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Last updated: October 25, 2026

Wolfspeed Inc.: all pending office actions

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App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19230629 Method and System to Measure Optical Characteristics of Light-Transmissive Materials DOUMBIA, MOHAMED 2877 §102§103§112 Non-Final OA — Pending Jun 06, 2025
18930630 DUAL INLINE POWER MODULE TRAN, BINH BACH THANH 2847 §102§103 Non-Final OA — Pending Oct 29, 2024
18915457 CIRCUITRY FOR ALLOWING MULTIPLE SENSORS ON A SEMICONDUCTOR DIE TO SHARE A COMMON SENSOR PAD GIBSON, RANDY W 2855 §102 Non-Final OA — Pending Oct 15, 2024
18910403 SEMICONDUCTOR DEVICES WITH LENGTH-GRADED CHANNEL DULKA, JOHN P 2817 §102§103§112 Non-Final OA — Pending Oct 09, 2024
18830731 POWER SEMICONDUCTOR DEVICES INCLUDING DEEP SHIELDING REGIONS ZHU, SHENG-BAI 2897 §102§103 Non-Final OA — Pending Sep 11, 2024
18828024 LARGE DIMENSION SILICON CARBIDE SINGLE CRYSTALLINE MATERIALS WITH REDUCED CRYSTALLOGRAPHIC STRESS KUNEMUND, ROBERT M 1714 §102§103 Non-Final OA — Pending Sep 09, 2024
18792813 POWER SEMICONDUCTOR DEVICES INCLUDING ANGLED GATE TRENCHES ANYA, IGWE U 2891 §102§103 Non-Final OA — Pending Aug 02, 2024
18775934 Silicon Carbide Wafers with Relaxed Positive Bow and Related Methods GHEYAS, SYED I 2893 §103Other Non-Final OA — Pending Jul 17, 2024
18759385 High Throughput High Dynamic Range (HDR) Microscopy THIRUGNANAM, GANDHI 2672 §101§102§103§112 Non-Final OA — Pending Jun 28, 2024
18755884 GATE-CONTROLLED SEMICONDUCTOR DEVICES HAVING TEMPERATURE COMPENSATED GATE RESISTANCES MOVVA, AMAR 2898 §102§103 Non-Final OA — Pending Jun 27, 2024
18751832 REDUCED OPTICAL ABSORPTION FOR SILICON CARBIDE CRYSTALLINE MATERIALS AHMAD, KHAJA 2813 §103 Non-Final OA — Pending Jun 24, 2024
18742626 TRENCH BASED SEMICONDUCTOR DEVICES WITH INCREASED PLANARITY SUN, YU-HSI DAVID 2817 §102 Non-Final OA — Pending Jun 13, 2024
18737609 Method and System to Measure Optical Characteristics of Light-Transmissive Materials DOUMBIA, MOHAMED 2877 §102§103§112 Non-Final OA — Pending Jun 07, 2024
18733442 POWER DISCRETE PACKAGE HAVING SYMMETRIC PINOUTS AND PROCESS OF IMPLEMENTING THE SAME BOOTH, RICHARD A 2812 §103§112 Non-Final OA — Pending Jun 04, 2024
18663862 Workpiece Surface Processing System for Semiconductor Wafers ISHAQ, ISHAQ MOHAMED SAID 3723 §102§103§112 Non-Final OA — Pending May 14, 2024
18663985 SEMICONDUCTOR DEVICES WITH GATE BUS LAYOUTS FOR HANDLING UNCLAMPED INDUCTIVE SWITCHING CURRENT THROCKMORTON, ROBERT EMIL 2818 §102§103§112 Non-Final OA — Pending May 14, 2024
18655542 SEMICONDUCTOR DEVICES HAVING METAL GATE RUNNERS WITH ASYMMETRIC OUTER GATE RUNNERS, UNEVENLY-SPACED INNER GATE RUNNERS AND/OR SPINE-RIB INNER GATE RUNNERS WITH MULTIPLE RIBS HA, NATHAN W 2814 §102§103 Non-Final OA — Pending May 06, 2024
