How Does NATIONSTAR Forge Outstanding LED Quality with "Non-Destructive Testing"?

The reliability of LED devices determines the performance and lifespan of end-use display and lighting products.

But how can we accurately detect hidden defects such as voids and cracks inside tiny, precisely structured LED devices?

NATIONSTAR’s answer: relying on advanced ultrasonic scanning technology, we achieve precise perspective through non-destructive testing, laying a solid reliability foundation for every single device.

Ultrasonic Scanning Test

The “Industrial CT” that Sees the Finest Details

As a state-of-the-art non-destructive testing method, ultrasonic scanning provides non-destructive visualization of internal device structures, offering critical data for precise control over production processes.

■ Working Principle:

High-frequency ultrasonic waves penetrate inside the device. By analyzing echo signals reflected from material interfaces and defects, high-precision 2D or 3D internal structural images are generated, enabling comprehensive evaluation of packaging processes.

■ Testing Targets:

Mainly assesses the quality of key processes including die-bonding interfaces, internal material voids, and adhesion (delamination) between packaging layers.

■ Diagnostic Capability:

Non-destructively detects micro-scale internal voids, cracks and delamination defects.

▲Ultrasonic scanning testing clearly reveals the internal structure of devices.In the device shown in the left image, the colored areas indicate defective regions.

Application of Ultrasonic Scanning

NATIONSTAR’s Pursuit of "Zero Defect Products"

NATIONSTAR deeply integrates ultrasonic scanning testing into the entire product lifecycle, building a dual quality control defense covering R&D and mass production.

▋ R&D Stage: Decision Basis for Process Optimization

In new product development and material introduction, ultrasonic scanning testing is systematically applied to accurately analyze internal packaging status under different materials and process parameters, providing scientific support for process iteration and solution optimization.

▋ Mass Production Stage: Monitoring Platform for Quality Assurance

NATIONSTAR includes ultrasonic scanning testing in routine sampling inspection, continuously monitoring process stability on production lines, preventing quality risks in batch production, and ensuring all delivered products meet high-reliability standards.

▲Ultrasonic Scanner Performing Scanning Inspection on LED Devices

All-Round Protection

NATIONSTAR’s Commitment to "Quality First"

Ultrasonic scanning testing is only one important part of NATIONSTAR’s product inspection and analysis. At present, the company has built a comprehensive quality inspection system covering material analysis, optoelectronic performance, thermal management and more.

■ Platform-Based Testing Capabilities

Equipped with high-end testing instruments such as scanning electron microscopes, X-ray testers and ultra-depth-of-field microscopes, we provide multi-dimensional, cross-field analytical capabilities to support product innovation and quality improvement.

■ Professional Service Team

Staffed by a professional inspection team composed of senior industry managers and technical experts with solid expertise and rich experience,we provide critical decision support for product fault location and process optimization.

■ Open Service Empowerment

Leveraging our nationally accredited laboratory qualification, we provide professional testing services to the industry,helping the industrial chain improve quality through accurate data.

▲NATIONSTAR Analysis & Testing Center Laboratory

As a leading enterprise in China's LED packaging industry, NATIONSTAR serves customers with "zero-defect" products, empowers the healthy development of the industry through open testing services, and continuously drives the LED industry toward high-end development with concrete actions.

Testing Services of NATIONSTAR Analysis & Testing Center

The NATIONSTAR Analysis & Testing Center possesses professional testing capabilities including optoelectronic performance, material analysis, and reliability testing, and is able to provide customers with accurate testing data as well as efficient and high-quality services.