Printed drilled aluminum sheets for PCB circuit boards

Drilled aluminum sheets are also known as PCB circuit boards, and are generally used as 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 printed drilled aluminum sheets is suitable for drilling circuit boards.


 
Generally printed drilled aluminum sheets are used to dissipate heat.
 
Normally, aluminum is conductive.
In order to avoid spots on the heat sink, mica spacers are placed between the power device and the aluminum heat sink for insulation.
Of course, there are also those that directly use the PCB to make the heat sink on the printed circuit board.
 
Printed drilled aluminum sheets effect:
1. Heat dissipation, because the drill bit runs at high speed and friction generates heat.
2. Fix the drill bit to reduce the vibration during operation, and prevent the hole from being too large and the hole position deviation caused by the deviation of the drill bit.
3. Prevent the drill pin from scratching the surface of the PCB circuit board and reduce burrs.