APPLE INSIDER
Apple’s main chip foundry TSMC has hiked its financial outlook for 2021 on the strength of new Macs, with the first Apple Silicon expected to ship in the MacBook Air in late 2020.

TSMC is expecting the climb to start in the third quarter of 2020. This is likely from the “A14” chip expected in the “iPhone 12.” However, a new report claims that the company will ramp up production and revenue because of MacBook Air and 13-inch MacBook Pro in the second half of 2021.
Source: APPLE INSIDER