Prosecution Insights
Last updated: April 19, 2026
Application No. 18/135,551

Electrically Functional Circuit Board Core Material

Final Rejection §102§103
Filed
Apr 17, 2023
Examiner
TSO, STANLEY
Art Unit
2847
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Kemet Electronics Corporation
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
373 granted / 488 resolved
+8.4% vs TC avg
Strong +34% interview lift
Without
With
+34.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
32 currently pending
Career history
520
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
48.1%
+8.1% vs TC avg
§102
26.6%
-13.4% vs TC avg
§112
18.9%
-21.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 488 resolved cases

Office Action

§102 §103
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 . Response to Amendment The amendment of claim 60 traverses the claim objection which is hereby withdrawn. 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 59-65, 71, 74, 79, 82, 85 and 87 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by “Park” (US 10,863,627). Regarding claim 59, Park anticipates 59. A method of making a circuit board core material by: providing a laminate comprising a resin or resin-glass prepreg and at least one clad layer directly one side of said prepreg (Fig. 3, col. 4, lines 32-50, col. 6, lines 18-22; the core structure 110 is provided as a laminate comprising the insulating layers 111a-c made of a thermosetting resin such as an epoxy resin, a thermoplastic resin such as a polyimide resin, or a material including a glass fiber (glass cloth, glass fabric), the first wiring layer 112A, which includes the metal layer 115a and the first pattern layer 112a, is a first clad layer directly on a first side of said prepreg layer); forming a pocket in said prepreg (Fig. 3, col. 4, lines 32-50; the prepreg layer is formed and comprises a pocket); inserting an electronic component in said pocket of said prepreg wherein said electronic component comprises a first external termination and a second external termination (Fig. 3, col. 4, lines 32-50; the electronic component 120A is inserted in the pocket of the prepreg, and comprises the connection electrode 122a which is a first external termination, and the connection electrode 123a which is a second external termination); curing said prepreg to form prepreg with said electronic component in said prepreg (Fig. 3, col. 4, lines 32-50, col. 11, lines 1-28; the thermosetting resin is cured to form the prepreg with the electronic component 120A in the prepreg); forming a first electrical connection by laminating said first external termination to said first clad layer; and forming a second electrical connection to said second external termination (Fig. 3, col. 4, lines 32-50; the connection electrode 122a which is a first external termination is laminated to and in electrical contact with the first wiring layer 112A, and the connection electrode 123a which is a second external termination is laminated to and in electrical contact with the via 113b which is a conductor). Regarding claim 60, Park anticipates 60. The method of making a circuit board of claim 59 wherein said laminate further comprises a second clad layer and said forming said second electrical connection includes laminating said second external termination to said second clad layer (Fig. 3, col. 4, lines 32-50; the second wiring layer 112B, which includes the metal layer 115b and the second pattern layer 112b, is a second clad layer on a second side opposite said first side and the connection electrode 123a is laminated to the second wiring layer 112B). Regarding claim 61, Park anticipates 61. The method of making a circuit board of claim 59 further laminating at least one printed circuit board to said circuit board core material (Fig. 3, col. 4, lines 32-50, col. 5, lines 30-33; the first and second wiring layers 112A and 112B including at least portions of the first and second metal layers 115a and 115b are printed circuit boards). Regarding claim 62, Park anticipates 62. The method of making a circuit board of claim 61 further comprising forming at least one via in said printed circuit board (Fig. 3, col. 5, lines 32-50; the via 113a is a via formed in the printed circuit board). Regarding claim 63, Park anticipates 63. The method of making a circuit board of claim 59 further comprising at least one electronic component on said circuit board (Fig. 4, col. 10, line 25; the second electronic component 160 is on the circuit board). Regarding claim 64, Park anticipates 64. The method of making a circuit board of claim 63 wherein said electronic component is selected from the group consisting of capacitor, resistor, silicon die, diode, inductive material and magnetic device (Fig. 3, col. 4, lines 32-50; the electronic component 120A is a ceramic capacitor). Regarding claim 65, Park anticipates 65. The method of making a circuit board of claim 64 wherein said capacitor is selected from a foil capacitor, a pressed powder capacitor and a ceramic capacitor (Fig. 3, col. 4, lines 32-50; the electronic component 120A is a ceramic capacitor). Regarding claim 71, Park anticipates 71. The method of making a circuit board of claim 59 wherein said first external termination is a counter electrode (Fig. 3, col. 4, lines 32-50; the connection electrode 122a is a counter electrode). Regarding claim 74, Park anticipates 74. The method of making a circuit board of claim 59 wherein said first clad layer comprises copper (Fig. 3, col. 8, lines 66-67; the first wiring layer 112A includes the metal layer 115a which is copper). Regarding claim 79, Park anticipates 79. The method of making a circuit board of claim 59 further comprising a via