Ceramic Electronic Package Encapsulation With Morphological Adhesion Promoter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional packaging solutions for electronic components face challenges such as limited thermal stability, mechanical reliability, and delamination issues due to high coefficients of thermal expansion and the use of organic materials that degrade at elevated temperatures.
Innovation Solution
The use of an inorganic ceramic-based encapsulant with a morphological adhesion promoter interposed between the electronic component and the encapsulant addresses these challenges by providing reliable electric insulation, mechanical robustness, and improved adhesion, while also compensating for thermal expansion mismatches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an inorganic ceramic-based encapsulant is used, then thermal stability and mechanical robustness are improved, but adhesion to electronic components deteriorates due to mismatched thermal expansion coefficients
Solution Approach 1:
An adhesion promoter layer is introduced as an intermediary between the inorganic ceramic encapsulant and the electronic component. This promoter contains functional groups that chemically bond to both the ceramic surface and the component surface, mediating the interface and preventing delamination caused by thermal expansion mismatch.
Solution Approach 2:
The encapsulation system uses a composite structure combining inorganic ceramic material with an adhesion promoter layer. The ceramic provides thermal stability and mechanical strength, while the promoter layer provides chemical bonding capability, creating a multi-material system that resolves the adhesion problem.
2Reliability
If an adhesion promoter is introduced between the electronic component and encapsulant, then mechanical stability and adhesion are improved, but device complexity increases
Solution Approach 1:
The adhesion promoter is applied as a thin film layer on the electronic component surface before encapsulation. This thin-film approach provides the necessary adhesion function without adding significant structural complexity or thickness to the overall device.
3Ease of manufacture
If conventional organic mold compound is used for encapsulation, then ease of manufacture is improved, but thermal stability deteriorates due to degradation at elevated temperatures
Solution Approach 1:
The encapsulation material is changed from organic polymer to inorganic ceramic, fundamentally changing the material parameter of thermal stability. The ceramic material maintains its structural integrity at high temperatures where organic materials would degrade, enabling the package to operate in high-temperature environments.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the mechanical and electrical reliability of the package, suppresses delamination, and provides thermal stability up to 300°C or higher, significantly improving the performance and longevity of electronic components.
Implementation Method 1
an adhesion promoter between at least part of the electronic component and the encapsulant
Implementation Method 2
may provide for a reliable electric insulation, may have proper thermal properties
Data Source
AI summary
A method of manufacturing a package includes forming an adhesion promoter on at least part of an electronic component. The adhesion promoter is a morphological adhesion promoter including a morphological structure having a plurality of openings. The method further includes at least partially encapsulating the electronic component with an inorganic encapsulant with the adhesion promoter in between. The adhesion promoter enhances adhesion between at least part of the electronic component and the encapsulant.