Chemical Engineer, Director of Technology

David A. Mixon home phone: 908-***-****

*** ****** *** **** **** phone: 908-***-****

Port Murray, NJ 07865 e-mail: acs0s2@r.postjobfree.com

SUMMARY:

I have broad experience in chemical engineering process research, development, and design – in projects related to synthetic fuels, polymeric materials for semiconductor manufacture, chemical purification and separations, and processes for manufacture of high purity materials for solar energy and fiber optics. I am a manager for pilot scale development programs, scale-up, technology transfer, and design/installation/start-up of factory processes. I am also an experienced innovator, with 15 US patents and 40+ technical papers and presentations.

EXPERIENCE:

GCL Technology Research Center - Princeton, NJ 2012 - Present

Polysilicon Manufacturing R&D

Director of Technology

Directing US R&D team, for China-based operations, in process technology and design to produce high purity granular silicon for solar applications.

Developed a technology/IP package for AE Polysilicon, and sold it to GCL Polysilicon, as approved by the board of directors of AE Polysilicon.

Completed the design, installation, and start-up of a fluidized bed reactor and process for energy efficient, high volume production of granular silicon for solar energy applications.

Initiated studies of reactive distillation for silane manufacture.

AE Polysilicon Corporation - Fairless Hills, PA 2008 - 2012

Silicon Refining for Photovoltaic Solar Energy Industry

Technology Manager

Reported to company president - responsible for process engineering, mechanical/thermal design, selection of construction materials, and R&D/process development for a novel low-cost process for manufacture of PV-grade polysilicon. Managed a team of chemical and mechanical engineers and chemists for these activities. Responsible for IP development and technology-related investor relations.

Developed FBR technology for synthesis of high purity polysilicon from chlorosilane, using pilot plant studies and simulation techniques.

Determined the chemistry and kinetics of the FBR process using bench-scale studies.

Developed the P&ID for silicon production and participated in HAZOP analysis.

Established technology transfer for manufacturing and process start-up.

Directed a successful plant start-up and demonstration test. Eight patent applications.

David A. Mixon Page 2

OFS Fitel, Central Research Laboratories - Murray Hill, NJ 2001 - 2005

R&D related to materials and processes for optical fiber manufacture

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Member of Technical Staff

Developed new chemical processing methods to produce pure and doped silica-based glass structures for optical fiber manufacture.

R&D using low-temperature solgel chemistry and high-temperature furnace processing techniques for optical fiber manufacture.

Lucent Technologies/Bell laboratories - Norcross, GA 2000 - 2001

Manufacture of optical fiber.

Principal Chemical Engineer

Managed the technology transfer, design, and installation of a commercial process for the purification of solgel-derived tubes for manufacture of optical fiber overcladding.

Directed the design of high purity corrosive chemical delivery systems, high temperature furnaces, waste treatment systems, and control systems for a complex processing plant.

Managed the budget, installation, and startup of the process, and developed purification chemistry that safely met product specifications.

Bell Laboratories (AT&T, Lucent) - Murray Hill, NJ

R&D for telecommunications technologies.

Project Leader 1998 - 2001

Responsible for developing a manufacturable technology to purify solgel-derived tubes for optical fiber manufacture, via high temperature chemical processing.

Designed and built a pilot scale facility and led purification process research, within the framework of an team effort to produce overcladding tubes.

Member of Technical Staff 1983 - 1998

Conducted research and process development for materials and processes relevant to optical fiber and semiconductor manufacturing.

Developed and designed a process for ultrapurification of silicon tetrachloride - from bench scale research to commercial implementation for optical fiber manufacturing.

Invented and commercialized a process for the separation of germanium and silicon in aqueous solution, for recovery of germanium from optical fiber manufacturing effluents.

Developed, designed and constructed a pilot plant facility for the production of specialty polymers for use in microlithography for semiconductor processing. Also responsible for resist polymer manufacturing technology transfer and scale-up outside AT&T.

Designed and synthesized novel resist polymer materials for deep-UV, x-ray and electron beam microlithography, and optimized their performance in lithography processing.

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University of California, Berkeley - Forest Products Laboratory 1980 - 1983

R&D for materials and processes utilizing biomass.

Project Manager

Managed a pilot plant program to produce alcohols from renewable lignocellulosic resources.

Managed the design, construction, operation and optimization of a one-ton/day continuous- flow biomass hydrolysis pilot plant. Solved technical issues of high-pressure three-phase reactor design, solids and slurry transport, and process automation. Successfully carried out the project to completion of contract.

Developed material and energy balances for commercial plant design. Also worked on scale- up design, cost estimation and proposals for government and private funding.

Lawrence Berkeley Laboratory - Berkeley, CA 1978 - 1980

Physical sciences research and development.

Research Assistant

Worked as a graduate student researcher on government funded coal research.

Conducted an experimental study of the chemistry of oxidative coal desulfurization and designed a coal desulfurization process based on my findings.

Developed a spectroscopic method for the quantitative analysis of elemental sulfur in coal.

EDUCATION:

University of California, Berkeley 1981

MS, Chemical Engineering

Thesis: Coal Desulfurization

Thesis Adviser: Theodore Vermeulen

University of California, San Diego 1976

BA, Chemistry (Honors)

PATENTS and PUBLICATIONS (selected):

US 6,732,549 “Multi-pass sintering of a sol-gel body through a hot zone”

US 6,398,849 “Process and apparatus for treating gaseous products of sol-gel manufacturing”

US 4,935,094 “Negative resist with oxygen plasma resistance”

US 4,706,903 “Apparatus for the hydrolysis and disintegration of lignocellulose”

Mixon, D.A., M.P. Bohrer, and P.A. O’Hara, “Ultrapurification of SiCl4 by Photochlorination in a Bubble Column Reactor”, AIChE J. 36, 216-226, (1990).

Bohrer, M.P. and D.A. Mixon, “Copolymerization of t-Butoxycarbonyloxystyrene and Sulfur Dioxide”, Polym. Eng. Sci. 35, 989-999, (1995).

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