Prosecution Insights
Last updated: October 01, 2026

Examiner: SUN, YU-HSI DAVID

Tech Center 2800 • Art Units: 2800 2817 2895 2897

This examiner grants 78% of resolved cases

Analysis

Yu-Hsi David Sun serves as a patent examiner in Tech Center 2800, working within Art Unit 2800. The examiner has reached a resolution in 879 cases. The allowance rate for these cases is 77.5 percent. This 77.5 percent rate provides a measure of how often applications are granted. Practitioners can use this data to evaluate the probability of a favorable outcome when an application is assigned to this examiner.

The record shows an interview lift of 8.4 percent. This positive 8.4 percent lift indicates that applications involving an interview are more likely to be allowed than those that are not. This suggests that direct discussion with the examiner is a productive method for resolving issues. Practitioners should consider the 8.4 percent lift when deciding whether to request an interview during prosecution in Tech Center 2800.

The median days to allowance for this examiner is 973. This 973 figure represents the middle point of the time required to move from filing to a patent grant. With 879 resolved cases, this median offers a benchmark for the duration of the prosecution process. These figures assist in managing expectations for both the timing and the results of applications in Art Unit 2800.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

77.5%
Allow Rate
+9.5% vs TC avg
897
Total Applications
+8.4%
Interview Lift
973
Avg Prosecution Days
Based on 881 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
22.5%
§102 Novelty
46.3%
§103 Obviousness
19.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18746889 IMAGE SENSOR Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18679992 SEMICONDUCTOR PACKAGE Non-Final OA Samsung Electronics Co., Ltd.
18660294 SEMICONDUCTOR PACKAGE Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18674046 DISPLAY DEVICE Non-Final OA SAMSUNG DISPLAY CO., LTD.
18534698 SEMICONDUCTOR ELEMENT, ELECTRONIC DEVICE COMPRISING SEMICONDUCTOR ELEMENT, AND SEMICONDUCTOR CHIP Final Rejection InnoLux Corporation
18544012 ELECTRONIC DEVICE Final Rejection Commissariat à l'Énergie Atomique et aux Énergies Alternatives
18543862 HIGH EFFICIENCY QUANTUM DOT IMAGE SENSORS AND METHODS OF FORMING THE SAME Non-Final OA Adeia Semiconductor Bonding Technologies Inc.
18735859 SIDEWALL PINCH-OFF OF WORK FUNCTION METAL Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18619879 ISOLATING BACKSIDE CONTACTS Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18400523 AIRGAP SPACER WITH BACKSIDE POWER DELIVERY Non-Final OA International Business Machines Corporation
18641571 EX-SITU MANUFACTURE OF METAL MICRO-WIRES AND FIB PLACEMENT IN IC CIRCUITS Non-Final OA Texas Instruments Incorporated
18781853 TECHNIQUES FOR POSITIONING BOND PADS OF MICROELECTRONIC DEVICES AND RELATED MICROELECTRONIC DEVICES AND SYSTEMS Non-Final OA Micron Technology, Inc.
18658874 APPARATUSES AND METHODS FOR COUPLING A PLURALITY OF SEMICONDUCTOR DEVICES Non-Final OA MICRON TECHNOLOGY, INC.
18426796 CHIP PACKAGE STRUCTURE AND METHOD FOR FORMING THE SAME Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18444858 SELF-ALIGNED STORAGE NODE CONTACT IN DYNAMIC RANDOM ACCESS MEMORY (DRAM) DEVICE Non-Final OA Applied Materials, Inc.
18663675 SEMICONDUCTOR DEVICE Non-Final OA ROHM CO., LTD.
18675167 SEMICONDUCTOR STRUCTURE AND METHOD OF FORMING THE SAME Non-Final OA HON HAI PRECISION INDUSTRY CO., LTD.
18742626 TRENCH BASED SEMICONDUCTOR DEVICES WITH INCREASED PLANARITY Non-Final OA Wolfspeed, Inc.
18488284 Direct Bonded Semiconductor Die Package Final Rejection Wolfspeed, Inc.
18681388 MULTILAYER PACKAGE-ON-PACKAGE ASSEMBLY AND METHOD FOR PACKAGING MULTILAYER ASSEMBLY Non-Final OA SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.

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