Prosecution Insights
Last updated: July 17, 2026
Application No. 18/389,704

FABRICATING SLIT STRUCTURES IN THREE-DIMENSIONAL SEMICONDUCTIVE DEVICES

Non-Final OA §103
Filed
Dec 19, 2023
Priority
Nov 09, 2023 — CN 202311498996.9
Examiner
SOWARD, IDA M
Art Unit
2898
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Yangtze Memory Technologies Co., Ltd.
OA Round
1 (Non-Final)
93%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 93% — above average
93%
Career Allowance Rate
1260 granted / 1351 resolved
+25.3% vs TC avg
Moderate +6% lift
Without
With
+5.5%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
53 currently pending
Career history
1383
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
29.0%
-11.0% vs TC avg
§112
22.0%
-18.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1351 resolved cases

Office Action

§103
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 . This Office Action is in response to the election filed April 8, 2026. Election/Restrictions Applicant’s election without traverse of claims 12-18 in the reply filed on April 8, 2026 is acknowledged. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Specification The abstract of the disclosure is objected to because the abstract is in method form. 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). The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. The following title is suggested: SLIT STRUCTURES IN THREE-DIMENSIONAL SEMICONDUCTIVE DEVICES. Claim Rejections - 35 USC § 103 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 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) 12-18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Roh et al. (CN 113629060 A) in view of Ishino (US 2020/0273878 A1). In regard to claim 12, Roh et al. teach a semiconductor device, comprising: an array region (at R1) comprising a first slit structure SL1 extending along a first direction I; and a connection region (at R2) adjacent to the array region (at R1) along a second direction II perpendicular to the first direction I, wherein the connection region (at R2) comprises a second slit structure SL2 extending along the first direction through an insulating layer 74 that extends along the second direction II, and wherein the insulating layer 74 comprises an insulating material (Figures 12A-12B and 16A-16C, pages 21-23). However, Roh et al. fail to teach ions distributed among the insulating material in the insulating layer. Ishino teaches ions distributed among the insulating material (of 22) in the insulating layer 22 (Figures 7-8, pages 2-3, paragraphs [0032]-[0036] and [0042], claim 11). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the semiconductor device structure as taught by Roh et al. with the semiconductor device having ions distributed among the insulating material in the insulating layer as taught by Ishino to prevent dielectric breakdown (page 1, paragraph [0003]). In regard to claim 13, Roh et al. teach a stack of conductive layers 77 and isolating layers 72 alternating with each other along the first direction, wherein each of the first slit structure SL1 and the second slit structure SL2 extends through the stack of conductive layers 77 and isolating layers 72, and wherein the insulating layer 74 is closer to an end of the second slit structure SL2 than the stack of conductive layers 77 and isolating layers 72 along the first direction I (Figures 12A-12B and 16A-16C, pages 21-23). In regard to claim 14, Roh et al. teach the connection region (at R2) comprising a plurality of contact structures (See Figure 16A at 71(ST)) extending through the stack of conductive layers 77 and isolating layers 72, and wherein at least one of the conductive layers 77 is coupled to a corresponding contact structure (See of Figure 16B at 73C) the plurality of contact structures (See Figure 16 at 71(ST)) (Figures 12A-12B and 16A-16C, pages 21-23). In regard to claim 15, Roh et al. teach the connection region (at R2) comprising first and second opposite ends (left to right) along the first direction I, and wherein each of the plurality of contact structures (See Figure 16A at 71(ST)) is coupled out to a conductive contact (at 71(ST)) at the first end or the second end (left to right) (Figures 12A-12B and 16A-16C, pages 21-23). In regard to claim 16, Roh et al. teach the array region (at R1) comprising a plurality of channel structures 34 extending through the stack of conductive layers 77 and isolating layers 72 (Figures 5A, 12A-12B and 16A-16C, pages 14-16 and 21-23). In regard to claim 17, Roh et al. teach the first slit structure SL1 connecting the second slit structure SL2 along the second direction II, and wherein, along a third direction III perpendicular to the first direction I and the second direction II, a width of the first slit structure SL1 is smaller than a width of the second slit structure SL2 (See Figure 11A) (Figures 11A, 12A-12B and 16A-16C, pages 20-23). In regard to claim 18, Roh et al. teach the insulating layer 74 comprising a first surface and a second surface along the first direction I, the first surface being closer to the end of the second slit structure SL2 along the first direction I than the second surface (Figures 12A-12B and 16A-16C, pages 21-23). In regard to a first concentration of the ions adjacent to the first surface being higher than a second concentration of the ions adjacent to the second surface of the insulating layer, it is well known in the art of semiconductor devices that the surface facing the ion source has the highest concentration of ions when implanted in an insulating layer. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The following patents are cited to further show the state of the art with respect to semiconductor devices: Huo e al. (US 2020/0395374 A1) Koh et al. (CN 114256269 A) Wu et al. (CN 112992916 A) Xu et al. (CN 112117272 A). Any inquiry concerning this communication or earlier communications from the examiner should be directed to IDA M SOWARD whose telephone number is (571)272-1845. The examiner can normally be reached Monday through Thursday, 7am to 5:30pm. 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, Leonard Chang can be reached at 571-270-3691. 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. IMS April 21, 2026 /IDA M SOWARD/Primary Examiner, Art Unit 2898
Read full office action

Prosecution Timeline

Dec 19, 2023
Application Filed
Apr 24, 2026
Non-Final Rejection mailed — §103
Jul 14, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12684801
VERTICAL FIELD EFFECT TRANSISTOR INCLUDING CHANNEL HAVING GaN AND AIGaN REGIONS
4y 4m to grant Granted Jul 14, 2026
Patent 12684998
DISPLAY APPARATUS
3y 2m to grant Granted Jul 14, 2026
Patent 12684961
Organic Light Emitting Display Device and Method for Manufacturing the Same
2y 10m to grant Granted Jul 14, 2026
Patent 12684891
THREE-TERMINAL INTERDIGITATED BACK CONTACT PHOTOELECTRIC DEVICE
2y 3m to grant Granted Jul 14, 2026
Patent 12677666
DIE EDGE PROTECTION TO ELIMINATE DIE CHIPPING
4y 2m to grant Granted Jul 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
93%
Grant Probability
99%
With Interview (+5.5%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1351 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month