Prosecution Insights
Last updated: April 19, 2026
Application No. 18/688,801

COPPER/CERAMIC JOINED BODY AND INSULATED CIRCUIT BOARD

Non-Final OA §102
Filed
Mar 04, 2024
Examiner
NORRIS, JEREMY C
Art Unit
2847
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Mitsubishi Materials Corporation
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
91%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
840 granted / 973 resolved
+18.3% vs TC avg
Minimal +4% lift
Without
With
+4.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
23 currently pending
Career history
996
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
40.7%
+0.7% vs TC avg
§102
53.1%
+13.1% vs TC avg
§112
4.6%
-35.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 973 resolved cases

Office Action

§102
DETAILED ACTION 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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. 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) 1-16 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 2023/0034784 A1 (Terasaki). Terasaki discloses, referring primarily to figures 1 and 2, a copper/ceramic bonded body comprising: a copper member (12, 13) consisting of copper or a copper alloy ([0038]); and a ceramic member (11, [0038]), wherein the copper member is bonded to the ceramic member, an active metal compound layer (15)consisting of an active metal compound ([0053]) is formed on a side of the ceramic member at a bonded interface between the ceramic member and the copper member, and microcracks that extend from the bonded interface toward an inner side of the ceramic member are present in the ceramic member, and at least a part of the microcracks are filled with the active metal compound [claim 1], wherein in the microcrack filled with the active metal compound, a maximum depth H from the bonded interface is set to be in a range of 0.3 µm or more and 3.0 µm or less ([0062]) [claim 2], wherein a width W of the microcrack filled with the active metal compound is 0.3 µm or less ([0062]) [claim 3], wherein a thickness tl of the active metal compound layer is set to be in a range of 40 nm or more and 600 nm or less ([0062]) [claim 4], wherein at the bonded interface between the ceramic member and the copper member, an Ag-Cu alloy layer is formed on a side of the copper member, and a thickness t2 of the Ag-Cu alloy layer is set to be in a range of 1.5 µm or more and 30 µm or less ([0041]) [claim 5]. Terasaki, an insulated circuit board comprising: a copper sheet (12, 13) consisting of copper or a copper alloy; and a ceramic substrate (11), wherein the copper sheet is bonded to a surface of the ceramic substrate, an active metal compound layer (15) consisting of an active metal compound is formed on a side of the ceramic substrate at a bonded interface between the ceramic substrate and the copper sheet, and microcracks that extend from the bonded interface toward an inner side of the ceramic substrate are present in the ceramic substrate, where at least a part of the microcracks are filled with the active metal compound [claim 6], wherein in the microcrack filled with the active metal compound, a maximum depth H from the bonded interface, is set to be in a range of 0.3 µm or more and 3.0 µm or less ([0062]) [claim 7], wherein a width W of the microcrack filled with the active metal compound is 0.3 µm or less ([0062]) [claim 8], wherein a thickness tl of the active metal compound layer is set to be in a range of 40 nm or more and 600 nm or less ([0062]) [claim 9], wherein at the bonded interface between the ceramic substrate and the copper sheet, an Ag- Cu alloy layer is formed on a side of the copper sheet, and a thickness t2 of the Ag-Cu alloy layer is set to be in a range of 1.5 µm or more and 30 µm or less ([0041]) [claim 10], wherein a width W of the microcrack filled with the active metal compound is 0.3 m or less ([0062]) [claim 11], wherein a thickness tl of the active metal compound layer is set to be in a range of 40 nm or more and 600 nm or less ([0062]) [claim 12], wherein at the bonded interface between the ceramic member and the copper member, an Ag-Cu alloy layer is formed on a side of the copper member, and a thickness t2 of the Ag-Cu alloy layer is set to be in a range of 1.5 µm or more and 30 µm or less ([0041]) [claim 13], wherein a width W of the microcrack filled with the active metal compound is 0.3 µm or less ([0062]) [claim 14], wherein a thickness tl of the active metal compound layer is set to be in a range of 40 nm or more and 600 nm or less ([0062]) [claim 15], wherein at the bonded interface between the ceramic substrate and the copper sheet, an Ag- Cu alloy layer is formed on a side of the copper sheet, and a thickness t2 of the Ag-Cu alloy layer is set to be in a range of 1.5 µm or more and 30 µm or less ([0041]) [claim 16]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JEREMY C NORRIS whose telephone number is (571)272-1932. The examiner can normally be reached 7:15-15:15 M-F. 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, Timothy Thompson can be reached at (571)272-2342. 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. JEREMY C. NORRIS Examiner Art Unit 2847 /JEREMY C NORRIS/Primary Examiner, Art Unit 2847
Read full office action

Prosecution Timeline

Mar 04, 2024
Application Filed
Jan 08, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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LAMINATE FOR WIRING BOARD
2y 5m to grant Granted Apr 14, 2026
Patent 12604411
FLEXIBLE PRINTED CIRCUIT BOARD, IN PARTICULAR FOR CONNECTING ELECTRICAL AND/OR ELECTRONIC COMPONENTS
2y 5m to grant Granted Apr 14, 2026
Patent 12598703
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2y 5m to grant Granted Apr 07, 2026
Patent 12598698
WIRING CIRCUIT BOARD
2y 5m to grant Granted Apr 07, 2026
Patent 12598693
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2y 5m to grant Granted Apr 07, 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
86%
Grant Probability
91%
With Interview (+4.4%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 973 resolved cases by this examiner. Grant probability derived from career allow rate.

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