
He has over 25 years of experience in the technology industry, and has held numerous executive and technical positions at BTU International, PRI Automation, Digital Equipment and Intel. Doug holds a BS degree in Chemical Engineering from University of Lowell, as well as an MS degree in Manufacturing Engineering and an MBA from Boston University.

Mary Puma has been Axcelis’ CEO since January 2002. She played an instrumental role in the company’s spin off from Eaton Corporation in 2000, when she was named President and Chief Operating Officer. Puma joined the semiconductor business in 1998, when it was Eaton’s Semiconductor Operation, first serving as the Vice President of its implant business and then as the Vice President for the total operation.
Puma joined Eaton in May 1996 as the General Manager of the company’s commercial controls division. Prior to joining Eaton, she spent 15 years in various marketing and general management positions at five different General Electric business units. Puma holds a BA in economics, Phi Beta Kappa, from Tufts University and an MS in Management from the MIT Sloan School of Management. She is a member of the boards at Nordson Corporation, North Shore Medical Center and Semiconductor Equipment and Materials International (SEMI).

Until assuming the role of CFO, Mr. Brewer held the position of Executive Vice President, Global Operations. Prior to joining Axcelis in 1999, Mr. Brewer was Director of Operations, Business Jets, at Raytheon Aircraft Company. Brewer also held various management positions in operations and strategic planning in Raytheon Company’s Electronic Systems and Missile Systems groups. Brewer holds a BS degree in Mechanical Engineering Technology from Southeastern Massachusetts University, and a Master’s degree in Business Administration from New Hampshire College. Mr. Brewer was named 2016 CFO of the Year in the public company category by the Boston Business Journal (BBJ). The award recognizes the top chief financial officers who deliver the most outstanding performance for their Massachusetts companies.

Bill Bintz has been Executive Vice President of Product Development since October 2016, prior to which he was Executive Vice President of Engineering and Marketing since April 2011 and Senior Vice President, Marketing since September 2007. Bintz joined Axcelis in early 2006 as Director of Marketing for curing and cleaning products and shortly thereafter became Vice President of Product Marketing where he expanded his responsibilities to include implant products as well.
Prior to joining Axcelis, from 2002 Bintz was Product Director for Medium Current and High Energy Ion Implant Systems at Varian Semiconductor Equipment Associates, Inc.
Before that, he was General Manager of the Materials Delivery Products Group at MKS Instruments, beginning in 1999, and General Manager of the Thermal Processing Systems Division at Eaton Corporation (now Axcelis) beginning in 1995. Bintz holds a BS in Mechanical Engineering and MS in Electrical Engineering from Northeastern University.

From 2003 to 2012, Dr. Low held a number of positions at Varian Semiconductor Equipment Associates, most recently as Director of Technology. Prior to that, Dr. Low held engineering positions in the thermal processing and ion implant divisions of Applied Materials, Inc. Dr. Low received his Ph.D. in Physical Chemistry from Oxford University. He also holds an Executive MBA from the Massachusetts Institute of Technology, and a BS degree from Southampton University. He has 44 granted US patents over multiple categories and has authored over 20 refereed papers.
