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 Expert  720281

Expert in Semiconductor Devices, Testing and Product Engineering, Marketing and Administration

Available for your Consulting and Expert Witness Needs

California (CA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has spent most of his career in the semiconductor device and process technology areas. His experience is wide, with exposure to germanium and silicon discrete to large scale silicon integrated devices in the sub-micron regime. An area that is also of major interest to him is the optimization of process steps and integration, in order to achieve optimum device performance.

semiconductor technology


semiconductor device manufacturing


test engineering

Expert has expertise in process modeling using supreme 4, and device modeling using Pisces 2b. His main emphasis has been on silicon devices for high voltage and high speed devices. Expert has modeled devices in the 0.55 micron length (CMOS). Expert has experience in total semiconductor processing including wafer cleaning, pre-treatments, oxidation, diffusion, implants, metallization, and passivation. He has worked with plasma and wet etching as well as photomasking.

semiconductor device


semiconductor processing equipment


semiconductor process modeling


semiconductor device modeling

Expert has been involved in developing process for isolation of devices. To do this, he has implemented different self-aligned technologies; under his guidance, the devices have low defect rates and low encroachment oxide isolation.

semiconductor material processing

Expert has expertise in multi-level interconnect technologies; in fact, he was one of the early proponents of multi-level interconnect technology with planarization. He has experience in ARC, planarization via fill, and step coverage areas of interconnect technology, as well as SOG processing and contact issues.

interconnection technology process development




multi-level metal interconnect

Expert is experienced in silicon, oxide, nitride, and metal etch technologies for VLSI He also has background in applied material etchers, tegal etchers, drytek etchers, and lam etchers.

plasma etching technology process development

During his past employment, Expert has been responsible for the development of bipolar and biCMOS technology. He is well experienced in the device and integration problems of combining bipolar and CMOS. Expert has been awarded a number of patents in these fields.

bipolar complementary metal-oxide semiconductor technology


bipolar integrated circuit


bipolar integrated circuit technology

This is one of Expert's strongest points. He has worked on improving FAB yield and final test yield of discrete devices to VLSI devices. He has excellent skills for identifying defects and causes of problems in this area, and solving them in the manufacturing environment.

semiconductor defect analysis


semiconductor quality improvement

Expert developed and patented an amorphous silicon diode for application with memory cells as load device. He also worked on deposition, doping, and passivation of amorphous silicon for vertical fuse technology.

amorphous semiconductor


amorphous silicon

Expert has had extensive experience in materials and characteristics of doped semiconductors. He has handled crystal growth and purification (float zone refining and doping) of germanium and silicon crystals. He has been involved in silicon material characterization for single crystal concentrator solar cell manufacturing.

doped semiconductor


semiconductor doping

Expert has extensive experience in different film depositions for peizoelectric crystal, capacitor, and semiconductor manufacturing. He has worked as a consultant to major equipment companies manufacturing deposition and etch equipment. He is familiar with microelectronic thin film applications.

electron-beam deposition


sputter deposition


vacuum deposition


vapor deposition


microelectronics thin-film application

Expert is knowledgeable of EEPROM and flash cells using electron tunneling phenomena in semiconductors. He has extensive background in the physics of tunneling.

electron tunneling

Expert has been involved with manufacturing of semiconductors and electronic component products for over 20 years. He has expertise in equipment selection, optimization of layout, yield improvement, and manufacturability assessment.

electronics manufacturing

Expert is knowledgeable of the technologies and devices currently used in medium and large scale semiconductor integration. He is familiar with the metal oxide semiconductor device form as the fundamental building block of both analog and digital circuits. He has been involved in characterization, modeling, manufacturing, and testing of these devices and circuits.

field-effect device




insulated field-effect transistor


metal-oxide semiconductor field-effect transistor


large-scale integration


very large-scale integration

Expert has experience with integrated circuits and manufacturing from small scale to VLSI level. He has a wide range of experience in process integration to achieve the final results.

large-scale integrated circuit


monolithic integrated circuit


integrated circuit

His experience in photovoltaics involves concentrator solar cell design, manufacturing, and testing. He worked primarily in concentration cell development for high-efficiency power generation.

photovoltaic cell


photovoltaic effect

Expert has done modeling work on TRAPATT and IMPAT diodes and microwave amplifiers. He also has some exposure to microwave ICs as a consultant.

microwave integrated circuit

Expert has experience in random access memory, including cell level, operation, manufacturing, and process. He has worked with bipolar, TTL and ECL memories, SRAM (MOS), DRAMS, and non-volatile memories.

random-access memory

He has been involved with memory cells using emitter coupled logic for high-speed bipolar and biMOS memory. He has patents in cell structures for ECL memories.

emitter-coupled logic

Expert has worked with bipolar junction transistors and Schottky and junction diodes. He has been involved in manufacturing, integration, and modeling of both standard bipolar and poly-emitter bipolar devices. He is also familiar with discrete high power and high voltage transistors and diodes.

