摩根士丹利：全球科技：晶圆堆叠助力下一代边缘人工智能

Investment Rating - The report maintains an "Overweight" rating for GigaDevice and AP Memory, while upgrading AP Memory's price target to NT$390.00 from NT$235.00 [6][12][13]. Core Insights - The wafer-on-wafer (WoW) stacking technology is expected to significantly enhance edge AI computing capabilities by improving memory bandwidth and reducing power consumption, thus facilitating the adoption of advanced AI tools in various devices [8][10][39]. - The total addressable market (TAM) for WoW technology is projected to grow from US$10 million in 2025 to US$6 billion by 2030, indicating a compound annual growth rate (CAGR) of 257% [10][40][84]. - Specialty memory players are anticipated to benefit the most from WoW technology due to their technological readiness and market positioning [12][13][40]. Summary by Sections Industry View - The report highlights a shift in investment ratings for specific companies, with GigaDevice's price target raised to Rmb169.00 and AP Memory upgraded to "Overweight" [6]. Key Takeaways - WoW technology is set to unlock the potential of edge AI devices by addressing limitations in size, shape, and layout through 3D memory stacking [8]. - The current mainstream solution, high-bandwidth memory (HBM), is not suitable for edge devices due to cost and form factor constraints, making WoW a more viable alternative [9][10]. Market Potential - The TAM for WoW is expected to reach US$622 million by 2027, with significant growth anticipated in the automotive and consumer electronics sectors [40][84]. - The report identifies key beneficiaries of WoW technology, including niche memory players like Winbond and GigaDevice, which are well-positioned to capitalize on the emerging market [12][13][40]. Technology and Adoption - WoW stacking technology is compared favorably against HBM, with potential improvements in memory bandwidth by 10-100 times and a significant reduction in power consumption [10][39]. - The report outlines the main hurdles for edge AI deployment, including power consumption, memory bandwidth, and cost, which WoW technology aims to overcome [38][46].