Half Hole Manufacturer & Assembly – One-stop service
The metal half hole (groove) is defined. After the hole is drilled, the second hole is drilled and the shaping process is completed. Finally, the metalized hole (groove) is half cut. In short, the metalized hole of the plate edge is cut in half.
Half hole process:
The semi-metalized hole process on the edge of the finished board is already a mature process in PCB processing, but in the process of how to control the quality of the semi-metalized hole on the edge of the board: such as the hole wall copper spurs, the residue has been in the process of machining A problem.
This type of board has a row of semi-metalized holes in the PCB, which is characterized by a relatively small individual, mostly used on the carrier board, as a daughter board of the motherboard, through the semi-metalized holes and the motherboard and components The feet are welded together.
Therefore, if there are copper thorns in these semi-metalized holes, the soldering of the plug-in manufacturers will result in inaccurate solder joints and weak soldering, which will cause a bridge short circuit between the two pins.
Metal half hole circuit board machining principle:
Whether it is drilling or milling, the SPINDLE (spindle) rotation direction is clockwise. When the tool is machined to point A, the metallization layer of the whole wall of point A is closely connected with the substrate layer to prevent metal. The extension of the layer during processing and the separation of the metalized layer from the pore walls will also ensure that the copper thorns are not lifted and left after processing;