Challenges
Challenges Before Implementation
In the lens and VCM (Voice Coil Motor) assembly process for smartphones and digital cameras, adhesive application precision directly impacts product performance.
AF (Auto Focus) performance is particularly sensitive to even slight variations in adhesive volume, requiring highly precise application control.
Challenges in Conventional Processes
- AF performance affected by adhesive volume variations
- Unstable lens positioning accuracy
- Difficulty controlling micro-volume dispensing (nL to μL)
With advancing high-resolution technology, more precise and stable adhesive control was required.
Solution
Implementation Details
To address these challenges, we implemented the following systems in the adhesive bonding process.
High-Precision Dispenser & Temperature Control System
By combining a high-precision dispenser with a constant temperature control system, we maintained consistent adhesive viscosity and achieved stable dispensing.
Precision Nozzle Implementation
Adopted precision nozzles designed for micro-volume dispensing. Established a system capable of accurate adhesive application at targeted positions.
Low-Volume (nL to μL) Control
Achieved micro-volume dispensing control from nL (nanoliter) to μL (microliter) levels. Enabled precise control of adhesive volume.
Results
Implementation Results
After implementation, adhesive application stability improved significantly, leading to enhanced product quality.
Stabilized Adhesive Volume
Improved Lens Positioning Accuracy
Reduced AF Performance Variation
Improved Yield Rate
Through precise control of micro-volume dispensing, we successfully improved product quality and established a stable production system.
Voice
Customer Testimonial
“The adhesive volume has stabilized, and lens accuracy variations have been suppressed. We now have a reliable system for mass production.”
Applicability
Applicable Cases
- Cases requiring stable micro-volume adhesive application
- Processes needing to suppress lens positioning accuracy variations
- Products requiring stable AF performance
- Optical component manufacturing lines aiming for yield improvement
