Sei-Hyung Ryu

Person

Farmington Hills, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Vertical power devices fabricated using implanted methods
- Patent number 12,289,906
- Issue date Apr 29, 2025
- Wolfspeed, Inc.
- Daniel Jenner Lichtenwalner
Information Patent Grant
Power semiconductor devices including a trenched gate and methods o...
- Patent number 12,278,284
- Issue date Apr 15, 2025
- Wolfspeed, Inc.
- Daniel Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Trench bottom shielding methods and approaches for trenched semicon...
- Patent number 12,279,448
- Issue date Apr 15, 2025
- Wolfspeed, Inc.
- Woongsun Kim
Information Patent Grant
Protection structures for semiconductor devices with sensor arrange...
- Patent number 12,237,412
- Issue date Feb 25, 2025
- Wolfspeed, Inc.
- Edward Robert Van Brunt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
FinFET power semiconductor devices
- Patent number 12,176,423
- Issue date Dec 24, 2024
- Wolfspeed, Inc.
- Naeem Islam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sidewall dopant shielding methods and approaches for trenched semic...
- Patent number 12,094,926
- Issue date Sep 17, 2024
- Wolfspeed, Inc.
- Daniel J. Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vertical semiconductor device with improved ruggedness
- Patent number 12,087,854
- Issue date Sep 10, 2024
- Wolfspeed, Inc.
- Daniel Jenner Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power semiconductor devices including angled gate trenches
- Patent number 12,080,790
- Issue date Sep 3, 2024
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wide bandgap semiconductor device with sensor element
- Patent number 12,074,079
- Issue date Aug 27, 2024
- Wolfspeed, Inc.
- Joohyung Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Edge termination for power semiconductor devices and related fabric...
- Patent number 12,009,389
- Issue date Jun 11, 2024
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power transistor with soft recovery body diode
- Patent number 11,990,543
- Issue date May 21, 2024
- Wolfspeed, Inc.
- Kijeong Han
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vertical power devices fabricated using implanted methods
- Patent number 11,894,455
- Issue date Feb 6, 2024
- Wolfspeed, Inc.
- Daniel Jenner Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power silicon carbide based semiconductor devices with improved sho...
- Patent number 11,843,061
- Issue date Dec 12, 2023
- Wolfspeed, Inc.
- Kijeong Han
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate trench power semiconductor devices having improved deep shield...
- Patent number 11,837,657
- Issue date Dec 5, 2023
- Wolfspeed, Inc.
- Naeem Islam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate trench power semiconductor devices having improved deep shield...
- Patent number 11,769,828
- Issue date Sep 26, 2023
- Wolfspeed, Inc.
- Thomas E. Harrington
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power transistor with soft recovery body diode
- Patent number 11,769,827
- Issue date Sep 26, 2023
- Wolfspeed, Inc.
- Kijeong Han
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate trench power semiconductor devices having improved deep shield...
- Patent number 11,764,295
- Issue date Sep 19, 2023
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor devices having gate resistors with low variation in r...
- Patent number 11,664,436
- Issue date May 30, 2023
- Wolfspeed, Inc.
- Sei-Hyung Ryu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor power devices having multiple gate trenches and metho...
- Patent number 11,664,434
- Issue date May 30, 2023
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power semiconductor devices including a trenched gate and methods o...
- Patent number 11,640,990
- Issue date May 2, 2023
- Wolfspeed, Inc.
- Daniel Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate trench power semiconductor devices having improved deep shield...
- Patent number 11,610,991
- Issue date Mar 21, 2023
- Wolfspeed, Inc.
- Naeem Islam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vertical semiconductor device with improved ruggedness
- Patent number 11,489,069
- Issue date Nov 1, 2022
- Wolfspeed, Inc.
- Daniel Jenner Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Trench bottom shielding methods and approaches for trenched semicon...
- Patent number 11,355,630
- Issue date Jun 7, 2022
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with improved short circuit withstand time and...
- Patent number 11,309,413
- Issue date Apr 19, 2022
- Wolfspeed, Inc.
- Sei-Hyung Ryu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power switching devices with high dV/dt capability and methods of m...
- Patent number 11,184,001
- Issue date Nov 23, 2021
- Cree, Inc.
- Qingchun Zhang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wide bandgap semiconductor device
- Patent number 11,075,295
- Issue date Jul 27, 2021
- Cree, Inc.
- Sei-Hyung Ryu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hybrid power module
- Patent number 11,057,033
- Issue date Jul 6, 2021
- Cree, Inc.
- Edward Robert Van Brunt
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power module for supporting high current densities
- Patent number 11,024,731
- Issue date Jun 1, 2021
- Cree, Inc.
- Jason Patrick Henning
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power switching devices with DV/DT capability and methods of making...
- Patent number 10,601,413
- Issue date Mar 24, 2020
- Cree, Inc.
- Qingchun Zhang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vertical FET structure
