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芯片可靠性挑战,何解?
半导体芯闻· 2025-06-10 09:52
Core Viewpoint - The semiconductor industry is redefining reliability standards as chips are increasingly deployed in harsh environments, necessitating advanced testing and validation methods to ensure performance under extreme conditions [2][17]. Group 1: Testing and Validation - The shift towards more complex applications requires manufacturers to validate performance under normal operating conditions rather than just extreme scenarios, starting from the wafer stage [2][3]. - System-Level Testing (SLT) is becoming essential for identifying early failure modes that traditional aging tests may miss, particularly under real-world operational stresses [3][4]. - Integrating SLT into testing processes allows manufacturers to make informed decisions early in the product lifecycle, enhancing reliability and performance [5][6]. Group 2: Reliability Prediction - Manufacturers are increasingly using data from the entire lifecycle of chips to predict and prevent failures, moving beyond traditional certification methods [7][9]. - The combination of optical inspection, embedded telemetry, and machine learning is crucial for predicting failure mechanisms and improving reliability [9][11]. - Real-time monitoring and feedback loops are essential for optimizing testing coverage and expected lifespan, particularly in high-reliability markets [12][14]. Group 3: Standards and Certification - Certification standards are evolving to reflect the complexities of modern semiconductor applications, with a trend towards convergence across different sectors [13][14]. - The integration of accelerated life testing and field telemetry feedback is enhancing the ability to validate performance under actual workload conditions [14][16]. - Continuous detection and adaptive testing are becoming increasingly important due to the high density and diversity of materials used in semiconductor packaging [16][17]. Group 4: Challenges in Harsh Environments - Chips used in harsh environments face significant thermal and mechanical stresses, making even minor measurement errors potentially catastrophic [15][16]. - Corrosion detection is gaining attention, especially for aerospace and industrial applications, where long-term exposure to moisture can lead to degradation [15][16]. - The need for ongoing monitoring and adaptive testing is critical to manage reliability in unpredictable operational conditions [16][17].