Core Insights - The article emphasizes the emergence of 3D IC technology as a crucial development direction in the integrated circuit industry, addressing the limitations of traditional 2D IC technology due to the approaching physical limits of Moore's Law [2][11]. Group 1: Design Complexity and Solutions - 3D IC design complexity surpasses that of traditional planar ICs, requiring integration of chips with different functions and processes, which complicates cross-system connection planning and coordination [4][5]. - Siemens EDA's Innovator3D IC™ solution, launched in 2024, aids IC designers in efficiently creating, simulating, and managing heterogeneous integrated 2.5D/3D IC designs, allowing for effective data management and problem avoidance [5][6]. - The Innovator3D IC suite, released in June 2025, supports designs with over 5 million pins, featuring multi-threading and multi-core processing capabilities, enhancing performance for complex designs [5][7]. Group 2: Verification and Reliability - The verification of 3D IC systems is critical, particularly in ensuring correct connections between stacked chips, which involves design rule checks (DRC) and layout versus schematic (LVS) validations [8][9]. - Siemens EDA has expanded its Calibre® platform to address verification challenges, with tools like Calibre 3DStack automating checks for die alignment and LVS, ensuring correct inter-chip connections [9][10]. - The Calibre 3DPERC and mPower tools validate reliability issues post-die stacking, addressing concerns such as electrostatic discharge (ESD) and electromagnetic interference (EMI) [9][10]. Group 3: Thermal and Stress Analysis - Effective heat dissipation in 3D stacked structures is a significant challenge, as accumulated heat can adversely affect chip performance [10][11]. - Siemens EDA's Calibre 3DThermal software analyzes thermal effects in 3D ICs, enabling designers to model and visualize heat distribution, thus optimizing layout and packaging designs [10][11]. - The Calibre 3DStress tool addresses thermal-mechanical stress and warpage, allowing for transistor-level analysis to evaluate the impact of packaging interactions on design functionality [11]. Group 4: Future Prospects - 3D IC technology is positioned as a vital future direction for the integrated circuit industry, with significant application potential across various fields [11]. - Siemens EDA aims to lead technological innovation in 3D IC design, providing comprehensive solutions for design collaboration, verification, thermal management, and stress analysis, thereby facilitating breakthroughs in the industry [11].