First Implementation of Monolithic Integrated Cim with 1Mb Ultra-High-Density 8-Layer 3D VRRAM, Achieving High Computing Density ($204.8 \text{GOPs} / \text{mm}^{2}$) and FoM ($2. 1 3 × 1 0^{6} \text{GOPS}^{2} / W / \text{mm}^{2}$) for Efficient Scientific Computing - Ma, Cailian; Sun, Wenxuan; Nie, Long; Li, Yao; Wu, Yue; Fan, Zichen; Tang, Weiye; Zhang, Kaiping; Liu, Yu; Zhao, Shengjie; Zhang, Peiwen; Zhang, Shuaidi; et al. (2025 Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits), VLSI Technology and Circuits (VLSI Technology and Circuits), 2025 Symposium on, 2025)