Directors & Management


Mr James Dorrian

Non-Executive Chairman

James Dorrian is the non-executive Chairman of 4DS. He is a former partner at Crosspoint Venture Partners, a Silicon Valley based early stage venture capital firm. He has served as both CEO and Board Member of several Silicon Valley companies and has in depth M&A and IPO experience. Prior to this, Mr Dorrian was the Founder and CEO of Arbor Software and has held management roles with a number of multinational IT companies. He is a founding member of the OLAP Council, an industry consortium for On-Line Analytical Processing. Mr Dorrian holds a Bachelors of Arts in Economics and Communications from Indiana University.

Dr Guido Arnout, PhD

Chief Executive Officer and Managing Director

Guido Arnout is the Chief Executive Officer and Managing Director of 4DS. Prior to joining 4DS in 2013, Dr Arnout has helped guide multiple Silicon Valley companies through commercialisation or sale. He was the founding President and CEO of PowerEscape, which introduced the first tools for the development of low-power software executing on multi-core devices. He was also founding President and CEO of CoWare, which pioneered system-level design tools for hardware-software co-design and the time-based licensing business model. Dr Arnout co-founded the Open SystemC Initiative, an industry consortium to standardise a language for system level design, and as its President submitted the SystemC language to IEEE. He served as VP of Engineering and later senior VP of marketing of CrossCheck Technology. He co-founded and later became VP of Engineering of Silvar-Lisco, the first commercial EDA (electronic design automation) company. Dr Arnout holds a PhD in Electrical Engineering from the University of Leuven in Belgium.

Mr Howard Digby

Non-Executive Director

Howard Digby is a non-executive Director of 4DS. Mr Digby started his career at IBM and has spent over 25 years managing technology related businesses in the Asia Pacific region, of which 12 years were spent in Hong Kong. More recently, he was with The Economist Group as Regional Managing Director. Prior to this he held senior management roles at Adobe and Gartner where his clients included major semiconductor players including Samsung, Hynix and TSMC. Mr Digby is a non-executive Director of Estrella Resources (ASX:ESR) and is currently an advisor to a number of early stage technology companies. Mr Digby holds a Bachelor of Engineering (Mechanical) (Honours) from The University of Western Australia.

Mr David McAuliffe

Executive Director

David McAuliffe is an Executive Director of 4DS. He is an experienced board director and entrepreneur who has had over 20 years’ experience. During that time he was involved in numerous capital raisings and in-licensing of technologies. He is a founder of several companies in Australia, France and the United Kingdom, many of which have become public companies. Mr McAuliffe holds a Bachelor of Laws (Honours), a Bachelor of Pharmacy and is the President of the Dyslexia–Speld Foundation WA (Inc).


Mr Michael Van Buskirk

Chief Engineering Officer

Michael Van Buskirk is Chief Engineering Officer at 4DS. Mr Van Buskirk has held executive roles with a number of leading memory companies in Silicon Valley. He was the Chief Technology Officer at Adesto Technologies Corporation, where he initiated and directed its second and third generation CBRAMTM technology to make it suitable for broad market acceptance. He served as the Chief Operating Officer at Innovative Silicon, Inc., where he co-invented and developed its ultra-low voltage Z-RAMTM vertical floating body memory technology. Mr Van Buskirk was the Chief Technology Officer at Spansion, Inc., the flash memory joint venture between Advanced Micro Devices (AMD) and Fujitsu, where he integrated and oversaw the former Fujitsu and AMD flash memory engineering teams. Prior to the establishment of Spansion in 2003, he spent 17 years with AMD where he held senior positions including Vice-President of Engineering, Memory Group. Mr Van Buskirk holds a Bachelor of Science in Electrical Engineering from Oregon State University.

Dr Seshubabu Desu, PhD

Chief Technology Officer

Seshubabu Desu is Chief Technology Officer at 4DS. Dr Desu is a highly regarded global subject matter expert in thin films, semi processing and non-volatile memories. He was Dean of SUNY Binghamton’s Watson School of Engineering, Head of the Electrical and Computer Engineering Department at University of Massachusetts Amherst, and a professor at Virginia Tech Blacksburg. He holds 30 US patents, has written over 240 refereed technical articles and is a Highly Cited Researcher. Dr Desu has co-edited six books and supervised over 30 MS and PhD theses. He is a Fellow of both IEEE and the American Ceramic Society. His previous experience includes being a Group Leader at GE and a Senior Member of Technical Staff at Bell Laboratories. He holds a PhD in Materials Science and Engineering from the University of Illinois at Urbana-Champaign.