Prosecution Insights
Last updated: April 19, 2026
Application No. 18/148,231

METAL FILL STRUCTURES FOR ISOLATORS TO MEET METAL DENSITY AND HIGH VOLTAGE ELECTRIC FIELD REQUIREMENTS

Final Rejection §102§Other
Filed
Dec 29, 2022
Examiner
PARKER, JOHN M
Art Unit
2899
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Texas Instruments Incorporated
OA Round
2 (Final)
92%
Grant Probability
Favorable
3-4
OA Rounds
2y 4m
To Grant
93%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allow Rate
763 granted / 831 resolved
+23.8% vs TC avg
Minimal +1% lift
Without
With
+0.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
24 currently pending
Career history
855
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
43.5%
+3.5% vs TC avg
§102
37.3%
-2.7% vs TC avg
§112
14.1%
-25.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 831 resolved cases

Office Action

§102 §Other
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 24 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Khanolkar et al. (US Pat. #9,035,422). Regarding claim 24, Khanolkar teaches an isolation device, comprising a transformer, the transformer including a lower metal coil, an upper metal coil, and a dielectric stack between the lower metal coil and the upper metal coil, wherein the upper metal coil laterally surrounds a filler metal layer and in electrical contact with the filler metal layer [fig. 4, lower metal coil 455, upper metal coil 444, dielectric stack 461 in between, upper metal coil 444 laterally surrounds filler metal layer 446 and is in electrical contact with 446]. Response to Arguments Applicant’s arguments, filed 4 February 2026, with respect to claims 1-5, 9, 10 and 21-23 have been fully considered and are persuasive. The rejection of claim 1 has been withdrawn. Allowable Subject Matter Claims 1-5, 9, 10 and 21-23 are allowed. Claims 25-28 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 1, the prior art fails to disclose or suggest the device as claimed. Specifically, the prior art fails to teach a filler metal layer over the dielectric stack, in electrical contact with the upper isolation element and a lower bond pad in electrical contact with the lower isolation element, wherein a portion of the lower bond pad is not covered by the dielectric stack. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOHN M PARKER whose telephone number is (571)272-8794. The examiner can normally be reached M-F 7:30am - 3:30pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Zandra Smith can be reached at 571-272-2429. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /JOHN M PARKER/Examiner, Art Unit 2899
Read full office action

Prosecution Timeline

Dec 29, 2022
Application Filed
Nov 01, 2025
Non-Final Rejection — §102, §Other
Feb 04, 2026
Response Filed
Feb 19, 2026
Final Rejection — §102, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12581943
THREE-DIMENSIONAL (3D) METAL-INSULATOR-METAL CAPACITOR (MIMCAP) INCLUDING STACKED VERTICAL METAL STUDS FOR INCREASED CAPACITANCE DENSITY AND RELATED FABRICATION METHODS
2y 5m to grant Granted Mar 17, 2026
Patent 12568837
SEMICONDUCTOR CHIP, SEMICONDUCTOR PACKAGE INCLUDING THE SAME, AND METHOD OF FABRICATING THE SAME
2y 5m to grant Granted Mar 03, 2026
Patent 12564043
MANUFACTURING METHOD FOR SEMICONDUCTOR DEVICE
2y 5m to grant Granted Feb 24, 2026
Patent 12550721
INTER-WIRE CAVITY FOR LOW CAPACITANCE
2y 5m to grant Granted Feb 10, 2026
Patent 12543556
SEMICONDUCTOR DEVICES AND METHODS OF FORMING THE SAME
2y 5m to grant Granted Feb 03, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
92%
Grant Probability
93%
With Interview (+0.9%)
2y 4m
Median Time to Grant
Moderate
PTA Risk
Based on 831 resolved cases by this examiner. Grant probability derived from career allow rate.

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