https://www.legitreviews.com/tsmc-unveils-6-nanometer-process_211450
 
TSMC today announced its 6-nanometer (N6) process, which provides a significant enhancement of its industry-leading N7 technology and offers customers a highly competitive performance-to-cost advantage as well as fast time-to-market with direct migration from N7-based designs. By leveraging the new capabilities in extreme ultraviolet (EUV) lithography gained from the N7+ technology currently in risk production, TSMC's N6 process delivers 18% higher logic density over the N7 process. Scheduled for risk production in the first quarter of 2020, TSMC's N6 technology provides customers with additional cost-effective benefits while extending the industry-leading power and performance from the 7nm family for a broad array of applications, ranging from high-to-mid end mobile, consumer applications, AI, networking, 5G infrastructure, GPU, and high-performance computing.
 
I thought TSMC was ready for 5nm production so I guess I was wrong. If so then Samsung will be slightly ahead as they start working with 5nm.