Titanium Dioxide Filled Polyimide Test Socket Housing
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Solution Overview
Problem
Current polyimide compositions and test sockets lack sufficient wear resistance, friction reduction, and mechanical properties under high pressure and velocity conditions, leading to unreliable test readings and increased rejection rates in semiconductor package testing due to degradation of test socket housings under mechanical stress.
Innovation Solution
Incorporating 40 wt% - 80 wt% polyimide polymer and 20 wt% - 60 wt% rutile titanium dioxide or acicular titanium dioxide into test socket housings to enhance mechanical performance and stability, thereby improving wear resistance and friction characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional polyimide compositions are used in test socket housings, then the housing provides basic structural support, but the wear resistance and friction characteristics are insufficient under high pressure and velocity conditions
Solution Approach 1:
The patent applies composite materials by combining polyimide polymer with titanium dioxide filler (rutile or acicular) in specific weight percentages (20-60 wt% TiO2). This composite structure enhances the wear resistance and friction characteristics of the test socket housing while maintaining structural integrity under high pressure and velocity conditions, thereby improving test reading reliability.
Solution Approach 2:
The patent utilizes parameter changes by optimizing the weight percentage of titanium dioxide filler (20-60 wt%) and polyimide polymer (40-80 wt%) to achieve the desired balance between wear resistance and mechanical properties. The specific particle morphology (rutile or acicular) and size distribution are also controlled to enhance friction reduction and wear resistance characteristics.
2Strength
If traditional polyimide compositions are used in test socket housings, then the housing provides basic structural support, but the friction reduction is insufficient leading to increased mechanical stress
Solution Approach 1:
The composite material system of polyimide and titanium dioxide provides improved friction reduction characteristics. The titanium dioxide particles (20-60 wt%) create a low-friction surface that reduces mechanical stress during semiconductor package testing operations, allowing for smoother movement and reduced wear.
3Productivity
If test socket housings are subjected to high mechanical stress during semiconductor testing, then testing can be performed, but the housing degrades leading to increased rejection rates
Solution Approach 1:
The enhanced composite material provides superior durability and resistance to mechanical degradation under high-stress testing conditions. This allows for sustained high-productivity testing operations without the housing degrading, thereby maintaining reliability and reducing rejection rates caused by housing failure.
Solution Approach 2:
The titanium dioxide-reinforced polyimide composition provides beforehand cushioning by preemptively enhancing the housing's mechanical properties to withstand anticipated high-stress testing conditions. This preventive reinforcement prevents degradation before it occurs, ensuring sustained reliability throughout the testing process.
Data Source
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AI summary
The disclosure generally relates to polyimide compositions and in particular, compositions having a filler. The polyimide compositions may be made of polyimide resins having titanium dioxide particle fillers. The use of titanium dioxide-filled polyimide resins increase the mechanical performance of articles made from the aforementioned. Articles include test sockets and in particular, a test socket housing. The test socket housing may be made of the aforementioned polyimide resins having titanium dioxide particle fillers. The use of titanium dioxide-filled polyimide resins increase the mechanical performance characteristics of the test socket housing resulting in accurate and reliable test socket readings.