Prosecution Insights
Last updated: July 17, 2026
Application No. 18/431,346

REDUCING OXIDATION BY ETCHING SACRIFICIAL AND PROTECTION LAYER SEPARATELY

Non-Final OA
Filed
Feb 02, 2024
Priority
Jun 17, 2021 — provisional 63/211,772 +1 more
Examiner
AMER, MOUNIR S
Art Unit
2818
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Taiwan Semiconductor Manufacturing Company, Ltd.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
542 granted / 614 resolved
+20.3% vs TC avg
Moderate +9% lift
Without
With
+8.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
16 currently pending
Career history
638
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
76.8%
+36.8% vs TC avg
§102
10.3%
-29.7% vs TC avg
§112
1.1%
-38.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 614 resolved cases

Prosecution Timeline

Feb 02, 2024
Application Filed
Mar 27, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12685036
PHASE CHANGE MATERIAL RADIO-FREQUENCY SWITCH FOR LOW POWER CONSUMPTION AND METHODS FOR FORMING THE SAME
3y 2m to grant Granted Jul 14, 2026
Patent 12677603
PHASE CHANGE MATERIAL RADIO-FREQUENCY DEVICE AND METHODS FOR FORMING THE SAME
3y 2m to grant Granted Jul 07, 2026
Patent 12672294
RESISTIVE MEMORY DEVICE AND MANUFACTURING METHOD THEREOF
2y 11m to grant Granted Jun 30, 2026
Patent 12660241
RELEASED FIN FOR ADVANCED INTEGRATED CIRCUIT STRUCTURE FABRICATION
4y 11m to grant Granted Jun 16, 2026
Patent 12660594
CHIP PACKAGE STRUCTURE WITH SUBSTRATES AND METHOD FOR FORMING THE SAME
3y 1m to grant Granted Jun 16, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
88%
Grant Probability
97%
With Interview (+8.7%)
2y 0m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 614 resolved cases by this examiner. Grant probability derived from career allowance rate.

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