- Patent number 10,269,955
- Issue date Apr 23, 2019
- Cree, Inc.
- Sei-Hyung Ryu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING DEEP TRENCH SHIELD C...
- Publication number 20250241040
- Publication date Jul 24, 2025
- Wolfspeed, Inc.
- Madankumar Sampath
Information Patent Application
ENHANCED ISOLATION FOR ON-CHIP CURRENT SENSORS
- Publication number 20250169166
- Publication date May 22, 2025
- Wolfspeed, Inc.
- Madankumar Sampath
- G01 - MEASURING TESTING
Information Patent Application
MASK INTEGRATION FOR TRENCHED SEMICONDUCTOR DEVICE STRUCTURES
- Publication number 20250169105
- Publication date May 22, 2025
- Wolfspeed, Inc.
- Woongsun Kim
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES WITH DEEP JFET PATTERNS
- Publication number 20250169128
- Publication date May 22, 2025
- Wolfspeed, Inc.
- Naeem Islam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SPLIT SUPPORT SHIELD STRUCTURES FOR TRENCHED SEMICONDUCTOR DEVICES...
- Publication number 20250159948
- Publication date May 15, 2025
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING CHANNELS WITH HORIZO...
- Publication number 20250142868
- Publication date May 1, 2025
- Wolfspeed, Inc.
- Woongsun Kim
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING TRENCH SHIELDING REG...
- Publication number 20250142877
- Publication date May 1, 2025
- Wolfspeed, Inc.
- Woongsun Kim
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING DEEP SUPPORT SHIELDS...
- Publication number 20250120133
- Publication date Apr 10, 2025
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING SHAPED DEEP SUPPORT...
- Publication number 20250120119
- Publication date Apr 10, 2025
- Wolfspeed, Inc.
- Madankumar Sampath
Information Patent Application
Power Semiconductor Device Having Shaped Trench Ends
- Publication number 20250107124
- Publication date Mar 27, 2025
- Wolfspeed, Inc.
- Woongsun Kim
Information Patent Application
Power Semiconductor Device with Balancing Shunt Structure
- Publication number 20250089316
- Publication date Mar 13, 2025
- Wolfspeed, Inc.
- Charlotte Elizabeth Jonas
Information Patent Application
POWER SEMICONDUCTOR DEVICES HAVING GATE TRENCHES WITH ASYMMETRICALL...
- Publication number 20250072044
- Publication date Feb 27, 2025
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SIDEWALL DOPANT SHIELDING METHODS AND APPROACHES FOR TRENCHED SEMIC...
- Publication number 20240413197
- Publication date Dec 12, 2024
- Wolfspeed, Inc.
- Daniel J. Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER SEMICONDUCTOR DEVICES INCLUDING ANGLED GATE TRENCHES
- Publication number 20240395927
- Publication date Nov 28, 2024
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MOSFETS WITH IMPLANTED CHARGE COMPENSATION REGIONS
- Publication number 20240387620
- Publication date Nov 21, 2024
- Wolfspeed, Inc.
- Kijeong Han
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIDE BANDGAP SEMICONDUCTOR DEVICE WITH SENSOR ELEMENT
- Publication number 20240379667
- Publication date Nov 14, 2024
- Wolfspeed, Inc.
- Joohyung Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EDGE TERMINATION FOR POWER SEMICONDUCTOR DEVICES AND RELATED FABRIC...
- Publication number 20240290832
- Publication date Aug 29, 2024
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER TRANSISTOR WITH SOFT RECOVERY BODY DIODE
- Publication number 20240266432
- Publication date Aug 8, 2024
- Wolfspeed, Inc.
- Kijeong Han
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BURIED SHIELD STRUCTURES FOR POWER SEMICONDUCTOR DEVICES INCLUDING...
- Publication number 20240234567
- Publication date Jul 11, 2024
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BURIED SHIELD STRUCTURES FOR POWER SEMICONDUCTOR DEVICES AND RELATE...
- Publication number 20240234507
- Publication date Jul 11, 2024
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING SELF-ALIGNED TRENCH...
- Publication number 20240234495
- Publication date Jul 11, 2024
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL POWER DEVICES FABRICATED USING IMPLANTED METHODS
- Publication number 20240178314
- Publication date May 30, 2024
- Wolfspeed, Inc.
- Daniel Jenner Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING IMPROVED BREAKDOWN P...
- Publication number 20230420527
- Publication date Dec 28, 2023
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHODS OF FORMING OHMIC CONTACTS ON SEMICONDUCTOR DEVICES WITH TRE...
- Publication number 20230420536
- Publication date Dec 28, 2023
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING TRENCH SHIELDING PAT...
- Publication number 20230411446
- Publication date Dec 21, 2023
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL POWER DEVICES HAVING MESAS AND ETCHED TRENCHES THEREBETWEEN
- Publication number 20230369445
- Publication date Nov 16, 2023
- Wolfspeed, Inc.
- Daniel Jenner Lichtenwalner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING IMPROVED DEEP SHIELD...
- Publication number 20230369486
- Publication date Nov 16, 2023
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DYNAMIC PERFORMANCE OF ON-CHIP CURRENT SENSORS
- Publication number 20230361212
- Publication date Nov 9, 2023
- Wolfspeed, Inc.
- Madankumar Sampath
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SUPPORT SHIELD STRUCTURES FOR TRENCHED SEMICONDUCTOR DEVICES
- Publication number 20230307529
- Publication date Sep 28, 2023
- Wolfspeed, Inc.
- Woongsun Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICES HAVING GATE RESISTORS WITH LOW VARIATION IN R...
- Publication number 20230268407
- Publication date Aug 24, 2023
- Wolfspeed, Inc.
- Sei-Hyung Ryu
- H01 - BASIC ELECTRIC ELEMENTS

