Hermeticity Testing
Hermeticity testing is an essential reliability evaluation method used to assess the sealing integrity of electronic components and assemblies. By verifying the effectiveness of package sealing structures, hermeticity testing evaluates a product’s ability to prevent the ingress of gases, moisture, and contaminants under environmental stress, ensuring long-term stability and reliability in real-world applications.
Hermeticity testing is widely applied in aerospace, medical electronics, automotive electronics, and other applications with stringent package reliability requirements, forming a critical part of high-reliability quality and validation systems.
Importance and Value of Hermeticity Testing
● Verification of Package Integrity
Evaluates the sealing performance of packages to prevent moisture, dust, and harmful gases from entering the internal structure and affecting device functionality.
● Reduction of Failure Risk
Poor sealing can lead to corrosion, electrical degradation, or mechanical failure. Hermeticity testing helps identify potential leakage risks at an early stage.
● Compliance with Industry and Regulatory Requirements
In industries such as medical, automotive, and aerospace, hermetic sealing is often required by standards and specifications. Hermeticity testing supports compliance and qualification requirements.
Hermeticity Testing Process
Test Requirement Review
● Understand product applications, package structures, and applicable standards
● Define test objectives, acceptance criteria, and test methods
Test Plan Development
● Develop tailored hermeticity test plans based on product characteristics and application needs
● Select appropriate test parameters to ensure engineering-relevant results
Test Preparation and Equipment Setup
● Configure testing equipment and parameters according to the test plan
● Verify system readiness to ensure stable and repeatable test conditions
Test Execution and Data Recording
● Perform hermeticity testing under controlled conditions
● Record test data for subsequent analysis and evaluation
Data Analysis and Evaluation
● Analyze test data to assess sealing performance
● Identify potential leakage risks and provide improvement recommendations when applicable
Reporting and Technical Support
● Provide comprehensive hermeticity test reports including methods, conditions, results, and conclusions
● Offer follow-up technical support as required
Hermeticity Testing Equipment and Capabilities
Helium Mass Spectrometer Leak Detector
Uses helium as a tracer gas due to its small molecular size and high permeability through micro-leak paths, enabling high-sensitivity detection of minute leaks in sealed packages.
The system provides quantitative leak rate measurements and is suitable for electronic components and assemblies with stringent hermeticity requirements, supporting package reliability evaluation and quality control.
Laboratory Service Value
In our laboratory, hermeticity testing is a key element of high-reliability package and component validation. Through standardized test procedures and advanced detection equipment, we deliver accurate and traceable evaluations of package sealing performance.
This service helps clients identify potential package-related risks during design validation and pre-production stages, ensuring product consistency and reliability in real application environments. Our hermeticity testing services provide engineering-relevant, clearly documented, and standards-aligned results, supporting long-term product reliability in demanding applications.