junction transistor


semiconductor diode

Expert has worked on metal interconnection and dielectric planarization for interconnection. He has extensive knowledge of passivation methodologies. He has worked with barrier technologies for silicon interconnects.

semiconductor metallizing


semiconductor passivation

Expert studied and implemented the use of various dielectric materials used in semiconductor manufacture and packaging as part of the IFI team investigating optimum interconnection and packaging issues.

dielectric film

Expert a background understanding of cell structures for non-volatile memories, problems of manufacture, reliability, testing, and yield issues in EPROM, EEPROM, and flash technologies. He developed a vertical fuse technology for metal to metal interconnection. He has extensive experience in manufacturing device technology and reliability testing of non-volatile devices.

non-volatile memory


nonvolatile technology

As part of semiconductor technology and processing, Expert has been involved with optimization of doping processes using diffusion and implants. He has used rapid thermal processing.

ion implantation

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: San Jose, California;  San Francisco, California;  Sacramento, California;  Oakland, California;  Stockton, California;  Fremont, California;  Modesto, California;  Salinas, California;  Santa Rosa, California;  and Hayward, California.

Often requested
with this expert:

Semiconductor Processing and Equipment
Semiconductor Quality Control
Thin Film Science and Technology
Semiconductor IC Process and Operations Engineering,...

Year   Degree   Subject   Institution  
1982   MS   Electrical Engineering   University of Michigan, Ann Arbor  
1974   MBA   General & Marketing Management   Indian Institute of Management - Calcutta, India  
1968   BSE   Electronics and Communication Engineering   University of Kerala  

Work History:
Years   Employer   Department   Title   Responsibilities

2000 to





President & CEO


He is president of a Internet Router Chip start-up company.

1999 to 2000


Silicon Recognition, Inc





He was responsible for company expansion.

1995 to 1999


DynaChip Corp.



Dir. Product and Test Engineering


He was responsible for total product function with yield, packaging development, QC and testing. Customer interaction for problem solving.

1990 to 1995


Elan Mictrosystems, Inc .



V.P. of Technology and Projects


He was responsible for technology transfer to Japanese Fabs, and technology development for products (EEPROM, EPROM and Flash).

1987 to 1990


Tactical Fabs, Incorporated



Director, Process Integration and Project Management


He was responsible for technical project management and integration, process development & integration.

1986 to 1987


Advanced Micro Devices


Non-Volatile Memories


Senior Marketing Engineer


He did technical marketing for domestic, international and military areas.

1982 to 1986


Advanced Micro Devices


Non Volatile Memory


Sr. marketing Engineer


He was responsible for architecture, process and technology development & integration.

1977 to 1981


Kaduna Poly



Sr. lecturer


He taught courses in electronics & communication.

Career Accomplishments:

He is a member of IEEE.

Professional Appointments

He is a technical advisor to Isonics Ltd, a board member for Silicon Recognition, and a board member on Expert's Firm.

Publications and Patents Summary

He has over 28 patents in the areas of devices, architecture, packaging etc. He also has three publications.

Selected Publications and Publishers  
 - CICC Conference  
 - IEEE VLSI Multi-Level Interconnection Conference, Institute of Electrical and Electronics Engineers (IEEE)  
 - The Fourth Advanced Plasma Technology Seminar  

Consulting Services:
Selected Consulting Examples:
  • He developed the EEPROM for IMP using their technology - proved the manufacturability and reliability.
  • He was a consultant to EG & G - developed and implemented new high density technology for Infra red and optical sensors.
  • He consulted for ITT, GA improving the breakage seen during process. He suggested handling and equipment modifications for brittle GAs wafers.
  • He worked with Micro-Chip to eliminate the data loss due to process.
  • He consulted on process development for EPRI/ Stanford concentrator Solar cell. He developed the first 26% efficiency cell.
Recent Client Requests:
  • Expert in Plasma (RIE etching and plasma cleaning).
  • Expert in Power Electronics.
  • Expert in USB applications for consulting on development of an over current protection device for USB applications.
  • Expert in memory chip manufacturing for consulting on current and future technology challenges (materials and process) in packaging.
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 manufacturing expert for consulting on a semiconductor patent analysis - Stage I.
  • Expert in flash memory for consulting on litigation.
  • Semiconductor manufacturing expert for consulting on design of a plasma enhanced chemical vapour deposition of silicone nitride equipment for the manufacturing of solar cells.
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:
Country / Region   Summary
Germany   Worked with ITT semiconductors in Germany to improve their yield. Yield increased by 12% with changes implemented.
India   Consultant to BHEL on new fab implementation.
Japan   Consultant to NPC for CMOS technology & Non Volatile memory development, integration and qualification.
Sweden   Consultant to ABB Haffo for yield improvement effort.
Japan   Consulted with AKM on fab implementation and equipment selection.

Language Skills:
Foreign Language   Description
Malayalam   He is fluent in Malayalam.
Hindi   He knows some Hindi.

Additional Skills and Services:
Supplier and Vendor Location and Selection

Expert has experience locating vendors of etch systems, deposition systems, and manufacturing facilities for semiconductor processing.


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