Prosecution Insights
Last updated: July 17, 2026
Application No. 18/376,499

CHEMICALLY AMPLIFIED RESIST COMPOSITION AND PATTERNING PROCESS

Non-Final OA §102
Filed
Oct 04, 2023
Priority
Oct 19, 2022 — JP 2022-167620
Examiner
CHACKO DAVIS, DABORAH
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
6m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
707 granted / 983 resolved
+6.9% vs TC avg
Strong +20% interview lift
Without
With
+20.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
39 currently pending
Career history
1021
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
48.0%
+8.0% vs TC avg
§102
22.8%
-17.2% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 983 resolved cases

Office Action

§102
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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)(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) 1-8, is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by U. S. Patent Application Publication No. 2021/0096465 (hereinafter referred to as Fukushima). Fukushima, in abstract, [0005], [0012]-[0017], [0021]-[0026], discloses a chemically amplified resist composition that comprises a polymer that has acid labile groups i.e., the groups, under the action of acid, increases its solubility in an alkaline developer, wherein the polymer has the following recurring unit (a), see below, PNG media_image1.png 198 193 media_image1.png Greyscale wherein AL1, includes (a2), see below, PNG media_image2.png 147 261 media_image2.png Greyscale And R8 is a hydrocarbyl, and Fukushima in [0051], discloses that the polymer with the (a2) recurring unit can include the following, PNG media_image3.png 403 354 media_image3.png Greyscale , PNG media_image4.png 398 372 media_image4.png Greyscale , PNG media_image5.png 329 386 media_image5.png Greyscale , PNG media_image6.png 297 384 media_image6.png Greyscale , and is the same structure recited as (A1). Fukushima, in [0017], discloses that the polymer includes recurring units, see below, PNG media_image7.png 201 164 media_image7.png Greyscale and is the same as the claimed (B1). Fukushima, in [0056], and [0097]-[0098], discloses that the recurring unit adapted to generate acid upon exposure can be in an amount of 0.01 fractional unit and is approximately zero i.e., the polymer can be easily adapted to lack repeat units that generate acid upon exposure. Fukushima, in [0116], discloses that the chemically amplified resist composition includes a photoacid generator, and in [0117]-[0122], and [0124], discloses the following as the photoacid generator in the composition, see below, PNG media_image8.png 137 187 media_image8.png Greyscale and is the same cation as the Xa+ recited as (Xa-1) in claim 2, wherein the anion X-, includes, see below, PNG media_image9.png 95 279 media_image9.png Greyscale wherein R104 can be CF3, and R105 can be a hydrocarbyl, and is the same as the formula recited as (PAG-a), and discloses the following structures as the anion of the photoacid generator, see below, PNG media_image10.png 121 219 media_image10.png Greyscale , PNG media_image11.png 87 213 media_image11.png Greyscale , PNG media_image12.png 111 259 media_image12.png Greyscale , PNG media_image13.png 108 310 media_image13.png Greyscale etc. Fukushima, in [0131]-[0138], discloses that the resist composition can include photoacid generator of the following formula, see below, PNG media_image14.png 164 354 media_image14.png Greyscale and is the same as the structure recited as (PAG-b) (claim 1). Fukushima, in [0021],[0081]-[0091], discloses that the polymer in the chemically amplified resist composition, includes recurring units, see below, PNG media_image15.png 189 192 media_image15.png Greyscale , PNG media_image16.png 187 190 media_image16.png Greyscale and is the same as the claimed (a1) and (a2) recited in claim 3, wherein AL2 and AL3 are acid labile groups that are free of multiple bonds (do not have triple bond). Fukushima, in [0022], [0092]-[0094], discloses that the polymer in the resist composition further includes a recurring unit, see below, PNG media_image17.png 203 201 media_image17.png Greyscale wherein Ap includes a phenolic hydroxy moiety or a lactone ring or carbonate bond or ester bond or ether bond or carboxylic anhydride and is the same as the structure recited as (C1) in claim 4. Fukushima, in [0024], discloses that the resist composition includes an organic solvent, a quencher and a surfactant (claims 5-7). Fukushima, in [0025]-[0026], discloses forming a pattern using the resist composition by applying the resist composition to a substrate to form a resist film and exposing the resist film to high energy radiation such as the claimed EUV or EB or KrF excimer laser or ArF excimer laser, followed by developing the exposed resist film in a developer (claim 8). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Daborah Chacko-Davis whose telephone number is (571) 272-1380. The examiner can normally be reached on 9:30AM-6:00PM EST Mon-Fri. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Sally A. Merkling can be reached on (571) 272-6297. The fax phone number for the organization where this application or proceeding is assigned is 571-272-8300. 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. /DABORAH CHACKO-DAVIS/Primary Examiner, Art Unit 1737 June 10, 2026.
Read full office action

Prosecution Timeline

Oct 04, 2023
Application Filed
Jun 15, 2026
Non-Final Rejection mailed — §102 (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
72%
Grant Probability
92%
With Interview (+20.5%)
3y 4m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 983 resolved cases by this examiner. Grant probability derived from career allowance rate.

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