Prosecution Insights
Last updated: May 29, 2026
Application No. 18/262,422

SURFACE MODIFYING METHOD AND SURFACE MODIFYING APPARATUS

Non-Final OA §102§103
Filed
Jul 21, 2023
Priority
Jan 25, 2021 — JP 2021-009813 +1 more
Examiner
SELLS, JAMES D
Art Unit
1745
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Tokyo Electron Limited
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
721 granted / 887 resolved
+16.3% vs TC avg
Moderate +12% lift
Without
With
+11.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
12 currently pending
Career history
904
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
9.5%
-30.5% vs TC avg
§112
18.2%
-21.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 887 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 . Election/Restrictions Applicant’s election without traverse of claims 1-7 in the reply filed on 01/27/2026 is acknowledged. 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 and 7 are rejected under 35 U.S.C. 102(a)(1) as being clearly anticipated by Yamauchi et al (WO 2018/084285 – see US2023/0136771 for English version). Regarding claims 1 and 7, Yamauchi discloses a surface modification method (N2 RIE treatment, N2 radical treatment) in which a bonding surface of a substrate to be bonded to another substrate is modified by plasma of a processing gas that is nitrogen gas, the surface modification method including: an adjustment step of adjusting the water content in a processing container that can accommodate the substrate by supplying a humidified gas into the processing container (it is indicated in paragraphs [0077] and [0078] that a gas containing H2O is supplied into a chamber before the N2 RIE treatment or N2 radical treatment so that the RIE treatment or radical treatment is performed in a state where the gas containing H2O is abundant, and a sufficient amount of OH groups can be generated, and it is considered that the adjustment is performed so that a predetermined amount of H2O is contained in the chamber), and a modification step of modifying the bonding surface of the substrate by generating plasma of the processing gas in the processing container in a state where the water content in the processing container is adjusted (N2 RIE treatment, N2 radical treatment). Claim Rejections - 35 USC § 103 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. Claim(s) 2-6 are rejected under 35 U.S.C. 103 as being unpatentable over Yamauchi et al (WO 2018/084285) in view of Hiroyuki et al (JP 2004-193401). Regarding claim 2, In the invention disclosed in Yamauchi, an O2 RIE treatment is performed in the same chamber before the N2 RIE treatment or the N2 radical treatment, but a person skilled in the art could have performed, as appropriate, the N2 RIE treatment and the N2 radical treatment in a separate chamber from the O2 RIE treatment. Further, it is well known to have a configuration wherein, as disclosed in Hiroyuki, a predetermined humidity in the chamber necessary for performing a predetermined process on a substrate can be adjusted by supplying a humidified gas into the chamber, in the interval from when the conveyance of the substrate is started until the substrate is conveyed into the chamber. It would have been easy for a person skilled in the art to adopt this well-known feature in the invention disclosed in Yamauchi. Regarding claims 3-4, since Yamauchi (paragraphs [0077], [0078]) indicates that the RIE treatment or radical treatment is performed in a state where the gas containing H2O is abundant, and a sufficient amount of OH groups can be generated, continuing the supply of the gas containing H2O even during the RIE treatment or radical treatment in order to maintain the amount of H2O during the treatment is merely an exercise of the ordinary creativity a person skilled in the art Moreover, there is no particular difficulty in also performing the same treatment when a new substrate is conveyed in after the substrate subjected to the RIE treatment or the radical treatment has been conveyed out. Regarding claim 5, Hiroyuki further discloses an adjustment operation of measuring the humidity in the chamber and adjusting the moisture content of the supplied gas on the basis of the measurement results. Further, performing the humidity adjustment operation by adjusting the flow rate of the supplied gas is merely an addition of a well-known and commonly used feature. Regarding claim 6, it is the examiner’s position that it is within the skill of one having ordinary skill in the art to performing the prescribed treatment until the humidity reaches the level required for the prescribed treatment. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAMES D SELLS whose telephone number is (571)272-1237. The examiner can normally be reached M-Th 8:30-5. 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, Phillip Tucker can be reached at 571-272-1095. 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. JAMES D. SELLS Primary Examiner Art Unit 1745 /JAMES D SELLS/
Read full office action

Prosecution Timeline

Jul 21, 2023
Application Filed
Mar 09, 2026
Non-Final Rejection mailed — §102, §103 (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
81%
Grant Probability
93%
With Interview (+11.9%)
2y 6m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 887 resolved cases by this examiner. Grant probability derived from career allowance rate.

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