Prosecution Insights
Last updated: April 19, 2026
Application No. 18/240,574

CIRCUIT BOARD

Final Rejection §103
Filed
Aug 31, 2023
Examiner
MAIGA, SIDI MOHAMED
Art Unit
2847
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Samsung Electro-Mechanics Co., Ltd.
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2y 8m
To Grant
85%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
22 granted / 29 resolved
+7.9% vs TC avg
Moderate +9% lift
Without
With
+9.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
32 currently pending
Career history
61
Total Applications
across all art units

Statute-Specific Performance

§103
64.2%
+24.2% vs TC avg
§102
28.5%
-11.5% vs TC avg
§112
6.6%
-33.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 29 resolved cases

Office Action

§103
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 . Response to Arguments Applicant’s arguments with respect to claim(s) 1, 19 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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. before the effective filing date of the claimed invention. Claim(s) 1, 5 – 11, 13 – 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Asahi et al. (US 20030090883 A1, “Asahi”) in view of Chen et al. (US 20120168316 A1, “Chen”). Regarding claim 1, Asahi discloses (Fig. 6) a circuit board comprising: a first glass layer {(601) para [0043] & [0074}, the first glass layer is an inorganic layer including glass (para [0043]); a first wiring layer (302) embedded in an upper portion of the first glass layer, the first wiring layer includes a first seed metal layer disposed on a lower surface and side surfaces of the first wiring layer; and a second wiring layer (302) embedded in a lower portion of the first glass layer, the second wiring layer includes a second seed metal layer disposed on an upper surface and side surfaces of the second wiring layer, wherein at least one of the first and second wiring layers includes a plurality of embedded patterns having different thicknesses (see annotated figure below). PNG media_image1.png 673 1374 media_image1.png Greyscale Asahi is silent on the first wiring layer includes a first seed metal layer disposed on a lower surface and side surfaces of the first wiring layer and the second wiring layer includes a second seed metal layer disposed on an upper surface and side surfaces of the second wiring layer However, Chen discloses (Fig. 1D) the first wiring layer includes a first seed metal layer disposed on a lower surface and side surfaces of the first wiring layer and the second wiring layer includes a second seed metal layer disposed on an upper surface and side surfaces of the second wiring layer (See annotated figure below) PNG media_image2.png 369 807 media_image2.png Greyscale Asahi and Chen are both considered to be analogous to the claimed invention because they are in the same field of circuit board. Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi to incorporate the teachings of Chen and provide the first wiring layer includes a first seed metal layer disposed on a lower surface and side surfaces of the first wiring layer and the second wiring layer includes a second seed metal layer disposed on an upper surface and side surfaces of the second wiring layer (See annotated figure above). Doing so would enable complex, high0-density circuit designs and enhance electrical connectivity (para [0010], [0011] and [0057]) Regarding claim 5, Asahi in view of Chen discloses the circuit board of claim 1, wherein Asahi further discloses an upper surface and a lower surface of the first glass layer are substantially coplanar with an upper surface of the first wiring layer and a lower surface of the second wiring layer, respectively (See annotated figure above). Regarding claim 6, Asahi in view of Chen discloses the circuit board of claim 1, Asahi further discloses comprising a first via layer (303) penetrating the first glass layer (601) and connected to the first and second wiring layers (302) (See Fig. 6). Regarding claim 7, Asahi in view of Chen discloses the circuit board of claim 6, Asahi further discloses comprising: a second glass layer (para [0063] and [0074]) disposed on an upper surface of the first glass layer (601); a third wiring layer embedded in an upper portion of the second glass layer (See annotated figure below); and a second via layer penetrating the second glass layer and connected to the first and third wiring layers, wherein the first glass layer is thicker than the second glass layer (See annotated figure below). PNG media_image3.png 636 1511 media_image3.png Greyscale Regarding claim 8, Asahi in view of Chen discloses the circuit board of claim 7, wherein Asahi further discloses an upper surface of the second glass layer is substantially coplanar with an upper surface of the third wiring layer (See annotated figure above). Regarding claim 9, Asahi in view of Chen discloses