Clifford Drowley

Person

Santa Clara, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and system for etch depth control in III-V semiconductor dev...
- Patent number 12,334,352
- Issue date Jun 17, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Wayne Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication method for JFET with implant isolation
- Patent number 12,274,086
- Issue date Apr 8, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
Information Patent Grant
Method and system for fabricating fiducials using selective area gr...
- Patent number 12,272,654
- Issue date Apr 8, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Methods and systems to improve uniformity in power FET arrays
- Patent number 12,262,557
- Issue date Mar 25, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
Information Patent Grant
Method and system for control of sidewall orientation in vertical g...
- Patent number 12,224,344
- Issue date Feb 11, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for fin-based voltage clamp
- Patent number 12,155,204
- Issue date Nov 26, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Andrew J. Walker
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coupled guard rings for edge termination
- Patent number 12,136,645
- Issue date Nov 5, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for fabrication of a vertical fin-based field eff...
- Patent number 12,125,914
- Issue date Oct 22, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system of junction termination extension in high voltage...
- Patent number 12,113,101
- Issue date Oct 8, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Subhash Srinivas Pidaparthi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of fabricating super-junction based vertical gallium nitride...
- Patent number 12,080,757
- Issue date Sep 3, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Hao Cui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Self-aligned isolation for self-aligned contacts for vertical FETS
- Patent number 11,996,407
- Issue date May 28, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for etch depth control in III-V semiconductor dev...
- Patent number 11,948,801
- Issue date Apr 2, 2024
- NEXGEN POWER SYSTEMS, INC.
- Wayne Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for fabricating fiducials using selective area gr...
- Patent number 11,935,838
- Issue date Mar 19, 2024
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication method for JFET with implant isolation
- Patent number 11,929,440
- Issue date Mar 12, 2024
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Regrowth uniformity in GaN vertical devices
- Patent number 11,916,134
- Issue date Feb 27, 2024
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of fabricating super-junction based vertical gallium nitride...
- Patent number 11,824,086
- Issue date Nov 21, 2023
- NEXGEN POWER SYSTEMS, INC.
- Hao Cui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for fabrication of a vertical fin-based field eff...
- Patent number 11,735,671
- Issue date Aug 22, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for regrown source contacts for vertical gallium nitride bas...
- Patent number 11,728,415
- Issue date Aug 15, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
JFET with implant isolation
- Patent number 11,637,209
- Issue date Apr 25, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Super-junction based vertical gallium nitride JFET power devices
- Patent number 11,575,000
- Issue date Feb 7, 2023
- NEXGEN POWER SYSTEMS, INC.
- Hao Cui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for fabrication of a vertical fin-based field eff...
- Patent number 11,335,810
- Issue date May 17, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for fabricating fiducials using selective area gr...
- Patent number 11,315,884
- Issue date Apr 26, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
FABRICATION METHOD FOR JFET WITH IMPLANT ISOLATION
- Publication number 20250212467
- Publication date Jun 26, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Ian DROWLEY
Information Patent Application
METHOD AND SYSTEM TO IMPROVE UNIFORMITY IN POWER FET ARRAYS
- Publication number 20250194236
- Publication date Jun 12, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Ian DROWLEY
Information Patent Application
METHOD AND SYSTEM FOR CONTROL OF SIDEWALL ORIENTATION IN VERTICAL G...
- Publication number 20250151319
- Publication date May 8, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Ian DROWLEY
Information Patent Application
METHOD AND SYSTEM FOR A FIN-BASED VOLTAGE CLAMP
- Publication number 20250055276
- Publication date Feb 13, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Andrew J. WALKER
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COUPLED GUARD RINGS FOR EDGE TERMINATION
- Publication number 20250031416
