半导体与半导体生产设备行业周报、月报：美国政府拟上调半导体进口关税，三星最快于下半年向博通出货HBM3E-20250818

Investment Rating - The report maintains a "Recommended" rating for the semiconductor industry, indicating that the industry index is expected to outperform the benchmark index by more than 10% [7]. Core Insights - The semiconductor industry is experiencing significant growth, particularly in AI-related applications, with various indices showing substantial weekly increases. The overseas AI chip index rose by 6.66%, while the domestic AI chip index surged by 13.3% [1][10]. - Major events impacting the industry include proposed increases in semiconductor import tariffs by the U.S. government and significant investments by companies like Apple and Samsung in AI and semiconductor technologies [3][29]. Market Indices Summary - Overseas AI Chip Index: Increased by 6.66% this week, with AMD up 2.7% and Broadcom up 0.4%, while TSMC and NVIDIA both saw a decline of 1.2% [1][10]. - Domestic AI Chip Index: Rose by 13.3%, with notable gains from Cambrian (33.3%) and Rockchip (13.7%) [1][10]. - NVIDIA Mapping Index: Increased by 18.3%, with Industrial Fulian up 22.6% and Invec up 37.6% [1][10]. - Server ODM Index: Grew by 4.5%, with Wiwynn up 14.8% [1][10]. - Storage Chip Index: Increased by 7.5%, with Dongxin up 31.7% [1][10]. - Power Semiconductor Index: Rose by 2.6%, with Sinda Semiconductor up 8.0% [1][10]. - Fruit Chain Index: A-share fruit chain index increased by 15.2%, while the Hong Kong fruit chain index rose by 7.2% [1][10]. Industry Data Summary - Samsung holds a dominant position in the South Korean smartphone market with an 82% market share, up 4 percentage points year-on-year, while Apple holds 18% [2][26]. - South Korea's ICT product exports reached $22.19 billion in July, a 14.5% increase year-on-year, with semiconductor and communication equipment exports growing significantly [2][26]. - Major North American cloud service providers are significantly expanding their data center investments, with planned expenditures ranging from hundreds of billions to over a trillion dollars [2][27]. Major Events Summary - The Trump administration is considering raising semiconductor import tariffs from 100% to 200%-300%, prompting Apple to commit an additional $100 billion to its "Made in America" initiative for tariff exemptions [3][29]. - Samsung is expected to begin shipping HBM3E to Broadcom in the second half of 2025, following delays in previous supply commitments [3][31]. - Apple is advancing its AI initiatives with plans for new devices, including a home robot and an upgraded Siri [3][33].