Sei-Hyung Ryu

Person

Patents Grantslast 30 patents

Vertical power devices fabricated using implanted methods

Power semiconductor devices including a trenched gate and methods o...

Trench bottom shielding methods and approaches for trenched semicon...

Protection structures for semiconductor devices with sensor arrange...

FinFET power semiconductor devices

Sidewall dopant shielding methods and approaches for trenched semic...

Vertical semiconductor device with improved ruggedness

Power semiconductor devices including angled gate trenches

Wide bandgap semiconductor device with sensor element

Edge termination for power semiconductor devices and related fabric...

Power transistor with soft recovery body diode

Vertical power devices fabricated using implanted methods

Power silicon carbide based semiconductor devices with improved sho...

Gate trench power semiconductor devices having improved deep shield...

Gate trench power semiconductor devices having improved deep shield...

Power transistor with soft recovery body diode

Gate trench power semiconductor devices having improved deep shield...

Semiconductor devices having gate resistors with low variation in r...

Semiconductor power devices having multiple gate trenches and metho...

Power semiconductor devices including a trenched gate and methods o...

Gate trench power semiconductor devices having improved deep shield...

Vertical semiconductor device with improved ruggedness

Trench bottom shielding methods and approaches for trenched semicon...

Semiconductor device with improved short circuit withstand time and...

Power switching devices with high dV/dt capability and methods of m...

Wide bandgap semiconductor device

Hybrid power module

Power module for supporting high current densities

Power switching devices with DV/DT capability and methods of making...

Vertical FET structure

Patents Applicationslast 30 patents

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING DEEP TRENCH SHIELD C...

ENHANCED ISOLATION FOR ON-CHIP CURRENT SENSORS

MASK INTEGRATION FOR TRENCHED SEMICONDUCTOR DEVICE STRUCTURES

GATE TRENCH POWER SEMICONDUCTOR DEVICES WITH DEEP JFET PATTERNS

SPLIT SUPPORT SHIELD STRUCTURES FOR TRENCHED SEMICONDUCTOR DEVICES...

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING CHANNELS WITH HORIZO...

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING TRENCH SHIELDING REG...

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING DEEP SUPPORT SHIELDS...

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING SHAPED DEEP SUPPORT...

Power Semiconductor Device Having Shaped Trench Ends

Power Semiconductor Device with Balancing Shunt Structure

POWER SEMICONDUCTOR DEVICES HAVING GATE TRENCHES WITH ASYMMETRICALL...

SIDEWALL DOPANT SHIELDING METHODS AND APPROACHES FOR TRENCHED SEMIC...

POWER SEMICONDUCTOR DEVICES INCLUDING ANGLED GATE TRENCHES

MOSFETS WITH IMPLANTED CHARGE COMPENSATION REGIONS

WIDE BANDGAP SEMICONDUCTOR DEVICE WITH SENSOR ELEMENT

EDGE TERMINATION FOR POWER SEMICONDUCTOR DEVICES AND RELATED FABRIC...

POWER TRANSISTOR WITH SOFT RECOVERY BODY DIODE

BURIED SHIELD STRUCTURES FOR POWER SEMICONDUCTOR DEVICES INCLUDING...

BURIED SHIELD STRUCTURES FOR POWER SEMICONDUCTOR DEVICES AND RELATE...

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING SELF-ALIGNED TRENCH...

VERTICAL POWER DEVICES FABRICATED USING IMPLANTED METHODS

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING IMPROVED BREAKDOWN P...

METHODS OF FORMING OHMIC CONTACTS ON SEMICONDUCTOR DEVICES WITH TRE...

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING TRENCH SHIELDING PAT...

VERTICAL POWER DEVICES HAVING MESAS AND ETCHED TRENCHES THEREBETWEEN

GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING IMPROVED DEEP SHIELD...

DYNAMIC PERFORMANCE OF ON-CHIP CURRENT SENSORS

SUPPORT SHIELD STRUCTURES FOR TRENCHED SEMICONDUCTOR DEVICES

SEMICONDUCTOR DEVICES HAVING GATE RESISTORS WITH LOW VARIATION IN R...