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San Jose, CA, United States of America

Wafermasters Incorporated

USPTO Granted Patents = 48

% Expired Patents = 64.6

Forward Citations = 465

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6 inventors (with patents filed for the assignee):

Woo Sik Yoo (46 out of 52 patents)

Kitaek Kang (8 out of 9 patents)

Taro Yamazaki (3 out of 3 patents)

4. Yoo Woo Sik (2 out of 2 patents)

5. Takashi Fukada (1 out of 1 patent)

6. Hiromitsu Kuribayashi (1 out of 4 patents)

Core Competencies:

Laser Beam Processing

Optical Emission Spectroscopy

Raman Spectroscopy

Gas-Assisted Thermal Processing

Wafer Processing Apparatus

Plasma Processing

Thermal Evaporation System

Selective Heating Techniques

Wafer Alignment Systems

Integrated Annealing Methods

Multi-Spectral Light Sources

Defect-Free Processing

48 patents: Sort by Forward Citations

1. 7718554 - Focused laser beam processing (2010-05-18),

2. 7599048 - Optical emission spectroscopy process monitoring and material characterization (2009-10-06),

3. 7564547 - Spectroscopy system (2009-07-21),

4. 7507667 - Selective heating using flash anneal (2009-03-24),

5. 7440094 - Optical sample characterization system (2008-10-21),

6. 7397561 - Spectroscopy system (2008-07-08),

7. 7362426 - Raman and photoluminescence spectroscopy (2008-04-22),

8. 7358200 - Gas-assisted rapid thermal processing (2008-04-15),

9. 7344979 - High pressure treatment for improved grain growth and void reduction (2008-03-18),

10. 7276457 - Selective heating using flash anneal (2007-10-02),

11. 7262918 - Light beam conditioner (2007-08-28),

12. 7198677 - Low temperature wafer backside cleaning (2007-04-03),

13. 7194199 - Stacked annealing system (2007-03-20),

14. 7141513 - Integrated ashing and implant annealing method using ozone (2006-11-28),

15. 7063583 - Multi-spectral uniform light source (2006-06-20),

Wafermasters Incorporated is a leading semiconductor manufacturing company specializing in the production of high-quality silicon wafers. With over 20 years of industry experience, we deliver innovative solutions for various applications, including integrated circuits, solar cells, and sensors. Our state-of-the-art facilities and advanced technologies ensure precise fabrication and customization according to specific requirements. As a trusted partner, we consistently meet the strictest quality standards and provide reliable support to our global client base.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

48 Patents

#191 in San Jose, CA

#1,710 in California

#7,270 in US

#14,509 in the World

San Jose, CA, United States of America

Wafermasters Incorporated

Forward Citations = 465

6 inventors:

Woo Sik Yoo (46 out of 52 patents)

Kitaek Kang (8 out of 9 patents)

Taro Yamazaki (3 out of 3 patents)

4. Yoo Woo Sik (2 out of 2 patents)

5. Takashi Fukada (1 out of 1 patent)

Please report any incorrect information to [email protected]

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