PCB entry sheet are also called PCB circuit boards, and are generally used for heat insulation boards for electronic products. PCB, also known as printed circuit board. The circuit board is generally composed of six parts: circuit and drawing, dielectric layer, hole, solder mask, silk screen, and surface treatment. The hole is a guiding through hole that can make the lines of more than two levels connect to each other, and the larger through hole It is used as a part plug-in. In addition, non-through holes are usually used for surface mount positioning and fixing screws during assembly. The aluminum gasket is suitable for drilling circuit boards.
The use of aluminum sheet for circuit board drilling has the following advantages:
1. The aluminum PCB entry sheet material effectively prevents the drill tip from indentation and scratches on the surface of the copper clad laminate during processing.
2. It can provide positioning and guiding function during the downward process of the drill bit to improve the positioning accuracy of drilling.
3. The aluminum sheet has an excellent thermal conductivity function, which can quickly dissipate the heat generated by friction when the drill bit is drilled at high speed, and effectively prevent the bit from overheating, thereby improving the life of the bit and better hole wall condition.
4. The aluminum PCB entry sheet material prevents burrs on the surface of the film copper foil board during high-speed drilling.