18636381 POWER TRANSISTOR WITH SOFT RECOVERY BODY DIODE ALAM, MOHAMMED R 2897 §102§103DP Non-Final OA — Pending Apr 16, 2024
18633618 GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING ENHANCED AVALANCHE ROBUSTNESS AND METHODS OF FORMING SUCH DEVICES SALERNO, SARAH KATE 2814 §102 Non-Final OA — Pending Apr 12, 2024
18612356 POWER DEVICES WITH BARRIER METAL EXTENSION AND SEALING GHEYAS, SYED I 2893 §102§103 Non-Final OA — Pending Mar 21, 2024
18610394 GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING TRENCH SHIELDING REGIONS AND METHODS OF FORMING THE SAME SPALLA, DAVID C 2893 §102 Non-Final OA — Pending Mar 20, 2024
18598866 MOSFETS WITH IMPLANTED CHARGE COMPENSATION REGIONS MEHTA, RATISHA 2817 §102§103 Non-Final OA — Pending Mar 07, 2024
18589080 DC LINK SNUBBER DEVICE CONFIGURED FOR CONNECTION TO A POWER MODULE AND/OR THE LIKE AND PROCESSES OF IMPLEMENTING THE SAME TIKU, SISAY G 2838 §103 Non-Final OA 70d Pending Feb 27, 2024
18586142 DEVICE PACKAGE HAVING A CONTACTLESS SENSOR AND PROCESS OF IMPLEMENTING THE SAME CHIU, TSZ K 2898 §102§103 Final Rejection — Pending Feb 23, 2024
18584179 Integrated Active Cooling in Power Packages TRAPANESE, WILLIAM C 2812 §103 Final Rejection — Pending Feb 22, 2024
18581339 SILICON CARBIDE POWER DEVICES HAVING EXPANDED CREEPAGE DISTANCES TORNOW, MARK W 2891 §102§103 Non-Final OA — Pending Feb 19, 2024
18443031 Layered Metallization in Power Semiconductor Packages VALENZUELA, PATRICIA D 2812 §103 Non-Final OA — Pending Feb 15, 2024
18422617 Anti-Reflective Layer for Protecting an N-Polar Group III-Nitride Semiconductor Structure MULERO FLORES, ERIC MANUEL 2898 §103§112 Final Rejection — Pending Jan 25, 2024
18422677 Thermally Stable FinFET Device for High Temperature Operation LOHAKARE, PRATIKSHA JAYANT 2818 §103 Final Rejection — Pending Jan 25, 2024
18412190 Power Semiconductor Device Having Improved Transient Handling Without Field Insulating Layer GALVAN, ANGELICA ROS ESTIGOY 2815 §102§112 Non-Final OA — Pending Jan 12, 2024
18405721 Power Semiconductor Devices Including Shape-Memory Metallization MAZUMDER, DIDARUL A 2812 §102§103 Final Rejection 33d Pending Jan 05, 2024
18403068 SILICON CARBIDE BASED SEMICONDUCTOR DEVICES WITH RING-SHAPED CHANNEL REGIONS AND/OR CHANNEL REGIONS THAT EXTEND IN MULTIPLE DIRECTIONS IN PLAN VIEW LEE, EUGENE 2815 §103 Final Rejection — Pending Jan 03, 2024
18545648 Electroless Deposition Process for Semiconductor Devices PAGE, STEVEN MITCHELL CHR 2812 §102 Final Rejection — Pending Dec 19, 2023
18540135 ASYMMETRIC EDGE TERMINATION WALL, VINCENT 2898 §103 Non-Final OA — Pending Dec 14, 2023
