Prosecution Insights
Last updated: July 17, 2026
Application No. 18/882,127

MEMORY DEVICE INCLUDING A VOLTAGE SWITCHING CIRCUIT

Non-Final OA §102
Filed
Sep 11, 2024
Priority
May 07, 2024 — RE 10-2024-0059581
Examiner
HOANG, HUAN
Art Unit
2827
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
SK hynix Inc.
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
1141 granted / 1224 resolved
+25.2% vs TC avg
Moderate +6% lift
Without
With
+5.6%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 8m
Avg Prosecution
15 currently pending
Career history
1241
Total Applications
across all art units

Statute-Specific Performance

§101
1.9%
-38.1% vs TC avg
§103
40.9%
+0.9% vs TC avg
§102
27.7%
-12.3% vs TC avg
§112
9.4%
-30.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1224 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 . 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. Claims 1-3 and 5-18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Oh et al. (US 10,643,704, hereinafter “Oh”). Regarding claim 1, Oh (Fig. 6) hows a memory device comprising: a first semiconductor layer (C) including a memory cell array (110-1 or 110-2), the memory cell array connected to a plurality of word lines extending in a first direction (FD) and a plurality of bit lines extending in a second direction substantially perpendicular to the first direction (SD); and a second semiconductor layer (P) disposed under the first semiconductor layer, and including a first area (130-1 and 130-2 and the blank areas) overlapping the first semiconductor layer in a third direction (TD) substantially perpendicular to the first direction and the second direction and a second area (122A, 121 and 122B) overlapping the first area in the first direction, the second semiconductor layer comprising: a row decoder (120) disposed in the second area, and including a plurality of pass transistors (121); and a first voltage switching circuit (122A) configured to transmit an operating voltage to the plurality of pass transistors, and including a plurality of switching elements, wherein at least one switching element among the plurality of switching elements is disposed in the second area to overlap the plurality of pass transistors in the first direction (Fig. 4 and Fig. 5). Regarding claim 2, Oh discloses the memory device according to claim 1, further comprising: a page buffer circuit (130-1) disposed in the first area, and connected to the plurality of bit lines, wherein the at least one switching element overlaps the page buffer circuit in the first direction. Regarding claim 3. Oh discloses the memory device according to claim 2, wherein the first area includes a first under cell area (130-1) where the page buffer circuit is disposed and a second under cell area (area under 130-1 in the second direction) overlapping the first under cell area in the second direction, and wherein the at least one switching element overlaps the first under cell area in the first direction. Regarding claim 5, Oh discloses the memory device according to claim 1, wherein the plurality of switching elements include a first switching element configured to output an unselected global word line voltage to a global word line and a second switching element configured to output a selected global word line voltage to a global word line, and wherein the first switching element overlaps the plurality of pass transistors in the first direction (Fig. 4 and Fig. 5). Regarding claim 6, Oh discloses the memory device according to claim 1, further comprising: a page buffer circuit (130-1) disposed in the first area, and connected to the plurality of bit lines, wherein the first area includes a first under cell area (130-1) where the page buffer circuit is disposed and a second under cell area (area below 130-1) in the second direction) overlapping the first under cell area in the second direction, and wherein the at least one switching element overlaps the first under cell area and the second under cell area in the first direction. Regarding claim 7, Oh (Fig. 6) shows the memory device according to claim 6, wherein a length in the second direction of an area where the at least one switching element (122A and 122B) overlaps the plurality of pass transistors (121) in the first direction is the same as a sum of a length in the second direction of the first under cell area and a length in the second direction of the second under cell area (the length of 121 in the second direction). Regarding claim 8, Oh discloses the memory device according to claim 6, further comprising: a second voltage switching circuit (122B) disposed in the first area, and configured to transmit an unselected global word line voltage and a selected global word line voltage to the first voltage switching circuit, wherein the second voltage switching circuit overlaps the at least one switching element in the first direction (Fig. 4). Regarding claim 9, Oh discloses the memory device according to claim 1, further comprising: a page buffer circuit (130-1) disposed in the first area, and connected to the plurality of bit lines, wherein the first area includes a first under cell area (130-1) where the page buffer circuit is disposed and a second under cell area overlapping the first under cell area in the second direction (a blank area under 130-1), and wherein at least the other one of the plurality of switching element (122B) is disposed in an area of the second area (122B) except an area overlapping the first under cell area in the first direction and an area overlapping the second under cell area in the first direction (121 and 122A). Regarding claim 10, Oh (Fig. 6) shows a memory device comprising: a first semiconductor layer including a memory cell array, the memory cell array connected to a plurality of word lines extending in a first direction and a plurality of bit lines extending in a second direction substantially perpendicular to the first direction; and a second semiconductor layer disposed under the first semiconductor layer, and including a first area (130-1 and 130-2) overlapping the first semiconductor layer in a third direction substantially perpendicular