We performed strongly in 2017, with revenues increasing by 23% to a record high and total new bookings growing by 24% to €774 million.
Revenue growth was driven by customers investing in new ALD applications for the most advanced 3D-NAND device manufacturing, while we also saw strong traction in new product areas in expitaxy and PECVD. The contribution to our equipment sales of both product lines increased during the year.
Expanding our customer base
In recent years, we have further broadened our customer base and strengthened relationships with key customers. Revenue from our top-ten customers increased to 83% in 2017, from 79% in 2016.
Working with our customers, we continued to expand the number of ALD process steps and applications for the most advanced technology nodes. ALD is now firmly established as a key enabling technology. In logic, foundry, and memory, the leading customers have already ramped several technology generations based on our ALD equipment.