- Publication date Jan 23, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford DROWLEY
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM OF JUNCTION TERMINATION EXTENSION IN HIGH VOLTAGE...
- Publication number 20250006784
- Publication date Jan 2, 2025
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Subhash Srinivas PIDAPARTHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF FABRICATING SUPER-JUNCTION BASED VERTICAL GALLIUM NITRIDE...
- Publication number 20240371929
- Publication date Nov 7, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Hao CUI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR FABRICATING FIDUCIALS USING SELECTIVE AREA GR...
- Publication number 20240274545
- Publication date Aug 15, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SELF-ALIGNED ISOLATION FOR SELF-ALIGNED CONTACTS FOR VERTICAL FETS
- Publication number 20240274602
- Publication date Aug 15, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford DROWLEY
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FABRICATION METHOD FOR JFET WITH IMPLANT ISOLATION
- Publication number 20240274725
- Publication date Aug 15, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REGROWTH UNIFORMITY IN GAN VERTICAL DEVICES
- Publication number 20240258408
- Publication date Aug 1, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR ETCH DEPTH CONTROL IN III-V SEMICONDUCTOR DEV...
- Publication number 20240242969
- Publication date Jul 18, 2024
- SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Wayne CHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NEGATIVE CHARGE EXTRACTION STRUCTURE FOR EDGE TERMINATION
- Publication number 20240120417
- Publication date Apr 11, 2024
- NEXGEN POWER SYSTEMS, INC.
- Kyoung Wook Seok
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF FABRICATING SUPER-JUNCTION BASED VERTICAL GALLIUM NITRIDE...
- Publication number 20240105767
- Publication date Mar 28, 2024
- NEXGEN POWER SYSTEMS, INC.
- Hao Cui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL GALLIUM NITRIDE BASED FETS WITH REGROWN SOURCE CONTACTS
- Publication number 20230420547
- Publication date Dec 28, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR FABRICATION OF A VERTICAL FIN-BASED FIELD EFF...
- Publication number 20230411525
- Publication date Dec 21, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR FIN-BASED VOLTAGE CLAMP
- Publication number 20230378750
- Publication date Nov 23, 2023
- NEXGEN POWER SYSTEMS, INC.
- Andrew J. Walker
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR ROUTING OF ELECTRICAL CONDUCTORS OVER NEUTRAL...
- Publication number 20230378348
- Publication date Nov 23, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR (FINFET) WITH CONNECTED...
- Publication number 20230361126
- Publication date Nov 9, 2023
- NEXGEN POWER SYSTEMS, INC.
- Andrew P. Edwards
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR (FINFET) WITH VARYING CO...
- Publication number 20230260996
- Publication date Aug 17, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR (FINFET) WITH NEUTRALIZE...
- Publication number 20230246027
- Publication date Aug 3, 2023
- NEXGEN POWER SYSTEMS, INC.
- Subhash Srinivas Pidaparthi
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD AND SYSTEM FOR FABRICATING REGROWN FIDUCIALS FOR SEMICONDUCT...
- Publication number 20230230931
- Publication date Jul 20, 2023
- NEXGEN POWER SYSTEMS, INC.
- Karthik Suresh Arulalan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR FABRICATING FIDUCIALS FOR PROCESSING OF SEMIC...
- Publication number 20230230932
- Publication date Jul 20, 2023
- NEXGEN POWER SYSTEMS, INC.
- David DeMuynck
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FABRICATION METHOD FOR JFET WITH IMPLANT ISOLATION
- Publication number 20230215958
- Publication date Jul 6, 2023
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF FABRICATING SUPER-JUNCTION BASED VERTICAL GALLIUM NITRIDE...
- Publication number 20230127978
- Publication date Apr 27, 2023
- NEXGEN POWER SYSTEMS, INC.
- Hao Cui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR CONTROL OF SIDEWALL ORIENTATION IN VERTICAL G...
- Publication number 20220328688
- Publication date Oct 13, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHODS AND SYSTEMS TO IMPROVE UNIFORMITY IN POWER FET ARRAYS
- Publication number 20220328476
- Publication date Oct 13, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR FABRICATION OF A VERTICAL FIN-BASED FIELD EFF...
- Publication number 20220310843
- Publication date Sep 29, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR FABRICATING FIDUCIALS USING SELECTIVE AREA GR...
- Publication number 20220293530
- Publication date Sep 15, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHODS AND SYSTEMS FOR FABRICATION OF VERTICAL FIN-BASED JFETS
- Publication number 20220254918
- Publication date Aug 11, 2022
- NEXGEN POWER SYSTEMS, INC.
- Clifford Drowley
- H01 - BASIC ELECTRIC ELEMENTS

