Prosecution Insights
Last updated: July 17, 2026
Application No. 18/368,152

ELECTRO-OPTIC BRIDGE CHIPS FOR CHIP-TO-CHIP COMMUNICATION

Non-Final OA §102
Filed
Sep 14, 2023
Examiner
MENZ, LAURA MARY
Art Unit
2813
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Globalfoundries U.s. Inc.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
823 granted / 941 resolved
+19.5% vs TC avg
Moderate +8% lift
Without
With
+8.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
40 currently pending
Career history
973
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
42.3%
+2.3% vs TC avg
§102
28.0%
-12.0% vs TC avg
§112
2.5%
-37.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 941 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 . Election/Restrictions Applicant’s election without traverse of Species 2 in the reply filed on 1/20/26 is acknowledged. Claim Rejections - 35 USC § 102 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. Claim(s) 1, 4-8 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Ecton et al (US 2024/0176070). 1. A structure comprising: a package substrate (Fig. 2A (131) and [0082]); a first photonics chip (Fig. 2A (104-1) and [0085- PIC]) on the package substrate (Fig. 2A (131) and [0082]), the first photonics chip including an optical coupler (Fig.2A (160-1/106-3) and [0085]) and a bond pad (Fig.1A/2A (122) and [0079]); and an electro-optic bridge chip (Fig.2A/3D (128/103) and [0085]) on the package substrate (Fig. 2A (131) and [0082]), the electro-optic bridge chip (Fig.2A (128/103) and [0085]) including a waveguide core (Fig.2A/3D (103/160) and [0085]) and an electrical trace line (Fig.2A/3D (148-2) and [0085]), the electrical trace line (Fig.2A/3D (148-2) and [0085]) coupled to the bond pad (Fig.1A/2A/3D (122) and [0079]) of the first photonics chip (Fig. 2A (104-1) and [0085- PIC]), and the waveguide core (Fig.2A/3D (103/160) and [0085]) including a first portion that is coupled to the optical coupler (Fig.2A/3E (182-1) and [0085]) of the first photonics chip (Fig. 2A (104-1) and [0085- PIC]). 4. The structure of claim 1 wherein the electro-optic bridge chip (Fig.2A/3D (128/103) and [0085]) includes a dielectric layer (Fig.2A/3D (148-2/ 148-1- includes dielectric layers) and [0085]), and the waveguide core (Fig.2A/3D (103/160) and [0085]) is disposed in the dielectric layer (Fig.2A/3D (148-2/ 148-1- includes dielectric layers which 103 is disposed in between) and [0085]). 5. The structure of claim 4 wherein the package substrate (Fig. 2A (131) and [0082]) has a top surface (top), and the waveguide core (Fig.2A/3D (103/160) and [0085]) is disposed in the dielectric layer (Fig.2A/3D (148-2/ 148-1- includes dielectric layers) above the top surface of the package substrate (Fig. 2A (131) and [0082]). 6. The structure of claim 4 wherein the package substrate (Fig. 2A (131) and [0082]) has a top surface, and the dielectric layer (Fig.2A/3D (148-2/ 148-1- includes dielectric layers) has a top surface that is disposed above the top surface of the package substrate (Fig. 2A (131) and [0082]). 7. The structure of claim 4 wherein the package substrate (Fig. 2A (131) and [0082]) has a top surface, and the dielectric layer (Fig.2A/3D (148-1- includes dielectric layers) is disposed on the top surface of the package substrate (Fig. 2A (131) and [0082]). 8. The structure of claim 4 wherein the dielectric layer (Fig.2A/3D (148-2/ 148-1- includes dielectric layers) has a top surface, and the waveguide core (Fig.2A/3D (103/160) and [0085]) is disposed adjacent to the top surface of the dielectric layer (Fig.2A/3D (148-2/ 148-1- includes dielectric layers). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Ecton et al (US 20240178207); Li (US 20240176068, US 20240176069); Pietambaram et al (US 10892219) teach similar structures. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAURA M MENZ whose telephone number is (571)272-1697. The examiner can normally be reached Monday-Friday 7:00-3:30. 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, Steven Gauthier can be reached at 571-270-0373. 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. /LAURA M MENZ/Primary Examiner, Art Unit 2813 3/30/26
Read full office action

Prosecution Timeline

Sep 14, 2023
Application Filed
Apr 10, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

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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
88%
Grant Probability
96%
With Interview (+8.5%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 941 resolved cases by this examiner. Grant probability derived from career allowance rate.

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