铜,可以这样操作,输入PP(Place Pad), 鼠标那个位置就会出现一个焊盘,按键盘左上角的Tab键,在弹出的窗口那里选择孔径大小,X,Y尺寸也是孔径尺寸(没有焊环),Plated后面方框里的勾去掉,这样就形成了一个机械螺丝定位...
什么叫做金属化孔?..金属化孔,Plated Through Hole,缩写为PTH,又称沉铜、孔化、镀通孔。就是指孔金属化这一种工艺,是指各层印制导线在孔中用化学镀和电镀方法使绝缘的孔壁上镀上一层导电金属使之互相可靠连通
the drilling requirements between this pair. The difference is that blind vias are plated, whereas back drilled vias or pads are an unplated drill event. Unplated holes are essentially a post-fabrication process, the drilling occurs after the etching, lamination, drilling, and through ...
Place » Drill Table or use the Drill Table icon () on the table drop-down of the Active Bar. After launching the command, drill hole data is retrieved from the source PCB file, the cursor will change to a cross-hair and the generated Drill Table is attached to the cursor. Move ...
•Platedand/ornon-platedholes. •Holesassociatedwithpads/viasthatarepartofacomponentand/orfree. •Allholetypes,oronlyround,squareorslottedholes. •Selectedand/orunselectedholes. •Onlythelayer-pairsofinterest. Oncethecriteriadefined,thepanellistsalluniqueholedefinitionsandsubsequentlythepadsand/orvias...
(1)单击“Wiring”工具栏中的放置焊盘按钮或 执行菜单命令“Place”“Pad”命令,启动放置焊盘命令。(2)按【Tab】键,打开如右图所示的“Pad”对话框。“Pad”对话框用于设置焊盘的属性,各选项的功能如下。“Hole Size”编辑框用于 5、设置焊盘中间的通孔直径。“Rotation”编辑框用于设置焊盘的旋转角度。“Location...
non plated through holes. If the pin is metallic in the 3D model or specified in the notes that the pins are metallic, most likely they would need a plated through hole unless otherwise specified. You may have an non plated through hole for a metallic pin, but it has to be specified ...
(normal, blind, buried and total), num. pads with plated holes, num. pads with unplated holes, total num. holes, smallest and largest hole sizes, number of different hole sizes, smallest annular ring, minimum track width, number of copper layers, board width, board height, and board area...
2 Pads and vias with a hole size between 15and 30@2 焊盘和过孔的孔大小在15-30之间 2.2uF Capacitor@2.2uF 电容 4 All testpoints@4 全部测试点 4 Port Serial Interface@4 端口串行接口 4.7K Resistor@4.7K 电阻 47K Resistor@47K 电阻