we believe that a reliable PCB is not just the result of following standard procedures—it is the outcome of countless small improvements made across every production stage. While some of these efforts may not be visible in standard documentation, they play a critical role in delivering boards that perform consistently in the field.
One example is our drilling process, where we use specially coated entry boards and backup boards. These materials help reduce drill bit slipping, lower drill temperature, and minimize burr formation at the hole exit. The result is better hole quality, cleaner hole walls, and improved drilling accuracy.
But drilling is only one part of the story. Across our manufacturing flow, we continuously optimize processes to achieve the best possible quality and long-term reliability.
Lamination
We use specialized cushioning materials and release films to ensure uniform resin flow and precise layer-to-layer registration. This reduces the risk of voids, delamination, and thickness variation.
Plating
Our plating lines are optimized with advanced additives and pulse plating technology. This improves throwing power and ensures more uniform copper deposition inside high-aspect-ratio holes, reducing the risk of voids and improving electrical performance.
Outer Layer Imaging and Etching
For fine-line circuits, we dynamically adjust line width compensation and etching parameters. This helps control undercut, maintain line width accuracy, and achieve consistent results even on dense designs.
Solder Mask
We use high-resolution solder mask inks and carefully control pre-bake, exposure, and development conditions. This improves ink coverage, via plugging quality, and long-term protection against moisture and voltage stress.
Surface Finish
Through controlled micro-etching and specialized additives, we achieve uniform copper surface roughness and consistent coating thickness. This helps prevent issues such as gold surface discoloration, poor solderability, and tin whisker formation.
Routing and Profiling
Our routing process uses coated router bits and optimized tool paths to minimize burrs, edge damage, and mechanical stress. This is particularly important for thick boards, high-frequency materials, and rigid-flex designs.
Electrical Testing
Beyond standard open and short testing, we also perform internal high-voltage testing and four-wire low-resistance testing on critical products. These extra steps help identify potential micro-shorts and early-stage conductive anodic filament (CAF) risks before they become field failures.
Before plating, we use plasma or chemical cleaning to thoroughly remove resin smear from drilled holes. This improves hole wall adhesion and is especially important for high-frequency and high-speed materials where signal integrity is critical.
Every one of these improvements requires additional materials, time, and expertise. But we consider this investment essential. It means fewer field failures, longer product life, and greater confidence for our customers.
True quality is not always visible on the surface. It is built into every layer, every hole, and every process step.
we are committed to that level of quality—because our customers deserve nothing less.
