In semiconductor manufacturing, micro-hole drilling on glass substrates is critical yet highly challenging. Traditional mechanical drilling is slow, prone to micro-cracks and edge chipping, and often results in poor hole quality. These issues reduce yield and hinder device miniaturization and performance improvement. As chip integration advances, hole diameters are shrinking to the micron scale, driving stricter requirements for precision and consistency. Achieving efficient, damage-free drilling in glass has therefore become a key challenge for the industry.

Laser drilling is emerging as a breakthrough solution in semiconductor manufacturing thanks to its unique advantages. This non-contact process uses a tightly focused, high-energy laser beam to vaporize material, enabling holes only a few microns in diameter—well beyond the limits of mechanical drilling. Just as importantly, the process induces no mechanical stress in the substrate, effectively eliminating micro-cracks and edge chipping. Ultrafast lasers, operating on picosecond and femtosecond timescales, further minimize the heat-affected zone (HAZ), preserving material integrity around the drilled area.

Laser systems also offer exceptional flexibility and throughput. Unlike mechanical tooling that requires frequent bit changes, lasers can accommodate different hole sizes, shapes, and densities through simple program adjustments, significantly reducing setup time. Modern systems can operate multiple laser heads in parallel or integrate with high-speed scanning optics, achieving thousands of holes per minute and boosting productivity by several times. Environmentally, laser drilling requires no coolants or lubricants, reducing chemical waste and associated treatment costs. While the initial equipment investment is relatively high, the benefits of higher yield, lower energy consumption, and reduced consumables result in overall cost savings.

In advanced semiconductor packaging, Through-Glass Via (TGV) technology is becoming a key enabler of device miniaturization and 3D integration. HGLaser has developed dedicated TGV drilling systems designed specifically for this application. These systems create vertical interconnect channels in glass substrates, forming high-density via structures that directly serve the chip packaging process. Compared with HGLaser’s automated dual-head glass drilling platforms and fifth-generation glass laser drilling equipment for general brittle materials, the TGV systems are purpose-built for semiconductor applications, delivering unmatched specialization and industry alignment.

With unmatched precision, efficiency, and flexibility, laser glass drilling technology is becoming the mainstream choice in semiconductor microfabrication. It not only overcomes the limitations of traditional methods but also enables further miniaturization and integration, accelerating semiconductor innovation. As laser technology continues to advance and costs further optimize, this process will penetrate more manufacturing stages, driving greater value creation across the industry. Choosing laser drilling technology means choosing higher quality, stronger competitiveness, and a smarter manufacturing future.

HGTECH is the pioneer and leader of laser industrial application in China, and the authoritative provider of global laser processing solutions. We comprehensively layout the construction of laser intelligent equipment, measurement and automation production lines, and smart factories to provide an overall solution for intelligent manufacturing.

We deeply grasp the development trend of manufacturing industry, constantly enrich products and solutions, adhere to exploring the integration of automation, informatization, intelligence and manufacturing industry, and provide various industries with laser cutting systems, laser welding systems, laser marking series, laser texturing complete equipment, laser heat treatment systems, laser drilling machines, lasers and various supporting devices The overall plan for the construction of special laser processing equipment and plasma cutting equipment, as well as automatic production lines and smart factories.