"During the time John and I have worked together, I have come to respect him a great deal, both as a person and as a professional. His leadership and strong character have guided the organization through challenging times," Zafiropoulo said. "I am confident that John has a bright future ahead of him and, on behalf of our entire management team, I sincerely wish him well as he pursues the next chapter of his career."

Ultratech Inc. is a small-cap semiconductor equipment company based in Silicon Valley.