Prosecution Insights
Last updated: April 19, 2026
Application No. 18/215,255

POSITIVE RESIST COMPOSITION AND PATTERNING PROCESS

Non-Final OA §102
Filed
Jun 28, 2023
Examiner
ROBINSON, CHANCEITY N
Art Unit
1737
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shin-Etsu Chemical Co. Ltd.
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
58%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
758 granted / 1052 resolved
+7.1% vs TC avg
Minimal -14% lift
Without
With
+-14.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
40 currently pending
Career history
1092
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
36.3%
-3.7% vs TC avg
§102
20.9%
-19.1% vs TC avg
§112
24.8%
-15.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1052 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 . Priority Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). Specification Applicant is reminded of the proper language and format for an abstract of the disclosure. The abstract should be in narrative form and generally limited to a single paragraph on a separate sheet within the range of 50 to 150 words in length. The abstract should describe the disclosure sufficiently to assist readers in deciding whether there is a need for consulting the full patent text for details. The language should be clear and concise and should not repeat information given in the title. It should avoid using phrases which can be implied, such as, “The disclosure concerns,” “The disclosure defined by this invention,” “The disclosure describes,” etc. In addition, the form and legal phraseology often used in patent claims, such as “means” and “said,” should be avoided. The abstract of the disclosure is objected to because the abstract is less than 50 words. The abstract should be in narrative form and generally limited to a single paragraph on a separate sheet within the range of 50 to 150 words in length. A corrected abstract of the disclosure is required and must be presented on a separate sheet, apart from any other text. See MPEP § 608.01(b). Claim Objections Claims 3 and 11 are objected to because of the following informalities: Please remove the comma “,” in claims 3 and 11 on line 1 in view of claim consistency. Appropriate correction is required. 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 3-13 are rejected under 35 U.S.C. 102(a) (1) as being anticipated by Hatakeyama et al. (US 2020/0089112 A1). Regarding claim 1, Hatakeyama et al. disclose a positive [0019] resist compound (abstract, claims and examples) comprising a compound having a nitrobenzyl ester group bonded to an iodized aromatic ring ( sulfonium salt having the formula (I) [0015]: PNG media_image1.png 125 414 media_image1.png Greyscale wherein L1, L2 and L3 are an ester bond, R3 is nitro group and R4 is an iodine group meeting the limitation of instant claims). Regarding claim 3, Hatakeyama et al. teach the positive resist composition further comprising a base polymer [0018]. Regarding claims 4-7, Hatayama et al. teach the base polymer comprises a repeat units having a carboxy group whose hydrogen is substituted by an acid liable group having the formula (a1)and/or repeat units having a phenolic hydroxy group whose hydrogen is substituted by an acid liable group having the formula (a2) [0018], and further comprises a repeat units (b) have at least one type formula (c1) to (C3) [0021; see formula (1) to (3) }. Regarding claim 8, Hatakeyama et al. disclose positive resist composition further comprises an acid generator [0017]. Regarding claim 9, Hatakeyama et al. disclose positive resist composition further comprises an organic solvent ( examples and Table 1). Regarding claim 10 Hatakeyama et al. disclose positive resist composition further comprises a quencher ( Table 1 and Examples). Regarding claim 11, Hatakeyama et al. disclose positive resist composition further comprises a surfactant [0022]. Regarding claim 12, Hatakeyama et al. teach a pattern forming process comprising the steps of applying the positive resist composition onto a substrate to form a resist film thereon, exposing the resist film to high-energy radiation, and developing the exposed resist film in developer ( claim 12). Regarding claim 13, Hatakeyama et al. teach the process wherein the high-energy radiation is i-line, KrF excimer laser, ArF excimer laser, EB or EUV of wavelength 3 to 15 nm ( claims 13 and 14). Allowable Subject Matter Claim 2 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. No prior art teaches a compound having a compound having a nitrobenzyl ester group bonded to an iodized aromatic ring has the formula (1) as instantly claimed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHANCEITY N ROBINSON whose telephone number is (571)270-3786. The examiner can normally be reached Monday-Friday (8:00 am-6:00 pm; IFP; PHP). 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, Mark Huff can be reached at 571-272-1385. 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. /CHANCEITY N ROBINSON/Primary Examiner, Art Unit 1737
Read full office action

Prosecution Timeline

Jun 28, 2023
Application Filed
Jan 09, 2026
Non-Final Rejection — §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
72%
Grant Probability
58%
With Interview (-14.0%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 1052 resolved cases by this examiner. Grant probability derived from career allow rate.

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