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 Expert  108231

Expert in Semiconductor Technology


Available for your Consulting and Expert Witness Needs

Washington (WA)
USA
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Since 1960, Expert has made extensive contributions to materials and semiconductor technology. During his early years with Westinghouse, he conducted pioneering work in the areas of silicon epitaxy, selective epitaxy, and polysilicon. He has made significant contributions in the areas of silicon power devices, solar cells, and integrated circuits. Working worldwide, he has solved silicon supplier and device manufacturer problems through diagnostic measurements and technical advice. He has worked for yield enhancement through studies of defect engineering, profiling, contamination, and dielectric integrity. He is familiar with the electronic device materials of bulk silicon, epitaxial silicon, SOI, and Ge-Si. Expert has originated numerous invention disclosures, holds seven patents, and has over 75 published writings on semiconductor technology.
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complementary metal-oxide semiconductor integrated circuit

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selective epitaxy

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semiconductor technology

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semiconductor wafer

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silicon wafer

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silicon-on-sapphire material

During the mid-80s, Expert's group developed submicron CMOS technology as well as radiation hard SOI technology. He has an in-depth understanding of starting material qualification, gate oxides, implant dose control, multi-level metallization and inter-layer dielectrics, contamination control, and process characterization and monitoring. He has studied the profile of ultra shallow CMOS junctions using spreading resistance.
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complementary metal-oxide semiconductor device

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silicon-on-insulator

His group also made contributions in the development of SOS, SIMOX, and X-ray lithography for ULSI technology.
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ultralarge-scale integrated circuit

Expert is knowledgeable of processing, characterization, new product development and marketing of power rectifiers, thyristors, transistors, and high voltage and high power devices. He has taken laboratory research to the manufacturing floor on topics such as the control of carrier lifetime/switching properties in power devices and the application of the power Darlington transistor for electric vehicles. As an advisor to the United Nations Industrial Development Organization (UNIDO), he was able to develop power devices and the microprocessor chips necessary for the electric vehicle project in India. This required transfer of knowledge and technology between experts from the US, Europe, and India.
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power semiconductor device

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semiconductor device

From the late '70s through the '80s, Expert's team at Westinghouse developed high efficiency solar cell technology using silicon dendritic web. He has examined the thermal stability of impurities in silicon solar cells and the effects of low-energy hydrogen ion implantation on dendritic web silicon cells. He implemented a systematic transfer of the solar cell technology from R & D to pilot production. His team assisted in developing a business plan for marketing the photovoltaic technology, both in the USA and abroad.
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photovoltaic cell

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photovoltaics

Expert has experience with the measurement of doping profiles, carrier lifetime (metallic contamination and switching speed control) oxide integrity, crystal defects, and crystal reliability. He has conducted high resolution profiling of semiconductors and non-destructive lifetime measurement by photoconductive decay. He has measured carrier diffusion effects in III-V semiconductor structures and characterized SIMOX SOI films by the point contact current voltage (PCIV) technique. Expert has also conducted characterization of direct bonded silicon wafers by the spreading resistance and point contact MOST techniques. In addition, he has done ion-channeling analysis of the crystalline quality of silicon-on-sapphire. Recently, he has focused on characterizing ultra-shallow junctions (x(j) < 500 angstroms) and has organized two international workshops on this topic.

Expert was able to successfully launch a new line of fully-automated diagnostic tools for capacitance-voltage, current-voltage, and measurements of doping profiles, this was accomplished through effective strategic planning, technical marketing, and product development plans.

Additionally, he developed a two-day seminar on semiconductor characterization, yield, and reliability, suitable for semiconductor fab engineers.

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electronics measurement

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epitaxial silicon

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semiconductor material characterization

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semiconductor material property

Expert has worked extensively with many silicon suppliers and device manufacturers worldwide. He is familiar with device parameter optimization, process definition, process integration, and equipment selection. His experience places him in a strong position to deal with material and device issues critical to manufacturing.
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semiconductor material

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semiconductor device manufacturing

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integrated-circuit manufacturing

Expert has performed pioneering work in epitaxial growth of silicon and polysilicon and heteroepitaxial growth of silicon, boron, and gallium arsenide. His doctoral thesis was on doping of epitaxial silicon. He has studied gallium doped epitaxial silicon, gas phase doping of epitaxial silicon, and epitaxial growth of silicon-on-sapphire.
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semiconductor growth

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epitaxy

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chemical vapor deposition


Show Secondary and Basic Areas of Expertise
Localities:
Expert may consult nationally and internationally, and is also local to the following cities: Seattle, Washington;  Bellevue, Washington;  Everett, Washington;  Federal Way, Washington;  Kent, Washington;  Bellingham, Washington;  and Renton, Washington.

Often requested
with this expert:

Semiconductor Processing and Equipment
Thin Film Solar Cell Testing; Semiconductor Optoelectronic...
Photovoltaics
Materials and Processes of Semiconductor Microelectronic...

Education:
Year   Degree   Subject   Institution  
1970   PhD   Materials Science   University of Pittsburgh  
1959   MASc   Chemical Engineering   University of British Colombia, Canada  
1956   BSc   Chemistry   University of Gauhati, India  

Work History:
Years   Employer   Title  

1986 to

 

(Undisclosed)

 

President

 

1989 to 1993

 

Solid State Measurements

 

Vice President of Technology

 

1967 to 1989

 

Westinghouse R&D Center

 

Manager of Device Development

 

Career Accomplishments:
Associations/Societies

He is an active participant in IEEE, the Electrochemical Society, the Metallurgical Society, and the Materials Research Society.


Publications:

Government Experience:
Description
Over the years he has maintained close contacts with many government agencies and industries worldwide. As an advisor to the United Nations Industrial Development Organization (UNIDO), he has made significant contributions to the semiconductor efforts in India. These close contacts allow him to stay current and on the leading edge of technology throughout the world.

Consulting Services:
Recent Client Requests:
  • Expert for consulting on Cleanroom to give a 1-hour web-based seminar on best practices for gloves in the cleanroom environment and deliver results of an independent study conducted by Penton Media about gloves in the manufacturing environment.
  • Polysilicon expert for consulting on polysilicon process.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Semiconductor expert for consulting on manufacturing facility.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Summary
Expert has travelled throughout the world, including the former Soviet Union, giving technical seminars. Over the years he has maintained close contacts with many government agencies and industries worldwide. As an advisor to the United Nations Industrial Development Organization (UNIDO), he has made significant contributions to the semiconductor efforts in India. These close contacts allow him to stay current and on the leading edge of technology throughout the world.

Additional Skills and Services:
Training/Seminars

Expert has traveled throughout the world, including the former Soviet Union, giving technical seminars.


 

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