2.5D封装，为何成为AI芯片的“宠儿”？

Core Viewpoint - The article emphasizes the critical role of packaging technology, particularly 2.5D packaging, in the development of AI chips, highlighting Intel's EMIB technology as a key solution to meet the growing demands in this sector [1][3][30]. Group 1: Importance of 2.5D Packaging - 2.5D packaging is not a new concept but has gained renewed significance in the AI chip domain, allowing for the integration of multiple functional units within a single package, thus providing a balance between complexity and performance [3][4]. - AI chips require high bandwidth and low latency for efficient inter-chip communication, which traditional packaging methods struggle to provide. 2.5D packaging enhances data transfer efficiency while maintaining a simpler manufacturing process [3][4]. Group 2: Advantages of EMIB Technology - EMIB technology offers several advantages: lower costs due to high wafer utilization, higher yield by reducing complex processing steps, and faster production cycles compared to traditional methods [4][5][8]. - EMIB's design allows for greater scalability and flexibility, making it suitable for integrating more HBM or complex workloads, thus enhancing performance potential for AI applications [8][9]. Group 3: Intel's Leadership in Packaging Technology - Intel has been a pioneer in packaging technology for over fifty years, continuously advancing from early wire-bond architectures to modern 2.5D and 3D technologies, establishing itself as a leader in the field [13][20]. - The company has completed over 250 2.5D design projects across various applications, demonstrating its extensive experience and capability in advanced packaging solutions [27]. Group 4: Future Developments - Intel is actively working on larger packaging sizes and exploring glass substrate technology, which is expected to become mainstream in the coming years, further enhancing packaging capabilities for AI accelerators [29][30].