Clifford Drowley

Person

Patents Grantslast 30 patents

Method and system for etch depth control in III-V semiconductor dev...

Fabrication method for JFET with implant isolation

Method and system for fabricating fiducials using selective area gr...

Methods and systems to improve uniformity in power FET arrays

Method and system for control of sidewall orientation in vertical g...

Method and system for fin-based voltage clamp

Coupled guard rings for edge termination

Method and system for fabrication of a vertical fin-based field eff...

Method and system of junction termination extension in high voltage...

Method of fabricating super-junction based vertical gallium nitride...

Self-aligned isolation for self-aligned contacts for vertical FETS

Method and system for etch depth control in III-V semiconductor dev...

Method and system for fabricating fiducials using selective area gr...

Fabrication method for JFET with implant isolation

Regrowth uniformity in GaN vertical devices

Method of fabricating super-junction based vertical gallium nitride...

Method and system for fabrication of a vertical fin-based field eff...

Method for regrown source contacts for vertical gallium nitride bas...

JFET with implant isolation

Super-junction based vertical gallium nitride JFET power devices

Method and system for fabrication of a vertical fin-based field eff...

Method and system for fabricating fiducials using selective area gr...

Patents Applicationslast 30 patents

FABRICATION METHOD FOR JFET WITH IMPLANT ISOLATION

METHOD AND SYSTEM TO IMPROVE UNIFORMITY IN POWER FET ARRAYS

METHOD AND SYSTEM FOR CONTROL OF SIDEWALL ORIENTATION IN VERTICAL G...

METHOD AND SYSTEM FOR A FIN-BASED VOLTAGE CLAMP

COUPLED GUARD RINGS FOR EDGE TERMINATION

METHOD AND SYSTEM OF JUNCTION TERMINATION EXTENSION IN HIGH VOLTAGE...

METHOD OF FABRICATING SUPER-JUNCTION BASED VERTICAL GALLIUM NITRIDE...

METHOD AND SYSTEM FOR FABRICATING FIDUCIALS USING SELECTIVE AREA GR...

SELF-ALIGNED ISOLATION FOR SELF-ALIGNED CONTACTS FOR VERTICAL FETS

FABRICATION METHOD FOR JFET WITH IMPLANT ISOLATION

REGROWTH UNIFORMITY IN GAN VERTICAL DEVICES

METHOD AND SYSTEM FOR ETCH DEPTH CONTROL IN III-V SEMICONDUCTOR DEV...

NEGATIVE CHARGE EXTRACTION STRUCTURE FOR EDGE TERMINATION

METHOD OF FABRICATING SUPER-JUNCTION BASED VERTICAL GALLIUM NITRIDE...

VERTICAL GALLIUM NITRIDE BASED FETS WITH REGROWN SOURCE CONTACTS

METHOD AND SYSTEM FOR FABRICATION OF A VERTICAL FIN-BASED FIELD EFF...

METHOD AND SYSTEM FOR FIN-BASED VOLTAGE CLAMP

METHOD AND SYSTEM FOR ROUTING OF ELECTRICAL CONDUCTORS OVER NEUTRAL...

VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR (FINFET) WITH CONNECTED...

VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR (FINFET) WITH VARYING CO...

VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR (FINFET) WITH NEUTRALIZE...

METHOD AND SYSTEM FOR FABRICATING REGROWN FIDUCIALS FOR SEMICONDUCT...

METHOD AND SYSTEM FOR FABRICATING FIDUCIALS FOR PROCESSING OF SEMIC...

FABRICATION METHOD FOR JFET WITH IMPLANT ISOLATION

METHOD OF FABRICATING SUPER-JUNCTION BASED VERTICAL GALLIUM NITRIDE...

METHOD AND SYSTEM FOR CONTROL OF SIDEWALL ORIENTATION IN VERTICAL G...

METHODS AND SYSTEMS TO IMPROVE UNIFORMITY IN POWER FET ARRAYS

METHOD AND SYSTEM FOR FABRICATION OF A VERTICAL FIN-BASED FIELD EFF...

METHOD AND SYSTEM FOR FABRICATING FIDUCIALS USING SELECTIVE AREA GR...

METHODS AND SYSTEMS FOR FABRICATION OF VERTICAL FIN-BASED JFETS