Yoko Yamaguchi is the Managing Director of Conductor Etch Memory Group at Lam Research Corporation. She started her career as a field process engineer at Lam Research Japan in 1996. In her first 4 years as a field process engineer, she learned etch process, product design and customer relationships, which lead her to transfer to Lam headquarters in Fremont, CA in 2000. She held multiple management positions in Conductor Etch Logic group, Process C&F group and Conductor Etch Memory Group. In February 2017, she was promoted to Managing director. She and her team work together to develop next generation etch process and product roadmap to enable future device for worldwide Memory device manufacturing customers.