China Wholesale Round Pcb Board Manufacturers - 4 Layer ENIG half hole PCB – Huihe
China Wholesale Round Pcb Board Manufacturers - 4 Layer ENIG half hole PCB – Huihe Detail:
Difficulties in machining metallized half-hole PCB
Metalized half-hole PCB after forming the hole wall copper black , burr residuadeviation has been a difficult problem in the molding process of PCB factoEspecially the whole row of half holes similar to stamp holes , the aperture isabout 0.6 mm , the hole wall spacing is 0 . 45 mm , the outer figure spacing is 2mm , because the spacing is very small , it is easy to cause short circuitbecause of copper skin.
The general metallized half-hole PCB foming methods are CNC millingmachine gongs , mechanical punching machine punching , V-CUT cutting andso on , these processing methods in removing the need for part of the hole tomake copper , can not will lead to the remaining part of the PTH hole section of.
Reasons for increased costs for half-hole PCBs
Half hole is a special technological process , in order to ensure that tcopper in the hole , we must do half of the process when the gong edgethe general half hole plate is very small , so the general cost of half hole plate is relatively high.
Application
Industrial control
Consumer electronics
Communication
Equipment display
Automatic Plating Line
PTH line
LDI
CCD Exposure Machine
Our factory
Product detail pictures:
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By Christopher Mabey from Germany - 2017.03.28 12:22
Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
By Emma from Singapore - 2017.01.28 18:53