When manufacturing printed circuit boards (PCBS), the accuracy of drilling directly affects the quality of the circuit boards. Do you know? A special stone - ZHHIMG® granite - is becoming the "secret weapon" for PCB drilling!
How difficult is PCB drilling? Imagine drilling holes thinner than a human hair on a circuit board smaller than a fingernail. A slight deviation could cause the circuit to fail. When drilling ordinary materials, errors are prone to occur due to temperature changes and equipment vibrations. And ZHHIMG® granite is inherently endowed with an "anti-interference" quality! Its coefficient of thermal expansion is extremely low. Even when high temperatures are generated during laser drilling, it hardly deforms and can control the drilling deviation at the nanometer level. Meanwhile, it has extremely high hardness, and its internal structure can absorb over 90% of the equipment vibration like a sponge, avoiding burrs or cracks at the edge of the borehole.
To make the granite more suitable for PCB drilling, the ZHHIMG® team also carried out technical upgrades. Through special annealing treatment, the internal stress of the stone is eliminated, just like giving it a "relaxation massage", allowing it to remain stable even during long-term use. In addition, they also embedded a microchannel water cooling system in the granite, which can quickly remove the heat generated by the drilling and further reduce thermal deformation.
Nowadays, ZHHIMG® granite has made great achievements in fields such as 5G communication and automotive electronics. After using it, a certain factory found that the original 5% borehole scrap rate had directly dropped to less than 1%, saving over a million yuan in costs in a year! If you are also worried about the precision of PCB drilling, why not give this "stone magic tool" a try? It might bring you unexpected surprises!
Post time: Jun-13-2025