pass through section (Fig. 3, col. 5, lines 32-50; the via 113a is a via pass through section). Regarding claim 82, Park anticipates 82. The method of making a circuit board of claim 59 comprising multiple electronic components (Fig. 4, col. 10, line 25; the second electronic component 160 is on the circuit board). Regarding claim 85, Park anticipates 85. The method of making a circuit board of claim 59 further comprising forming a prepreg layer laminated on opposite side of electronic component from first clad layer (Fig. 3, col. 9, line 41; the passivation layer 140 is a prepreg layer laminated on opposite side of electronic component 120a from the metal layer 115a). Regarding claim 87, Park anticipates 87. The method of making a circuit board of claim 59 wherein said circuit board core material is flexible (Fig. 3, col. 9, line 41; the circuit board core material is flexible). Claim Rejections - 35 USC § 103 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 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 66-70 are rejected under 35 U.S.C. 103 as being unpatentable over Park in view of “Takahashi” (US 2019/0392997). Regarding claim 66, Park discloses the claimed invention as applied to claim 64, above. Park does not disclose the limitations of claim 66. Takahashi discloses 66. The method of making a circuit board of claim 64 wherein said capacitor comprises a porous valve metal layer (Figs. 1-2, [0019]; the capacitor comprises a porous valve metal layer foil made from tantalum, aluminum or niobium). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Takahashi’s capacitor in order to suppress an increase in ESR and an increase in leakage current as suggested by Takahashi at Abstract. Regarding claim 67, Park in view of Takahashi discloses the claimed invention as applied to claim 66, above. Park does not disclose the limitations of claim 67. Takahashi discloses 67. The method of making a circuit board of claim 66 wherein said capacitor comprises a dielectric on said porous valve metal layer (Figs. 1-2, [0019]; the capacitor comprises a porous valve metal layer foil made from tantalum, aluminum or niobium). Regarding claim 68, Park in view of Takahashi discloses the claimed invention as applied to claim 66, above. Park does not disclose the limitations of claim 68. Takahashi discloses 68. The method of making a circuit board of claim 66 wherein said valve metal is selected from the group consisting of aluminum, tantalum, niobium and NbO (Figs. 1-2, [0019]; the capacitor comprises a porous valve metal layer foil made from tantalum, aluminum or niobium). Regarding claim 69, Park in view of Takahashi discloses the claimed invention as applied to claim 66, above. Park does not disclose the limitations of claim 69. Takahashi discloses 69. The method of making a circuit board of claim 66 wherein said porous valve metal layer is a foil (Figs. 1-2, [0019]; the capacitor comprises a porous valve metal layer foil made from tantalum, aluminum or niobium). Regarding claim 70, Park in view of Takahashi discloses the claimed invention as applied to claim 66, above. Park does not disclose the limitations of claim 70. Takahashi discloses 70. The method of making a circuit board of claim 66 wherein said capacitor comprises a capacitor core (Fig. 3, col. 4, lines 32-50; the electronic component 120A is a ceramic capacitor comprising a capacitor core). Claims 72-73 are rejected under 35 U.S.C. 103 as being unpatentable over Park in view of “Nishino” (US 4,737,889). Regarding claim 72, Park discloses the claimed invention as applied to claim 71, above. Park does not disclose the limitations of claim 72. Nishino discloses 72. The method of making a circuit board of claim 71 further comprising a conductive paint on said counter electrode (Fig. 1, col. 7, lines 45-62; the conductive paint, which has carbon and a resin as a binding medium is on the electrode). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Nishino’s conductive paint in order to make the conductive layer and the conditions of electrolyte, casing, etc., about the same capacitor value as that of the example, while the impedances of the present embodiment show larger values in comparison, because the metal conductive layer has stronger bonding to the polarizable electrode body and because of having difference of resistance values of the conductive body per se, as suggested by Nishino at col. 7, lines 45-62. Regarding claim 73, Park in view of Nishino discloses the claimed invention as applied to claim 72, above. Park does not disclose the limitations of claim 73. Nishino discloses 73. The method of making a circuit board of claim 72 wherein said conductive paint comprises at least one of a carbon filled resin or a metal filled resin (Fig. 1, col. 7, lines 45-62; the conductive paint, which has carbon and a resin as a binding medium is on the electrode). Claims 75-78 are rejected under 35 U.S.C. 103 as being unpatentable over Park in view of “Salcedo” (US 2006/0151836). Regarding claim 75, Park discloses the claimed invention as applied to claim 59, above. Park does not disclose the limitations of claim 75. Salcedo discloses 75. The method of making a circuit board of claim 59 further comprising a cathode isolation region (claim 14, the electrostatic discharge (ESD) device comprises a cathode comprising a cathode isolation region). