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Labthink Instruments Co., Ltd.
Barrier Tests for Encapsulation Films in Electronics

Barrier Tests for Encapsulation Films in Electronics

Product catalog summary

Introduction
Encapsulation films are crucial in the electronics industry for protecting sensitive components such as semiconductors, OLED displays, and battery systems from environmental threats like moisture and oxygen. These films are typically made from materials such as epoxy, silicone, or parylene and are vital for ensuring the longevity and performance of devices, particularly in consumer electronics and industrial equipment.

Testing Procedures
Testing encapsulation films involves rigorous evaluations to confirm their protective capabilities. Key tests include:

Water Vapor Transmission Rate (WVTR) Testing: Measures moisture permeability, targeting values below 0.1 grams per square meter per day for high-performance applications.
Oxygen Transmission Rate (OTR) Testing: Evaluates oxygen penetration, with goals often set under 1 cubic centimeter per square meter per day to prevent oxidation.
Environmental Stress Assessments: Expose films to conditions like 85°C and 85% relative humidity to verify durability over time.
Dielectric Strength and Adhesion Tests: Ensure films maintain insulation and bonding under operational stress.

Standards and Compliance
These tests adhere to established standards to ensure reliability across the industry:

ASTM E96: Governs WVTR assessments.
ASTM D3985: Sets the benchmark for OTR measurements.
IEC 60068-2-78: Aligns environmental durability with real-world conditions.
IPC-TM-650: Outlines electronics-specific criteria for adhesion and electrical properties.
ISO 15106: Offers further calibration of transmission rates for precision applications.

Labthink C403H Test System
The Labthink C403H Oxygen/Water Vapor Transmission Rate Test System uses a Coulometric oxygen sensor and infrared water vapor sensor. It is designed according to ASTM D3985, ASTM F1249, ISO 15106-2, and other relevant standards to provide high precision and efficiency in testing the oxygen and water vapor transmission performance of films, sheets, and related materials across various fields.

Conclusion
The importance of encapsulation films in electronics manufacturing is significant. Failure in barrier performance can lead to device malfunctions, such as screen degradation in OLEDs or short-circuits in microchips. By adhering to testing protocols and standards, manufacturers ensure quality and reliability, meeting the demands of a sophisticated market. As technology advances, these films and their evaluation methods will continue to evolve, reinforcing their role in protecting modern electronics.

Catalog excerpts

Barrier Tests for Encapsulation Films in Electronics-1

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Barrier Tests for Encapsulation Films in Electronics In the electronics industry, encapsulation films serve as critical barriers, protecting sensitive components like semiconductors, OLED displays, and battery systems from environmental threats such as moisture and oxygen. These films, typically made from materials like epoxy, silicone, or parylene, are essential for ensuring device longevity and performance, particularly in consumer products like smartphones and industrial equipment. Testing these films involves a series of rigorous evaluations to confirm their protective capabilities. Water vapor transmission rate (WVTR) testing measures moisture permeability, often targeting values below 0.1 grams per square meter per day for highperformance applications. This process uses humidity differentials to assess how effectively a film prevents corrosion in circuits. Similarly, oxygen transmission rate (OTR) testing evaluates oxygen penetration, with goals often set under 1 cubic centimeter per square meter per day to safeguard against oxidation. Beyond transmission tests, environmental stress assessments — exposing films to conditions like 85 °C and 85% relative humidity—verify durability over time. Additional evaluations, such as dielectric strength and adhesion tests, ensure the films maintain insulation and bonding under operational stress. These tests adhere to established standards to guarantee reliability across the industry. ASTM E96 governs WVTR assessments, providing a consistent framework for moisture barrier performance, while ASTM D3985 sets the benchmark for OTR measurements. Environmental durability aligns with IEC 60068-2-78, simulating real-world conditions, and IPC-TM-650 outlines electronics-specific criteria for adhesion and electrical properties. For

Open the catalog to page 1

Barrier Tests for Encapsulation Films in Electronics-2

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 precision applications, ISO 15106 offers further calibration of transmission rates, ensuring films meet stringent requirements. Labthink C403H Oxygen /Water Vapor Transmission Rate Test System is based on the testing principle of Coulometric oxygen sensor and infrared water vapor sensor. It is designed and manufactured according to ASTM D3985、ASTM F1249，ISO 15106-2 and other relevant standards to provide high precision and high efficiency oxygen and water vapor transmission rate tests for high and medium gas barrier materials....

Open the catalog to page 2

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