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Austin, TX, United States of America

Sematech, Inc.

USPTO Granted Patents = 97

% Expired Patents = 41.2

Trademarks = 1

Forward Citations = 4,220

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125 inventors (with patents filed for the assignee):

Prahalad K Vasudev (12 out of 26 patents)

Bin Zhao (8 out of 72 patents)

Abbas Rastegar (6 out of 9 patents)

4. Franz T Geyling (6 out of 6 patents)

5. Valery M Dubin (5 out of 114 patents)

6. Chiu H Ting (5 out of 33 patents)

7. Ronald A Carpio (5 out of 5 patents)

8. Paul A Zimmerman (4 out of 16 patents)

9. Wei-Yip Loh (4 out of 4 patents)

10. Vibhu Jindal (4 out of 4 patents)

11. James Martin Price (4 out of 4 patents)

12. Richard L Anderson (4 out of 4 patents)

13. Kanghoon Jeon (3 out of 15 patents)

14. Joel Barnett (3 out of 4 patents)

15. Brian Coss (3 out of 3 patents)

Core Competencies:

EUV Lithography

Tunneling Transistor

Surface Cleaning

Semiconductor Materials

Chemical Mechanical Polishing

Dielectric Constant Control

Optical Metrology

Imprint Molding

Interconnect Structures

Electroless Deposition

Phase Shifting Mask

Wafer Polishing

97 patents: Sort by Forward Citations

1. 9097994 - Abrasive-free planarization for EUV mask substrates (2015-08-04),

2. 9029218 - Tunneling field-effect transistor with direct tunneling for enhanced tunneling current (2015-05-12),

3. 8888086 - Apparatus with surface protector to inhibit contamination (2014-11-18),

4. 8865376 - EUVL process structure fabrication methods (2014-10-21),

5. 8829567 - Metal alloy with an abrupt interface to III-V semiconductor (2014-09-09),

6. 8734907 - Coating of shield surfaces in deposition systems (2014-05-27),

7. 8734586 - Process for cleaning shield surfaces in deposition systems (2014-05-27),

8. 8673746 - Ammonium sulfide passivation of semiconductors (2014-03-18),

9. 8614145 - Through substrate via formation processing using sacrificial material (2013-12-24),

10. 8574480 - Partial die process for uniform etch loading of imprint wafers (2013-11-05),

11. 8539969 - Gigasonic brush for cleaning surfaces (2013-09-24),

12. 8493546 - Plasma as a band pass filter for photo lithography (2013-07-23),

13. 8436422 - Tunneling field-effect transistor with direct tunneling for enhanced tunneling current (2013-05-07),

14. 8432020 - Capacitors, systems, and methods (2013-04-30),

15. 8421165 - Apparatus, system, and method for tunneling MOSFETs using self-aligned heterostructure source and isolated drain (2013-04-16),

Company Overview

Sematech, Inc., based in Austin, TX, is a leading consortium focused on advancing semiconductor fabrication technologies. The organization specializes in critical areas such as EUV lithography, tunneling transistors, and surface cleaning techniques. Sematech plays a pivotal role in the development of semiconductor materials and processes, including chemical mechanical polishing and dielectric constant control. Its research initiatives also encompass optical metrology and imprint molding, driving innovation in the semiconductor industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

97 Patents

#29 in Austin, TX

#211 in Texas

#3,887 in US

#7,981 in the World

Austin, TX, United States of America

Sematech, Inc.

Forward Citations = 4,220

125 inventors:

Prahalad K Vasudev (12 out of 26 patents)

Bin Zhao (8 out of 72 patents)

Abbas Rastegar (6 out of 9 patents)

4. Franz T Geyling (6 out of 6 patents)

5. Valery M Dubin (5 out of 114 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sematech, Inc.. Retrieved from https://idiyas.com/company/sematech

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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