to the first direction and the second direction and a second area (122A, 121 and 122B) overlapping the first area in the first direction, the second semiconductor layer comprising: a page buffer circuit (130-1 or 130-2) disposed in the first area, and connected to the plurality of bit lines; a row decoder (120) disposed in the second area, and including a plurality of pass transistors (121); and a first voltage switching circuit configured to transmit an operating voltage to the plurality of pass transistors, and including a plurality of switching elements, wherein at least one switching element among the plurality of switching elements is disposed in the second area to overlap the page buffer circuit in the first direction (Fig. 4 and Fig. 5). Regarding claim 11, Oh discloses the memory device according to claim 10, wherein the first area includes a first under cell area where the page buffer circuit is disposed and a second under cell area overlapping the first under cell area in the second direction, and wherein the at least one switching element overlaps the first under cell area in the first direction (see the rejection of claim 3). Regarding claim 12, Oh discloses the memory device according to claim 10, wherein the plurality of switching units include a first switching element configured to output an unselected global word line voltage to a global word line and a second switching element configured to output a selected global word line voltage to a global word line, and wherein the first switching element overlaps the plurality of pass transistors in the first direction (see the rejection of claim 5). Regarding claim 13. Oh discloses the memory device according to claim 12, wherein the first switching element is located on the same line as at least one of the plurality of pass transistors in the first direction (Fig. 4). Regarding claim 14, Oh discloses the memory device according to claim 10, wherein the first area includes a first under cell area where the page buffer circuit is disposed and a second under cell area overlapping the first under cell area in the second direction, and wherein the at least one switching element overlaps the first under cell area and the second under cell area in the first direction (see the rejection of claim 6). Regarding claim 15, Oh (Fig. 6 and the rejection of claim 10) discloses a memory device comprising: a first semiconductor layer including a memory cell array, the memory cell array connected to a plurality of word lines extending in a first direction and a plurality of bit lines extending in a second direction substantially perpendicular to the first direction; and a second semiconductor layer disposed under the first semiconductor layer, the second semiconductor layer comprising: a page buffer circuit connected to the plurality of bit lines; a row decoder connected to the plurality of word lines, and including a plurality of pass transistors; and a first voltage switching circuit configured to transmit an operating voltage to the plurality of pass transistors, and including a plurality of switching elements, wherein at least one switching element among the plurality of switching elements is disposed between the plurality of pass transistors to overlap the plurality of pass transistors in the first direction. Regarding claim 16, Oh (Fig. 6) shows the memory device according to claim 15, wherein the at least one switching element (122B) overlaps the page buffer circuit (130-1) in the first direction. Regarding claim 17, Oh (Fig. 6) shows the memory device according to claim 15, wherein a length in the second direction of an area where the at least one switching element (122B) overlaps the plurality of pass transistors in the first direction is smaller than a length in the second direction of an area where the row decoder is disposed (the length of 121). Regarding claim 18. Oh discloses the memory device according to claim 15, wherein a length in the second direction of an area where the at least one switching element (122A and 122B) overlaps the plurality of pass transistors in the first direction is substantially the same as a length in the second direction of an area where the row decoder (the row decoder has a length in the second direction equal to the length of 121) is disposed. Allowable Subject Matter Claim 4 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. Regarding claim 1, the prior art made of record and considered pertinent to the applicant's disclosure does not teach the claimed limitation of “wherein a length in the first direction of a global word line connected to the switching element which is located closest to the second under cell area in the second direction is larger than a length in the first direction of a global word line connected to the switching element which is located farthest from the second under cell area in the second direction.” in combination with the other limitations thereof as is recited in the claim. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HUAN HOANG whose telephone number is (571)272-1779. The examiner can normally be reached 7:30AM-4:00PM M-F. 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, AMIR ZARABIAN can be reached at 571-272-1852. 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. /HUAN HOANG/Primary Examiner, Art Unit 2827
Read full office action

Prosecution Timeline

Sep 11, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12682937
PROCESSING IN MEMORY REGISTERS
1y 11m to grant Granted Jul 14, 2026
Patent 12681846
MEMORY AND OPERATING METHOD THEREOF
1y 10m to grant Granted Jul 14, 2026
Patent 12676177
DYNAMIC RANDOM ACCESS MEMORY (DRAM) WITH CONFIGURABLE WORDLINE AND BITLINE VOLTAGES
2y 7m to grant Granted Jul 07, 2026
Patent 12675258
CONTROL CIRCUIT, MEMORY SYSTEM, AND OPERATING METHOD
2y 1m to grant Granted Jul 07, 2026
Patent 12658238
ROW DECODERS HAVING TRANSISTORS PLACED IN A PLURALITY OF ROWS AND MEMORY DEVICES INCLUDING THE SAME
2y 6m to grant Granted Jun 16, 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 (+5.6%)
1y 8m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1224 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