If you have the opportunity to pick up a printed circuit board and observe it alittle, you willfind that there are many large and small holes on the circuit board. Take it up and look at the lamp on the ceiling, and you will find many densely packed small holes. The holes are not placed in a good place, each hole is designed with a purpose. Commonly drilled holes in our printed circuit board(PCB) ...

1. Mechanically controlled depth drilling In the traditional manufacturing process of smt patch multilayer boards, a drilling machine is used to set the Z-axis depth of drilling, but there are some problems: a. Only one can be drilled at a time, and the yield is very low. b. The table of the drilling machine must be level, and the drilling depth of each spindle must be the same. Otherwise, it is d...

A Thick Copper PCB, also known as a Heavy Copper PCB, is a type of printed circuit board that features copper traces and planes with significantly higher copper thickness compared to standard PCBs. While standard PCBs typically have copper thickness measured in ounces (e.g., 1 oz, 2 oz), Thick Copper PCBs can have copper thicknesses ranging from 3 oz to as high as 20 oz or more. The increased copp...