Prosecution Insights
Last updated: April 19, 2026
Application No. 18/446,435

METHOD FOR FABRICATING VERTICAL CHANNEL NANOWIRE TRANSISTOR WITH ASYMMETRIC STRESS DISTRIBUTION

Non-Final OA §112
Filed
Aug 08, 2023
Examiner
LEE, KYOUNG
Art Unit
2817
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Beijing Intellectual Property Operation Management Co. Ltd.
OA Round
1 (Non-Final)
93%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
98%
With Interview

Examiner Intelligence

Grants 93% — above average
93%
Career Allow Rate
912 granted / 979 resolved
+25.2% vs TC avg
Minimal +5% lift
Without
With
+4.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
23 currently pending
Career history
1002
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
33.0%
-7.0% vs TC avg
§102
40.5%
+0.5% vs TC avg
§112
12.6%
-27.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 979 resolved cases

Office Action

§112
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 based on an application filed in China on 10/27/2022. It is noted, however, that applicant has not filed a certified copy of the 202211323483.X application as required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement (IDS) submitted on 08/08/2023 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-10 rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 recited “(A) growing epitaxially a single crystal material layer on a substrate, wherein for a N-type metal oxide semiconductor (NMOS) device, a lattice constant of a heavily-doped active region material is greater than that of a lightly-doped channel layer; and for a P-type metal oxide semiconductor (PMOS) device, a lattice constant of a heavily-doped active region material is less than that of a lightly-doped channel layer; forming a laminate consisting of a bottom source-drain material and a channel material; and generating a vertical uniaxial stress in the lightly-doped channel layer through lattice mismatch” and the examiner is confused if a lightly-doped channel layer of NMOS is same as a lightly-doped channel layer of PMOS or two different lightly-doped channel layers. If a lightly-doped channel layer is two different channel layer than the examiner is confused which lightly-doped channel layer has a vertical uniaxial stress through lattice mismatch. Claim 9 recited “(I3) filling the source contact hole, the drain contact hole, and the gate contact hole with metal 0; and (I4) performing CMP on the metal 0 to separate conductive layers of devices, so as to realize device isolation” and the examiner is confused what is “0” oxygen or oxide or number zero? Therefore, claim 9 is indefinite. Claim 2-10 depends on independent claim 1, so they are rejected for the same reason. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant’s disclosure: Li et al. (US Patent Appl. Pub. No. 2020/0105875 A1). Any inquiry concerning this communication or earlier communications from the examiner should be directed to KYOUNG LEE whose telephone number is (571)272-1982. The examiner can normally be reached M to F, 10am to 6pm. 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, Eliseo Ramos-Feliciano can be reached at (571)272-7925. 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. /KYOUNG LEE/Primary Examiner, Art Unit 2817
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Prosecution Timeline

Aug 08, 2023
Application Filed
Dec 13, 2025
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
93%
Grant Probability
98%
With Interview (+4.9%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 979 resolved cases by this examiner. Grant probability derived from career allow rate.

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