• Industry: Tier-1 Automotive Electronics & Smartphone EMS (Electronic Manufacturing Services) Provider

• Location: Chang'an Industrial Zone, Dongguan, China

• Application: Reinforcement, encapsulation, and insulation of micro 0402/0201 SMD resistors, capacitors, and high-density IC pins on smartphone mainboards.

• The Challenges:

  1. Extreme Thermal Sensitivity: 0201 components are incredibly minute (0.6 * 0.3 mm). Traditional heat curing or low-end UV lamps emit excessive infrared heat, causing PCB warpage, component shifting, or the "tombstoning" defect.

  2. Highly Confined Space: The automated dispensing line had tight space constraints. The UV curing head needed to be ultralight and compact to integrate seamlessly with high-speed robotic arms.

  3. Rigorous Curing Uniformity: Nanoliter-level glue dots require highly uniform optical energy distribution. Any drop in intensity leads to incomplete bottom-layer curing and subsequent glue peeling.

To meet these stringent requirements, the engineering team at Shenzhen Super-curing Opto-Electronic CO., Ltd. conducted an on-site evaluation at the client's facility in Chang'an, Dongguan, and developed a customized High-Uniformity, Precision Micro UV LED Spot/Line Curing System.

To address the tight automation footprint, we engineered a specialized air-cooled structure that reduced the lamp head volume by 40% compared to standard industrial models. Backed by rigorous thermodynamic CFD simulations, it achieves maximum heat dissipation within a micro-chassis, ensuring lightweight stability during high-frequency robotic motion.

Utilizing our next-generation, high-purity 365nm wavelength UV LED chips coupled with narrow-band filtering optical lenses, we minimized invalid infrared heat radiation. The surface temperature rise in the irradiation zone was strictly limited to ≤ 5°C, completely eliminating thermal stress injuries on micro-joints.

• >90% Energy Uniformity: Custom-designed optics ensure that the UV output hitting the micro-dispensing dots is perfectly uniform, preventing localized under-curing.

• Closed-Loop Integration: The UV system communicates seamlessly via industrial PLC with the upstream precision dispensing machine and downstream AOI (Automated Optical Inspection) lines, supporting 0–100% step-less intensity adjustments and timers accurate to 0.01 seconds.

Since deploying Super-curing’s UV LED system at the client's automated assembly factory in Dongguan, the production line has achieved outstanding performance benchmarks:

• Defect Rate Dropped to 0%: Component displacement, tombstoning, and cold solder joints induced by curing issues were entirely eliminated.

• Throughput (UPH) Boost: The curing cycle per dispensing station was slashed from 3.5 seconds down to 0.8 seconds, boosting overall line efficiency by 30%.

• Zero Maintenance Overhead: Compared to traditional mercury vapor lamps, energy consumption was cut by over 85%, and the long-life LEDs eliminated annual bulb replacement costs.