Key Findings
Master Bond offers a comprehensive range of die attach epoxy adhesives characterized by exceptional bond strength, thermal cycling resistance, mechanical shock and vibration resistance, dimensional stability, and low ionic impurities. These adhesives are designed to meet the rigorous demands of microelectronic semiconductor packaging and chip-on-board assemblies. Available as both one-component heat-curable formulations and B-stage epoxy films, they facilitate rapid curing for high-volume production while ensuring robust bonding between substrates with differing Coefficients of Thermal Expansion (CTE).
Technical / Clinical Details
Master Bond’s die attach epoxy adhesives represent a critical technology for supporting the performance and reliability of modern electronic devices. Their key characteristics and product examples are as follows:
- High Bond Strength: Provides extremely high die shear strength, permanently securing the chip to the substrate. Examples include the electrically insulating film FL901AO and the electrically insulating epoxy EP17HTDA-1, both demonstrating exceptionally high die shear strength.
- Thermal Cycling Resistance: Withstands stresses arising from thermal expansion and contraction between materials with different CTEs, ensuring long-term stable operation of devices. This maintains reliability even in environments exposed to extreme temperature fluctuations.
- Mechanical Shock and Vibration Resistance: Protects the chip and bond joint from external impacts and vibrations, enhancing device robustness.
- Dimensional Stability: Maintains stable dimensions after curing, a crucial factor in precise packaging applications.
- Low Ionic Impurities: Features extremely low levels of ionic impurities, preventing corrosion and adverse electrical effects on sensitive semiconductor devices. This directly contributes to extending device lifespan and maintaining reliability.
- Rapid Curing: Capable of rapid heat curing to accommodate high-volume production processes. This improves production efficiency and contributes to reduced manufacturing costs.
These adhesives can be used with various assembly technologies, including wire bonding, flip-chip, and COB (Chip-on-Board).
Background & Context
The increasing demand for semiconductors in fields such as information and communication technology, automotive electronics, and consumer electronics is driving miniaturization, higher integration, and enhanced performance. Die attach materials, in particular, serve as the heart of semiconductor packaging, responsible for thermal transfer, electrical connection, and mechanical fixation between the chip and substrate. Their performance directly impacts the overall reliability and lifespan of the device. Stricter environmental regulations also impose requirements such as halogen-free and RoHS compliance on adhesives, leading suppliers like Master Bond to develop products that meet these criteria.
Strategic Significance & Outlook
Master Bond’s die attach epoxy adhesives will be indispensable materials in next-generation high-performance electronic devices, including 5G/6G communication, AI accelerators, IoT devices, and power modules for electric vehicles. The continuous evolution of these adhesives will contribute to the realization of semiconductor devices that enable higher power density, smaller form factors, and operation under more extreme environmental conditions. The company is expected to continue advancing the development of even higher-performance die attach solutions to meet market needs.
Source: https://www.masterbond.com/industries/die-attach-epoxy-adhesives
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