the circuit board of claim 7, wherein Asahi further discloses the third wiring layer includes a plurality of embedded patterns having different thicknesses (See annotated figure below). PNG media_image4.png 608 1312 media_image4.png Greyscale Regarding claim 10, Asahi in view of Chen discloses the circuit board of claim 9, wherein Asahi further discloses the plurality of embedded patterns of the third wiring layer include a first trace having a relatively long length and a second trace having a relatively short length, wherein the first trace is thicker than the second trace (See annotated figure above). Regarding claim 11, Asahi in view of Chen discloses the circuit board of claim 7, wherein Asahi further discloses the second glass layer is in direct contact with the first glass layer, and the second via layer is in direct contact with the first wiring layer (See Fig. 6). Regarding claim 13, Asahi in view of Chen discloses the circuit board of claim 7, Asahi further discloses comprising: a third insulating layer disposed on a lower surface of the first glass layer; a fourth wiring layer embedded in a lower portion of the third insulating layer; and a third via layer penetrating the third insulating layer and connected to the second and fourth wiring layers, wherein the first glass layer is thicker than the third insulating layer (See annotated figure below). PNG media_image5.png 505 1038 media_image5.png Greyscale Regarding claim 14, Asahi in view of Chen discloses the circuit board of claim 13, wherein Asahi further discloses a lower surface of the third insulating layer is substantially coplanar with a lower surface of the fourth wiring layer(See Fig. 6) . Regarding claim 15, Asahi in view of Chen discloses the circuit board of claim 13, Asahi further discloses wherein the fourth wiring layer includes a plurality of embedded patterns having different thicknesses (See annotated figure below). PNG media_image6.png 501 1038 media_image6.png Greyscale Regarding claim 16, Asahi in view of Chen discloses the circuit board of claim 13, Asahi further discloses wherein the third insulating layer includes an organic insulating layer (epoxy resin is considered to be an organic material see para [0043] and [0063]). Claim(s) 2 – 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Asahi et al. (US 20030090883 A1, “Asahi”) in view of Chen et al. (US 20120168316 A1, “Chen”) as applied to claim 1 above, and further in view of KASHIWAKURA et al. (US 20180235076 A1, “KASHIWAKURA”). Regarding claim 2, Asahi in view of Chen discloses the circuit board of claim 1, Asahi in view of Chen is silent about wherein the plurality of embedded patterns of the at least one of the first and second wiring layers include a plurality of signal patterns having different thickness. However, KASHIWAKURA discloses (Fig. 1) wherein the plurality of embedded patterns of the at least one of the first and second wiring layers include a plurality of signal patterns {para [0006] (2, 6)} having different thickness. Asahi in view of Chen and KASHIWAKURA are both considered to be analogous to the claimed invention because they are in the same field of circuit board. Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi in view of Chen to incorporate the teachings of KASHIWAKURA and provide the plurality of embedded patterns of the at least one of the first and second wiring layers include a plurality of signal patterns {para [0006] (2, 6)} having different thickness. Doing so would minimize electromagnetic interference and enabling better performance. Regarding claim 3, Asahi in view of Chen and KASHIWAKURA discloses the circuit board of claim 2, wherein KASHIWAKURA further discloses the plurality of embedded patterns of the at least one of the first and second wiring layers further include at least one of a ground pattern (41, 42, 43) and a power pattern (5), wherein the at least one of the ground pattern and the power pattern is wider than a width of each of the plurality of signal patterns (6) (para [0006] & [0037]). Claim(s) 4, 17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Asahi et al. (US 20030090883 A1, “Asahi”) in view of Chen et al. (US 20120168316 A1, “Chen”) as applied to claim 1, 13 above, and further in view of Akel et al. (US 20070114073 A1, “Akel”). Regarding claim 4, Asahi in view of Chen discloses the circuit board of claim 1, Asahi in view of Chen fails to disclose wherein the first glass layer includes plate glass. However, Akel discloses (Fig. 2A & 2B) wherein the first glass layer (11) includes plate glass (See claim 3). Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi in view of Chen to incorporate the teachings of Akel and provide wherein the first glass layer (11) includes plate glass (See claim 3). Doing so would provide a highly effective electrical insulator that can withstands repeated touch interaction without degrading. Regarding claim 17, Asahi in view of Chen discloses the circuit board of claim 13, Asahi in view of Chen fails to disclose wherein the third insulating layer includes plate glass. However, Akel discloses (Fig. 2A & 2B) wherein the third insulating layer (11) includes plate glass (See claim 3). Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi in view of Chen to incorporate the teachings of Akel and provide wherein the third insulating layer (11) includes plate glass (See claim 3). Doing so would provide a highly effective electrical insulator that can withstands repeated touch interaction without degrading. Claim(s) 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Asahi et al. (US 20030090883 A1, “Asahi”) in view of Chen et al. (US 20120168316 A1, “Chen”) as applied to claim 7 above, and further in view of Chou. (US 20220230950 A1, “Chou”). Regarding claim 12, Asahi in view of Chen discloses the circuit board of claim 7, Asahi in view of Chen fails to disclose further comprising an adhesive layer disposed between the first and second glass layers, wherein the second via layer further penetrates the adhesive layer, and the adhesive layer covers an exposed upper surface of the first wiring layer. However, Chou discloses (Fig. 1A & 1B) further comprising an adhesive layer (11) disposed between the first and second glass layers, wherein the second via layer further penetrates the adhesive layer, and the adhesive layer covers an exposed upper surface of the first wiring layer (para [0024]). Asahi in view of Chen and Chou are both considered to be analogous to the claimed invention because they are in the same field of circuit board. Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi in view of Chen to incorporate the teachings of Chou and provide an adhesive layer (11) disposed between the first and second glass layers, wherein the second via layer further penetrates the adhesive layer, and the adhesive layer covers an exposed upper surface of the first wiring layer (para [0024]). Doing so would enable precise via formation without residue on the wiring, improving electrical performance and reliability (para [0055]). Claim(s) 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Asahi et al. (US 20030090883 A1, “Asahi”) in view of Chen et al. (US 20120168316 A1, “Chen”) as applied to claim 13 above, and further in view of Arisaka et al. (US 20160172287 A1, “Arisaka”). Regarding claim 18, Asahi in view of Chen discloses the circuit board of claim 13, further comprising: a first resist layer disposed on an upper surface of the second glass layer and having a first opening exposing at least a portion of the third wiring layer; a second resist layer disposed on a lower surface of the third insulating layer and having a second opening exposing at least a portion of the fourth wiring layer; a semiconductor chip (611) disposed on the first opening of the first resist layer and connected to the exposed at least a portion of the third wiring layer through a connecting member (307); and an electrical connection metal disposed (307) on the second opening of the second resist layer and connected to the at least a portion exposed of the fourth wiring layer. Asahi in view of Chen fails to disclose a first and second resist layers on an upper surface of the second glass layer and on a lower surface of the third insulating layer. However, Arisaka discloses (Fig. 3) a first resist layer {para [0079], (60)} disposed on an upper surface of the second glass layer and having a first opening exposing (60X, 61X, 62X) at least a portion of the third wiring layer; a second resist layer (13) disposed on a lower surface of the third insulating layer and having a second opening (13X) exposing at least a portion of the fourth wiring layer Asahi in view of Chen and Arisaka are both considered to be analogous to the claimed invention because they are in the same field of circuit board. Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi in view of Chen to incorporate the teachings of Arisaka and provide a first resist layer {para [0079], (60)} disposed on an upper surface of the second glass layer and having a first opening exposing (60X, 61X, 62X) at least a portion of the third wiring layer; a second resist layer (13) disposed on a lower surface of the third insulating layer and having a second opening (13X) exposing at least a portion of the fourth wiring layer. Doing so would ensure reliability in the upper side by managing stress and underfill, and ensures functionality on the lower side by providing mechanical and electrical interfaces. Claim(s) 19 - 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Asahi et al. (US 20030090883 A1, “Asahi”) in view of Chen et al. (US 20120168316 A1, “Chen”) and further in view of Sakamoto et al. (US 20160066422 A1, “Sakamoto”) Regarding claim 19, Asahi discloses (Fig. 6) a circuit board comprising: a first glass layer {(601) para [0043] & [0074} having a first pattern groove and a second pattern groove disposed in upper and lower surfaces, respectively, and a first through-hole disposed between the first and second pattern grooves and connecting the first and second pattern grooves; a first metal layer (303+302) disposed in the first and second pattern grooves and the first through-hole; a second glass layer (para [0063] and [0074]) disposed on an upper surface of the first glass layer, and having a third pattern groove in an upper surface and a second through-hole disposed below the third pattern groove; and a second metal layer disposed in the third pattern groove and the second through-hole, wherein one of the first and second pattern grooves includes a plurality of grooves having different depths (See annotated figure below), wherein each of the first glass layer and the second glass layer is an inorganic layer including glass (para [0043]), and wherein each of the first metal layer and the second metal layer includes a seed metal layer disposed on wall surfaces and bottom surfaces of each of the first pattern grooves, the second pattern grooves, and the third pattern groove and on wall surfaces of each of the first through-hole and the second through-hole. PNG media_image7.png 673 1504 media_image7.png Greyscale Asahi is silent on wherein each of the first metal layer and the second metal layer includes a seed metal layer disposed on wall surfaces and bottom surfaces of each of the first pattern grooves, the second pattern grooves, and the third pattern groove and on wall surfaces of each of the first through-hole and the second through-hole. However, Chen discloses (Fig. 1D) that the first metal layer (108) includes a seed metal layer (114) disposed on wall surfaces and bottom surfaces of each of the first pattern grooves, the second pattern grooves and on wall surfaces of the first through-hole (See annotated figure below) PNG media_image8.png 369 906 media_image8.png Greyscale Asahi and Chen are both considered to be analogous to the claimed invention because they are in the same field of circuit board. Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi to incorporate the teachings of Chen and provide the first metal layer (108) includes a seed metal layer (114) disposed on wall surfaces and bottom surfaces of each of the first pattern grooves, the second pattern grooves and on wall surfaces of the first through-hole (See annotated figure above). Doing so would enable complex, high-density circuit designs and enhance electrical connectivity (para [0010], [0011] and [0057]) Asahi in view of Chen is silent on the second metal layer includes a seed metal layer disposed on wall surfaces and bottom surfaces of each of the third pattern groove However, Sakamoto discloses (Fig. 1, 6E) the second metal layer (207) includes a seed metal layer (203a) disposed on wall surfaces and bottom surfaces of each of the third pattern groove (See Fig. 6E) Asahi in view of Chen and Sakamoto are both considered to be analogous to the claimed invention because they are in the same field of circuit board. Therefore, it would have been obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Asahi in view of Chen to incorporate the teachings of Sakamoto and provide the second metal layer (207) includes a seed metal layer (203a)disposed on wall surfaces and bottom surfaces of each of the third pattern groove (See Fig. 6E). Doing so would provide a conductive foundation for electrolytic plating and enable high-density packaging (para [0047], [0057]) Regarding claim 20, Asahi in view of Chen and Sakamoto discloses the circuit board of claim 19, wherein Asahi further discloses another of the first and second pattern grooves include a plurality of grooves having different depths (See annotated figure above). 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 SIDI MOHAMED MAIGA whose telephone number is (703)756-1870. The examiner can normally be reached Monday - Friday 8 am 5 pm. 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 on 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. /SIDI M MAIGA/ Examiner, Art Unit 2847 /STANLEY TSO/Primary Examiner, Art Unit 2847
Read full office action

Prosecution Timeline

Aug 31, 2023
Application Filed
Jun 28, 2025
Non-Final Rejection — §103
Oct 02, 2025
Response Filed
Jan 09, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12568584
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Patent 12563665
INSULATING CIRCUIT BOARD AND SEMICONDUCTOR DEVICE IN WHICH SAME IS USED
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2y 5m to grant Granted Feb 10, 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
76%
Grant Probability
85%
With Interview (+9.4%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 29 resolved cases by this examiner. Grant probability derived from career allow rate.

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