18518105 REVERSIBLE POWER MODULE AND A PROCESS OF IMPLEMENTING A REVERSIBLE POWER MODULE HOQUE, MOHAMMAD M 2817 §102§103 Non-Final OA — Pending Nov 22, 2023
18514038 MASK INTEGRATION FOR TRENCHED SEMICONDUCTOR DEVICE STRUCTURES CHANG, JAY C 2817 §102 Final Rejection — Pending Nov 20, 2023
18510756 ENHANCED ISOLATION FOR ON-CHIP CURRENT SENSORS LOPEZ, JORGE ANDRES 2897 §103 Non-Final OA — Pending Nov 16, 2023
18510734 GATE TRENCH POWER SEMICONDUCTOR DEVICES WITH DEEP JFET PATTERNS MCDONALD, JASON ANDREW 2898 §103 Non-Final OA — Pending Nov 16, 2023
18505197 PACKAGED TRANSISTOR WITH CHANNELED DIE ATTACH MATERIALS AND PROCESS OF IMPLEMENTING THE SAME NGUYEN, KHIEM D 2892 §102§103Other Final Rejection — Pending Nov 09, 2023
18383733 GROUP III-NITRIDE HIGH-ELECTRON MOBILITY TRANSISTORS CONFIGURED WITH A LOW RESISTANCE CONTACT LAYER FOR SOURCE AND/OR DRAIN CONTACTS AND PROCESS FOR IMPLEMENTING THE SAME MENZ, DOUGLAS M 2897 §102§103 Final Rejection — Pending Oct 25, 2023
18493838 GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING TRENCH SHIELDING REGIONS AND SUPPORT SHIELDS THAT EXTEND TO DIFFERENT DEPTHS RAMOS-DIAZ, FERNANDO JOSE 2818 §102§103§112 Final Rejection 7d Pending Oct 25, 2023
18488284 Direct Bonded Semiconductor Die Package SUN, YU-HSI DAVID 2817 §102§103 Final Rejection 22d Pending Oct 17, 2023
18487665 Multifunctional Adhesion Promoter for Semiconductor Device Packages FANG, SHANE 1766 §102§103§112 Non-Final OA — Pending Oct 16, 2023
18476452 POWER SILICON CARBIDE BASED SEMICONDUCTOR DEVICES WITH SELECTIVE JFET IMPLANTS THAT ARE SELF-ALIGNED WITH THE WELL REGIONS AND METHODS OF MAKING SUCH DEVICES NGUYEN, SOPHIA T 2893 §103 Final Rejection 39d Pending Sep 28, 2023
18475370 Semiconductor Die Bonding LIU, MIKKA H 2817 §103 Final Rejection — Pending Sep 27, 2023
18475298 Power Semiconductor Device Having Shaped Trench Ends RAHIM, NILUFA 2893 §102§103§112 Final Rejection 18d overdue Pending Sep 27, 2023
18471003 Corrosion Resistant Metal Structures for Wide Bandgap Semiconductor Devices HAN, JONATHAN 2818 §103 Non-Final OA — Pending Sep 20, 2023
18456782 Thermal Enhanced Power Semiconductor Package PRASAD, NEIL R 2897 §102§103Other Final Rejection 35d Pending Aug 28, 2023
18453414 POWER SEMICONDUCTOR DEVICES HAVING GATE TRENCHES WITH ASYMMETRICALLY ROUNDED UPPER AND LOWER TRENCH CORNERS AND/OR RECESSED GATE ELECTRODES AND METHODS OF FABRICATING SUCH DEVICES CHEN, YU 2896 §103 Final Rejection 56d Pending Aug 22, 2023
18213500 SILICON CARBIDE SEMICONDUCTOR DEVICES WITH SUPERJUNCTIONS LIU, XIAOMING 2812 §102§103 Non-Final OA 16d overdue Pending Jun 23, 2023
18336358 Semiconductor Package VALENZUELA, PATRICIA D 2812 §103 Final Rejection 10d overdue Pending Jun 16, 2023
18336376 Die-Attach Fillet Height Reduction VALENZUELA, PATRICIA D 2812 §103 Non-Final OA 22d overdue Pending Jun 16, 2023
