Halogen-Free PCB Manufacturer

We condition premium halogen-free laminates inside climate-controlled facilities to stabilize the substrate and minimize moisture-related fabrication risks before processing.

• Imaging: Utilizing advanced Laser Direct Imaging, we bypass traditional physical photo masks to expose your complex circuit patterns directly onto the photoresist, guaranteeing exceptional alignment accuracy for ultra-fine traces built on halogen-free resin systems.
• Developing: We wash away the unexposed photoresist to precisely define the circuit pathways, ensuring sharp copper edge geometry across the inner layers.
• Etching: Chemical etching removes the unwanted copper, leaving behind the exact layout required for your high-density medical interconnects.
• Inspection: Automated optical inspection (AOI) scans the inner layers to detect any defects, shorts, or opens before moving forward with multi-layer bonding.
• Lamination: We bond the inner layers and halogen-free prepreg together under tightly controlled temperature and pressure profiles to form a solid, void-free multi-layer structure.

Once the multilayer structure is laminated, we use precision mechanical drilling and laser drilling according to the required via structure. The drilled panels undergo rigorous chemical cleaning and electroless copper deposition, followed by electrolytic copper plating to ensure robust barrel integrity and reliable interlayer connections throughout the circuit.

• Precision Mechanical and Laser Drilling: We use advanced mechanical and UV laser drills to form clean, accurate microvias and through-holes through specialized eco-friendly substrates.
• Electroless and Electrolytic Copper Plating: Drilled panels undergo rigorous chemical cleaning, electroless copper deposition, and electrolytic plating to guarantee robust barrel integrity and reliable interlayer connections.

We form the robust outer-layer circuits through precise imaging, copper plating, and etching processes on our halogen-free laminates. After completing the circuit pattern, we apply your specified surface finish, such as ENIG, ENEPIG, or immersion silver, to protect exposed copper. We then perform comprehensive electrical and optical verification to check for opens, shorts, and trace anomalies.

• Flying Probe Testing: We utilize high-speed flying probe machines to execute thorough netlist testing, verifying exact electrical continuity and isolating any hidden open or short circuits before shipment.
• Automated Optical Inspection: High-resolution AOI scanners compare the physically etched copper directly against your original digital layout, catching microscopic trace anomalies or etching defects that electrical testing alone might miss.

Before shipment, our quality team performs a meticulous final inspection according to strict ISO 13485 standards and your exact medical specifications. We verify board appearance, physical dimensions, surface finish quality, and material compliance. Comprehensive production logs, testing data, and halogen-free material certificates are retained to ensure absolute traceability. The finished circuit boards are then securely packaged and shipped according to your delivery schedule.