Visitors taking photofs at a TSMC booth at the 2024 World Semiconductor Congress in Nanjing, China.CFOTO/Future Publishing/Getty ImagesInvestors are awaiting TSMC earnings for signs of what's to come for the chip sector. AMSL sparked a panic on Tuesday as it slashed sales guidance for 2025. TSMC, a key customer of ASML, already reported revenue that exceeded expectations.