公开(公告)号：US20050276027A1

公开(公告)日：2005-12-15

申请号：US11142529

申请日：2005-06-01

申请人： Ling-Ling Shen ,  Yu-Xiang Wang ,  Hui Chen

发明人： Ling-Ling Shen ,  Yu-Xiang Wang ,  Hui Chen

IPC分类号： G12B17/02 ,  H05K1/02 ,  H05K9/00

CPC分类号： H05K9/0037 ,  H05K1/0218 ,  H05K2201/09354 ,  H05K2201/10371

摘要： A electronic device for shielding electromagnetic interference (EMI) including a metal shield, a printed circuit board (PCB) having a ground layer, and a number of ground pads arranged at edges of the PCB and in electrical conductivity with the ground layer. The ground pads lies close to edges of the metal shield. During solder reflowing process, solder is laid on the ground pads, and a height of the solder is adjusted to meet spaces or gaps of the shield. When the PCB is placed into the shield, the solder on the ground pads is in electrical conductivity with the metal shield to eliminate spaces or gaps thereof. So the EMI coupling which causes EMI signals interfering with sensitive components is avoided.

摘要翻译： 一种用于屏蔽包括金属屏蔽的电磁干扰（EMI）的电子设备，具有接地层的印刷电路板（PCB）和布置在PCB的边缘处并与接地层导电的多个接地焊盘。 接地垫靠近金属屏蔽层的边缘。 在焊锡回流过程中，将焊料铺设在接地焊盘上，并调整焊料的高度以满足屏蔽层的空间或间隙。 当PCB被放置在屏蔽层中时，接地焊盘上的焊料与金属屏蔽层导电，以消除其间隙或间隙。 因此避免了导致EMI信号干扰敏感元件的EMI耦合。

公开(公告)号：US07557302B2

公开(公告)日：2009-07-07

申请号：US11295949

申请日：2005-12-06

申请人： Yu-Xiang Wang

发明人： Yu-Xiang Wang

IPC分类号： H01K1/03

CPC分类号： H05K1/026 ,  H05K1/116 ,  H05K3/42 ,  H05K2201/09354 ,  H05K2201/09718

摘要： A printed circuit board for preventing electrostatic discharge damage includes several electronic components thereon. The printed circuit board defines a number of through holes therein. The printed circuit board includes a signal layer. The signal layer defines a first copper foil and second copper foil thereon. The first copper foils are disposed around the corresponding through holes and connect with the through holes. The second copper foils are disposed around the first copper foils and extend to two adjacent edges of the printed circuit board. The first copper foil and the second copper foil have a number of saw teeth. A gap between the first copper foil and the second foil is in the range from 0.1-0.125 mm.

摘要翻译： 用于防止静电放电损坏的印刷电路板包括其上的几个电子部件。 印刷电路板在其中限定了多个通孔。 印刷电路板包括信号层。 信号层在其上限定第一铜箔和第二铜箔。 第一铜箔围绕相应的通孔设置并与通孔连接。 第二铜箔设置在第一铜箔周围并延伸到印刷电路板的两个相邻边缘。 第一铜箔和第二铜箔具有多个锯齿。 第一铜箔和第二箔之间的间隙在0.1-0.125mm的范围内。

公开(公告)号：US20060139894A1

公开(公告)日：2006-06-29

申请号：US11295949

申请日：2005-12-06

申请人： Yu-Xiang Wang

发明人： Yu-Xiang Wang

IPC分类号： H05K7/06

CPC分类号： H05K1/026 ,  H05K1/116 ,  H05K3/42 ,  H05K2201/09354 ,  H05K2201/09718

摘要： A printed circuit board for preventing electrostatic discharge damage includes several electronic components thereon. The printed circuit board defines a number of through holes therein. The printed circuit board includes a signal layer. The signal layer defines a first copper foil and second copper foil thereon. The first copper foils are disposed around the corresponding through holes and connect with the through holes. The second copper foils are disposed around the first copper foils and extend to two adjacent edges of the printed circuit board. The first copper foil and the second copper foil have a number of saw teeth. A gap between the first copper foil and the second foil is in the range from 0.1-0.125 mm.

公开(公告)号：US20060124348A1

公开(公告)日：2006-06-15

申请号：US11295944

申请日：2005-12-06

申请人： Yu-Xiang Wang ,  Hui-Zhang Wang

发明人： Yu-Xiang Wang ,  Hui-Zhang Wang

IPC分类号： H05K1/03

CPC分类号： H05K1/0256 ,  H05K1/0215 ,  H05K1/0259 ,  H05K3/325 ,  H05K2201/09972 ,  H05K2201/10409

摘要： A printed circuit board for preventing electrostatic discharge damage includes several electronic components thereon. The printed circuit board defines several through holes therein, and includes a signal layer and a ground layer. The signal layer includes a central area and an edge area. The edge area encircles the central area and is separate from the central area. The electronic components are installed on the central area. An insulated area is formed between the central area and the edge area. In a typical application of the printed circuit board, screws are inserted into the through holes and engaged with a panel of a computer enclosure, thereby mounting the printed circuit board to the panel. Thus the edge area is absolutely grounded via the through holes. The electronic components are relatively grounded by connection to the ground layer.

摘要翻译： 用于防止静电放电损坏的印刷电路板包括其上的几个电子部件。 印刷电路板在其中限定几个通孔，并且包括信号层和接地层。 信号层包括中心区域和边缘区域。 边缘区域环绕中央区域，与中心区域分开。 电子元件安装在中央区域。 在中心区域和边缘区域之间形成绝缘区域。 在印刷电路板的典型应用中，将螺钉插入到通孔中并与计算机外壳的面板接合，从而将印刷电路板安装到面板上。 因此，边缘区域通过通孔绝对接地。 电子部件通过连接到接地层相对接地。