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Gumi, South Korea

Siltron, Inc.

USPTO Granted Patents = 52

% Expired Patents = 1.9

EPO Patents = 13

Trademarks = 1

Forward Citations = 124

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80 inventors (with patents filed for the assignee):

Hyon-Jong Cho (16 out of 16 patents)

Dong-Kun Lee (9 out of 12 patents)

Ho-Jun Lee (9 out of 15 patents)

4. Yong-Jin Kim (9 out of 11 patents)

5. Doo-Soo Kim (9 out of 11 patents)

6. Hong-Woo Lee (8 out of 10 patents)

7. Kun Kim (4 out of 4 patents)

8. Eunsang Ji (4 out of 4 patents)

9. Kyungmoo Lee (4 out of 4 patents)

10. Joon-Young Choi (4 out of 4 patents)

11. Ji-Hoon Kim (3 out of 77 patents)

12. Ill Soo Choi (3 out of 3 patents)

13. Hak-Do Yoo (3 out of 3 patents)

14. Do-Won Song (2 out of 4 patents)

15. Seung Ho Pyi (2 out of 85 patents)

Core Competencies:

Silicon Wafer

Single Crystal

Ingot Growth

Semiconductor Substrate

Nitride Semiconductor

Epitaxial Wafer

Defect Control

Gallium Nitride

Annealing Method

Polishing Apparatus

Box Cleaner

Coating Material

52 patents: Sort by Forward Citations

1. 9211631 - Grinding wheel truing tool and manufacturing method thereof, and truing apparatus, method for manufacturing grinding wheel and wafer edge grinding apparatus using the same (2015-12-15),

2. 8821219 - Wafer unloading system and wafer processing equipment including the same (2014-09-02),

3. 8753445 - Apparatus for growing high quality silicon single crystal ingot and growing method using the same (2014-06-17),

4. 8574362 - Method and apparatus for manufacturing an ultra low defect semiconductor single crystalline ingot (2013-11-05),

5. 8557619 - Light emitting diode display and method of manufacturing the same (2013-10-15),

6. 8414360 - Double side polishing apparatus and carrier therefor (2013-04-09),

7. 8398464 - Grinding wheel truing tool and manufacturing method thereof, and truing apparatus, method for manufacturing grinding wheel and wafer edge grinding apparatus using the same (2013-03-19),

8. 8349075 - 2-dimensional line-defects controlled silicon ingot, wafer and epitaxial wafer, and manufacturing process and apparatus therefor (2013-01-08),

9. 8298926 - Silicon wafer with controlled distribution of embryos that become oxygen precipitates by succeeding annealing and its manufacturing method (2012-10-30),

10. 8216372 - Apparatus for growing high quality silicon single crystal ingot and growing method using the same (2012-07-10),

11. 8198649 - Compound semiconductor substrate grown on metal layer, method for manufacturing the same, and compound semiconductor device using the same (2012-06-12),

12. 8158501 - Compound semiconductor substrate grown on metal layer, method of manufacturing the same, and compound semiconductor device using the same (2012-04-17),

13. 8158496 - Method for preparing compound semiconductor substrate (2012-04-17),

14. 8138003 - Method of manufacturing nitride semiconductor substrates having a base substrate with parallel trenches (2012-03-20),

15. 8124497 - Method of manufacturing nitride semiconductor device (2012-02-28),

Company Overview

Siltron, Inc. is a leading company based in Gumi, South Korea, specializing in the development and manufacturing of advanced silicon crystal growth technologies. The organization focuses on producing high-quality silicon wafers and single crystals, essential for semiconductor substrates. Siltron's expertise extends to ingot growth, nitride semiconductors, and epitaxial wafers, with a strong emphasis on defect control and the production of gallium nitride materials. Their innovations support various applications in the semiconductor industry, contributing to advancements in electronics and technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

52 Patents

#2 in Gumi

#311 in South Korea

#13,545 in the World

Gumi, South Korea

Siltron, Inc.

Forward Citations = 124

80 inventors:

Hyon-Jong Cho (16 out of 16 patents)

Dong-Kun Lee (9 out of 12 patents)

Ho-Jun Lee (9 out of 15 patents)

4. Yong-Jin Kim (9 out of 11 patents)

5. Doo-Soo Kim (9 out of 11 patents)

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

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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