芯片散热，三星有新招

Core Viewpoint - The introduction of Heat Pass Block (HPB) technology by Samsung in the Exynos 2600 represents a significant advancement in mobile SoC thermal management, addressing the challenges posed by high-performance computing and the need for efficient heat dissipation [1][4]. Group 1: HPB Technology Overview - HPB is a metal thermal conduction structure integrated within the chip packaging, designed to shorten the distance for heat transfer from the chip core to the external cooling module [2]. - The primary material used for HPB is copper, which offers excellent thermal conductivity and performance among metals [2]. Group 2: Advantages and Challenges of HPB - The implementation of HPB establishes a more direct thermal pathway between the die and the external cooling system, effectively reducing thermal resistance, which is crucial for high-power chips [4]. - Despite its advantages, HPB introduces new constraints in engineering and product design, including increased volume and height, complexity in packaging design, and higher costs [4]. - The increased Z-axis height of HPB may limit space for other components like batteries or camera modules in slim phone designs [4]. - The complexity of HPB, being a multi-material structure, requires careful management of thermal expansion differences, impacting manufacturing yield and reliability [4]. - The cost implications of HPB packaging necessitate its initial application in flagship or Pro-level SoCs, making it less accessible for mid-range markets [4]. Group 3: Industry Comparison - In contrast, TSMC continues to utilize existing packaging and thermal design strategies without incorporating internal heat conduction structures like HPB, focusing instead on wafer-level multi-chip module (WMCM) packaging to mitigate localized heat concentration [5]. - This indicates a shift in thermal management strategies as mobile SoCs transition into high-power and high-density computing, evolving from single-path solutions to more integrated packaging and system design considerations [5].