We're writing up a story on the three biggest challenges facing the big semiconductor companies right now and why? In general, we're looking for the three or four largest challenges facing semiconductors right now and how they're impacting chip stocks in 2025. We need these queries answered for the story. 1. What's the current state of the semiconductor sector right now - and what are the big underlying issues facing the bigger industry companies like Nvida, Broadcom and others? 3. What about tariffs on semiconductor companies, both home and abroad? What risks/threats are investors seeing there right now and how are those issues impacting semi stocks? 4. What are the dynamics in play with AI companies figuring out how to run AI models with lower-cost chips (Think DeepSeek back in January)? Are lower-cost AI solutions a threat to the bigger players like Nvidia? 5. Are there any other risks, challenges and possible threats to the semiconductor sector that investors should know about in 2025? 6. What are your favorite semiconductor stocks right now and why?