18304869 Power Semiconductor Devices Including Beryllium Metallization GHEYAS, SYED I 2893 §103 Final Rejection 17d overdue Pending Apr 21, 2023
18125655 SEMICONDUCTOR DEVICES WITH INTEGRATED TEST AREAS LIU, XIAOMING 2812 §103 Non-Final OA 16d overdue Pending Mar 23, 2023
18187924 HIGH-PERFORMANCE STRESS BUFFER DIE-COAT AND DEVICES AND PROCESSES IMPLEMENTING THE SAME YAP, DOUGLAS ANTHONY 2899 §103 Non-Final OA 29d overdue Pending Mar 22, 2023
18187804 DIE-COAT MATERIAL CONFIGURED TO ENHANCE DEVICE RELIABILITY AND DEVICES AND PROCESSES IMPLEMENTING THE SAME ARORA, AJAY 2892 §102§103 Non-Final OA 23d overdue Pending Mar 22, 2023
18169492 Electroless Die-Attach Process for Semiconductor Packaging ISAAC, STANETTA D 2898 §102§103 Non-Final OA — Pending Feb 15, 2023
18168985 Vias for Semiconductor Devices Formed from Multiple Etching MIHALIOV, DMITRI 2812 §103 Non-Final OA 19d Pending Feb 14, 2023
18164205 Semiconductor Device Having Semiconductor Structure with Polarity Inverting Layer KIM, JAY C 2815 §102§103 Non-Final OA 5d Pending Feb 03, 2023
18164249 Semiconductor Structure for Improved Radio Frequency Thermal Management PATEL, REEMA 2812 §112 Final Rejection 75d Pending Feb 03, 2023
18154353 Thermal Enhanced Power Semiconductor Package PRASAD, NEIL R 2897 §102§103Other Non-Final OA 2d overdue Pending Jan 13, 2023
18093343 GATE TRENCH POWER SEMICONDUCTOR DEVICES HAVING SELF-ALIGNED TRENCH SHIELDING REGIONS AND RELATED METHODS CHEN, JACK S J 2893 §112 Non-Final OA — Pending Jan 05, 2023
18063787 TRANSISTOR DEVICES INCLUDING SELF-ALIGNED OHMIC CONTACTS AND CONTACT REGIONS AND RELATED FABRICATION METHODS NICELY, JOSEPH C 2813 §103 Non-Final OA — Pending Dec 09, 2022
17935509 HIGH RELIABILITY SEMICONDUCTOR DEVICES AND METHODS OF FABRICATING THE SAME ISAAC, STANETTA D 2898 §102§103 Non-Final OA — Pending Sep 26, 2022
17867801 Multi-Cavity Package Having Single Metal Flange WHALEN, DANIEL B 2893 §102§103 Non-Final OA — Pending Jul 19, 2022
17849316 TOP SIDE COOLED SEMICONDUCTOR PACKAGES PAGE, DALE E 2899 §103 Final Rejection — Pending Jun 24, 2022
17736720 DYNAMIC PERFORMANCE OF ON-CHIP CURRENT SENSORS SMITH, BRADLEY 2817 §102§103§112 Final Rejection 348d overdue Pending May 04, 2022
17138193 PROCESS, SYSTEM, AND DEVICE FOR DETERMINING A RELATED PRODUCT CHAMPAGNE, LUNA 3627 §103§112 Non-Final OA 13d Pending Dec 30, 2020
14212991 IGBT STRUCTURE FOR WIDE BAND-GAP SEMICONDUCTOR MATERIALS CHEN, DAVID Z 2815 §103 Non-Final OA 40d Pending Mar 14, 2014

Data sourced from USPTO Patent File Wrapper (daily) and Office Action Archive (weekly). Analysis generated by IP Author.

Data: USPTO Patent File Wrapper (daily) • Office Action Archive (weekly) • 89M+ prosecution events

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