Prosecution Insights
Last updated: July 17, 2026
Application No. 18/672,681

POWER MODULE AND VEHICLE-MOUNTED POWER CIRCUIT

Non-Final OA §102
Filed
May 23, 2024
Priority
Apr 18, 2022 — CN 202210406560.1 +1 more
Examiner
HENRY, CALEB E
Art Unit
Tech Center
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1082 granted / 1248 resolved
+26.7% vs TC avg
Moderate +6% lift
Without
With
+6.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
32 currently pending
Career history
1285
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
71.9%
+31.9% vs TC avg
§102
22.9%
-17.1% vs TC avg
§112
1.3%
-38.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1248 resolved cases

Office Action

§102
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 . Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-4 and 6-8 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Kim (8604624) PNG media_image1.png 684 449 media_image1.png Greyscale Regarding claim 1, Kim teaches a power module (please see figures above), comprising: a first metal-clad substrate (106); a chip (202) located on a side of the first metal-clad substrate; and first solder (208) located between the first metal-clad substrate and the chip, wherein: a first metal layer (104) is disposed on a surface of the first metal-clad substrate, wherein the surface faces the chip (please see figures above); the first metal layer comprises a groove (please see portion of 104 which is missing) that penetrates the first metal layer in a thickness direction (please see figures above), wherein the first metal layer further comprises a blocking part (fig. 8: 220); a first thickness of the first metal layer is less than a second thickness, the first thickness comprises a thickness of at least a part of an area in the blocking part, and the second thickness comprises a thickness of the first metal layer in an area other than the groove and the blocking part (please see figures above); and the blocking part is located between the chip and the groove adjacent to the blocking part (please see figures above), wherein the blocking part is configured to prevent the first solder from overflowing into the groove when the chip is welded to the first metal-clad substrate with the first solder (Kim teaches 220 prevents the spread of 208). Regarding claim 2, Kim teaches a power module according to claim 1, the blocking part comprising: at least one recess structure that is recessed towards a first direction, wherein the first direction is a direction in which the chip points to the first metal-clad substrate (please figures above). Regarding claim 3, Kim teaches a power module according to claim 2, the blocking part comprising: one recess structure, wherein the one recess structure extends along a second direction, and wherein the second direction is an extension direction of a side of the chip, and wherein the side of the chip is adjacent to the blocking part (please see figures above). Regarding claim 4, Kim teaches a power module according to claim 2, the blocking part comprising: a plurality of recess structures, wherein the plurality of recess structures in the blocking part are arranged in at least one row, wherein an arrangement direction of the plurality of recess structures is a second direction, and wherein the second direction is an extension direction of a side of the chip, and wherein the side of the chip is adjacent to the blocking part (please see figures above). Regarding claim 6, Kim teaches a power module according to claim 1, wherein the blocking part comprises at least one step-shaped structure, and wherein each step-shaped structure comprises at least one step (see fig. 6 which shows the groove having a step). Regarding claim 7, Kim teaches a power module according to claim 6, wherein the blocking part comprises one step-shaped structure, the at least one step-shaped structure extends along a second direction, and the second direction is an extension direction of a side of the chip, and wherein the side of the chip is adjacent to the blocking part (please see figures above). Regarding claim 8, Kim teaches a power module according to claim 6, the blocking part comprising: a plurality of step-shaped structures, wherein the plurality of step-shaped structures in the blocking part are arranged in at least one row, wherein an arrangement direction of the step-shaped structures is a second direction, and wherein the second direction is an extension direction of a side of the chip, and wherein the side of the chip is adjacent to the blocking part (please see figure above). Claim 1 is rejected under 35 U.S.C. 102(a)(2) as being anticipated by Darveaux (10410885) PNG media_image2.png 495 449 media_image2.png Greyscale Regarding claim 1, Darveaux teaches an power module (please see figures above), comprising: a first metal-clad substrate (900); a chip (335) located on a side of the first metal-clad substrate; and first solder (please see fig. 9B above) located between the first metal-clad substrate and the chip, wherein: a first metal layer (907) is disposed on a surface of the first metal-clad substrate, wherein the surface faces the chip (please see fig. 9B); the first metal layer comprises a groove (please see multiple groves in 907) that penetrates the first metal layer in a thickness direction (please see fig. 9B), wherein the first metal layer further comprises a blocking part (please see portions of 907 that prevent solder balls on 335 from overflow); a first thickness of the first metal layer is less than a second thickness, the first thickness comprises a thickness of at least a part of an area in the blocking part, and the second thickness comprises a thickness of the first metal layer in an area other than the groove and the blocking part (please see the multiple thickness seen in 907, comparing these thicknesses meeting this limitation); and the blocking part is located between the chip and the groove adjacent to the blocking part (please see fig. 9B), wherein the blocking part is configured to prevent the first solder from overflowing into the groove when the chip is welded to the first metal-clad substrate with the first solder (please see fig. 9B). Allowable Subject Matter Claim 5 is 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. Claim 9 is 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. Claims 10-18 allowed. The following is an examiner’s statement of reasons for allowance: prior art fails to anticipate and/or obviate all structural limitations mentioned in claim 10, such as a circuit board, wherein: the circuit board is electrically connected to the power module; and the vehicle-mounted power circuit is located in a vehicle-mounted charger or a vehicle-mounted inverter, and the vehicle-mounted power circuit is configured to provide a power conversion function for an electric vehicle. These limitations, in conjunction with others, teach a structure novel in the art. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CALEB E HENRY whose telephone number is (571)270-5370. The examiner can normally be reached Mon-Fri. 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, Eva Montalvo can be reached at (571) 270-3829. 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. /CALEB E HENRY/Primary Examiner, Art Unit 2818
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Prosecution Timeline

May 23, 2024
Application Filed
Jun 15, 2026
Non-Final Rejection mailed — §102 (current)

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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
87%
Grant Probability
93%
With Interview (+6.1%)
2y 3m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1248 resolved cases by this examiner. Grant probability derived from career allowance rate.

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