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Salcedo’s isolation region in order to provide for an electrostatic discharge protection device for applications with input/output bipolar voltage higher than the core circuit power supply, as suggested by Salcedo at Abstract. Regarding claim 76, Park in view of Salcedo discloses the claimed invention as applied to claim 75, above. Park does not disclose the limitations of claim 76. Salcedo discloses 76. The method of making a circuit board of claim 75 further wherein said cathode isolation region comprises an isolation material (claim 14, the electrostatic discharge (ESD) device comprises a cathode comprising a cathode isolation region having an isolation material of a length of L1). Regarding claim 77, Park discloses the claimed invention as applied to claim 59, above. Park does not disclose the limitations of claim 77. Salcedo discloses 77. The method of making a circuit board of claim 59 further comprising an anode isolation region (claim 17, the electrostatic discharge (ESD) device comprises an anode comprising an anode isolation region). Regarding claim 78, Park in view of Salcedo discloses the claimed invention as applied to claim 77, above. Park does not disclose the limitations of claim 78. Salcedo discloses 78. The method of making a circuit board of claim 77 further wherein said anode isolation region comprises an isolation material (claim 17, the electrostatic discharge (ESD) device comprises an anode comprising an anode isolation region having an isolation material of a length of L2). Claims 80-81 are rejected under 35 U.S.C. 103 as being unpatentable over Park in view of “Hahn” (US 2018/0211790). Regarding claim 80, Park discloses the claimed invention as applied to claim 59, above. Park does not disclose the limitations of claim 80. Hahn discloses 80. The method of making a circuit board of claim 59 further comprising a conductive node (Figs. 2-3, [0021]; the conductive node, 28, is in electrical contact with the anode lead, 14). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Hahn’s anode conductive node in order to provide a preferred conductive path due to a resistance which is lower than the resistance of the current path through the dielectric 16, as suggested by Hahn at [0021]. Regarding claim 81, Park in view of Hahn discloses the claimed invention as applied to claim 80, above. Park does not disclose the limitations of claim 81. Hahn discloses 81. The method of making a circuit board of claim 80 wherein said conductive node is an anode conductive node (Figs. 2-3, [0021]; the conductive node, 28, is in electrical contact with the anode lead, 14). Claims 83-84 are rejected under 35 U.S.C. 103 as being unpatentable over Park in view of “Naito” (US 2017/0169957). Regarding claim 83, Park discloses the claimed invention as applied to claim 59, above. Park does not disclose the limitations of claim 83. Naito discloses 83. The method of making a circuit board of claim 59 further comprising forming at least one clad bonding layer (Figs. 3-4, [0102]; the conductive adhesive layer 410 is between the adjacent external terminal 400 and the counter electrode 20). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Naito’s bonding layer in order to obtain a high capacitance even with a small number of times of polymerization treatments, as suggested by Naito at Abstract. Regarding claim 84, Park discloses the claimed invention as applied to claim 59, above. Park does not disclose the limitations of claim 84. Naito discloses 84. The method of making a circuit board of claim 59 further comprising forming at least one electrical connection layer between adjacent clad layer (Figs. 3-4, [0102]; the conductive adhesive layer 410 is between the adjacent external terminal 400 and the counter electrode 20). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Naito’s bonding layer in order to obtain a high capacitance even with a small number of times of polymerization treatments, as suggested by Naito at Abstract. Claim 86 is rejected under 35 U.S.C. 103 as being unpatentable over Park in view of “Kim” (US 9,664,842). Regarding claim 86, Park discloses the claimed invention as applied to claim 59, above. Park does not disclose the limitations of claim 86. Kim discloses 86. The method of making a circuit board of claim 59 further comprising etching said first clad layer (Fig. 11, col. 10, lines 25-32; the clad layer 130a is etched). It would have been obvious to a person having ordinary skill in the art, before the effective filing date of the claimed invention, to have constructed Park’s structure with Kim’s etching in order to form a circuit portion based on a designed pattern form, as suggested by Kim at col. 10, lines 25-32. 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 STANLEY TSO whose telephone number is (571)270-0723. The examiner can normally be reached Tu-Thurs 6am-6pm, alt M 6am-2pm. 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, Tim 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. /STANLEY TSO/Primary Examiner, Art Unit 2847
Read full office action

Prosecution Timeline

Apr 17, 2023
Application Filed
Sep 22, 2025
Examiner Interview (Telephonic)
Sep 22, 2025
Examiner Interview Summary
Oct 25, 2025
Non-Final Rejection — §102, §103
Feb 18, 2026
Response Filed
Mar 18, 2026
Final Rejection — §102, §103
Apr 16, 2026
Applicant Interview (Telephonic)
Apr 16, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12597536
SUBSEA CABLE SYSTEM AND METHOD
2y 5m to grant Granted Apr 07, 2026
Patent 12598694
CIRCUIT BOARD AND ELECTRONIC ASSEMBLY
2y 5m to grant Granted Apr 07, 2026
Patent 12592077
SYSTEMS AND METHODS FOR OCCUPANCY PREDICTION
2y 5m to grant Granted Mar 31, 2026
Patent 12588351
ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12582015
TERMINAL STRUCTURE AND ELECTRONIC COMPONENT
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
76%
Grant Probability
99%
With Interview (+34.4%)
2y 5m
Median Time to Grant
Moderate
PTA Risk
Based on 488 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month