Laser Micro Welding Services — Joining Two Materials Together
Our precision laser micro welding services securely join thin, delicate and dissimilar materials with exceptional accuracy. Perfect for medical devices, aerospace and precision electronics, we create clean, durable welds with minimal heat distortion and zero damage to sensitive parts.
Our Laser Micro Welding Technologies
We employ multiple laser welding techniques to achieve optimal results for your specific application requirements
Fiber Laser Welding
High-power fiber laser welding delivers fast, precise metal-to-metal joining with excellent penetration control and minimal distortion for production environments.
Micro Spot Welding
Precision spot welding for small components and thin materials. Ideal for medical devices, electronics, and applications requiring localized heat input.
Laser Micro Welding Applications We Support
We provide reliable, high-accuracy laser micro welding for delicate electronics, connectors, and automotive components with consistent, long-lasting results.
Micro Electronic Component Laser Welding
Laser welding for tiny electronic components and assemblies
Automotive Terminal Wire Harness Laser Welding
Stable and durable laser welding for automotive terminals and wiring
RF Coaxial Connector Laser Welding
High-accuracy welding for RF and coaxial connector components
Camera VCM Module Laser Welding
Laser welding for camera and VCM module assemblies
Technical Capabilities
Our advanced laser systems deliver industry-leading precision and versatility for micro welding applications
Glass-to-Metal Welding
Direct welding of transparent materials to metals without intermediate layers. Creates strong, hermetic bonds for sensors, medical devices, and optical systems.
- Sapphire, quartz, borosilicate to metals
- Shear strength: up to 128 MPa
- Hermetic sealing capability
- No adhesives or intermediate layers
Precision Metal Joining
Micro-scale welding of stainless steel, titanium, nitinol, and other metals for medical devices, electronics, and precision components.
- Material thickness: 0.01-6mm
- Weld strength: up to 80% of base material
- Minimal heat-affected zone
- Positional accuracy: ±5 µm
Hermetic Sealing
Create vacuum-tight seals for implantable medical devices, sensors, and electronic packages. Ensures long-term reliability and protection.
- Leak rates: < 10⁻⁹ mbar·L/s
- Biocompatible seals
- Implant-grade quality
- ISO 13485 compliant
Micro Component Assembly
Precision welding of micro-scale components including wires, tubes, marker bands, and complex 3D assemblies for medical and aerospace applications.
- Wire diameter: 25 µm and up
- Tube welding: hypotubes, catheters
- Marker band attachment
- 3D component assemblies
Technical Specifications
View our laser micro welding specifications: 30µm spot size, ±5µm accuracy & hermetic sealing. Precision metal & glass-to-metal welding solutions.
| Parameter | Specification | Notes |
|---|---|---|
| Minimum Spot Size | 30 µm | Fiber laser |
| Positional Accuracy | ±5 µm | Over 300mm travel |
| Material Thickness | 0.01 - 6 mm | Metal welding |
| Maximum Shear Strength | 128 MPa | Glass-to-metal |
| Weld Strength | Up to 80% | Of base material |
| Heat Affected Zone | < 100 µm | Fiber laser |
| Maximum Gap (Ra) | 0.125 mm | For butt joints |
| Substrate Size | Up to 300 × 300 mm | Larger on request |
| Wire Diameter | 25 µm and up | Micro wire welding |
| Leak Rate | < 10⁻⁹ mbar·L/s | Hermetic sealing |
Ready to Start Your Laser Micro Welding Project?
Get a free quote for your laser micro welding project. Our engineers are ready to help you achieve precision results.
Quote Process
For files larger than 20MB, please send to: sales@lasermicrofab.com with your contact information
Frequently Asked Questions
What is laser micro welding and how does it differ from conventional welding?
Laser micro welding uses focused laser beams to create precise welds at the microscale. Unlike conventional welding, it’s a non-contact process that applies no mechanical force to the workpiece, eliminates tool wear, and produces minimal heat-affected zones. It can weld materials as thin as 25 microns and achieve positional accuracy of ±5 microns, making it ideal for precision components in medical devices, electronics, and aerospace applications.
Can you weld dissimilar materials like glass to metal?
Yes, our femtosecond laser welding technology enables direct welding of transparent materials like glass and sapphire to metals without intermediate layers or adhesives. This is achieved through precise control of laser energy at the material interface, creating strong bonds with shear strengths up to 128 MPa. This capability is essential for hermetic sealing of sensors, medical implants, and optical systems.
What materials can be laser micro welded?
We can laser micro weld a wide range of materials including stainless steel (316L, 304), titanium, nitinol, cobalt chrome, aluminum, copper, precious metals (gold, platinum), Invar, Kovar, molybdenum, tungsten, and glass/sapphire. We also specialize in welding challenging material combinations and thin materials down to 25 microns in thickness.
How strong are laser micro welds?
Laser micro welds can achieve strengths up to 80% of the base material for metal-to-metal joints. For glass-to-metal welding using femtosecond lasers, we’ve achieved shear strengths up to 128 MPa. The actual strength depends on material combination, joint design, and process parameters. We perform destructive testing to validate weld strength for critical applications.
What is your laser micro welding accuracy?
Our systems deliver ±5 µm positional accuracy over 300 mm travel, with a minimum spot size of 30 µm. This ensures ultra-precise weld placement for the most demanding micro-manufacturing requirements.
What is the typical lead time for micro welding projects?
Standard lead time is 3-7 business days for prototype quantities. High-volume production lead times depend on part complexity and quantity. Rush services are available for urgent projects. Contact us with your specific requirements for an accurate timeline.