MKS Instruments, a global provider of fundamental technology solutions for semiconductor manufacturing, electronics and specialty industrial applications, announced the completion of its previously announced acquisition of Atotech Limited for approximately $4.4 billion in cash and MKS common stock. Atotech is a leading global supplier of process chemicals, equipment, software and services for printed circuit boards, semiconductor IC packaging and surface finishing. "The acquisition of Atotech will enable MKS to accelerate roadmaps for future generations of advanced electronic devices," said John TC Lee, president and CEO of MKS. "By combining leading capabilities in lasers, optics, motion and now process chemistry, MKS is well positioned to take a leadership role in the next milestone in miniaturization and complexity: through-hole optimization, enabling the next generation of advanced electronics. Atotech's leading position in functional and decorative surface enhancement also expands MKS' product offering in industrial applications and strengthens our market presence. I am very pleased to welcome the Atotech team to the MKS family."