Prosecution Insights
Last updated: October 04, 2026
Application No. 18/777,970

METHODS AND APPARATUSES FOR OPERATING A MEMORY DEVICE

Final Rejection §103
Filed
Jul 19, 2024
Priority
May 10, 2024 — CN 202410578455.5
Examiner
CARDWELL, ERIC
Art Unit
2139
Tech Center
2100 — Computer Architecture & Software
Assignee
Yangtze Memory Technologies Co., Ltd.
OA Round
2 (Final)
88%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
577 granted / 656 resolved
+33.0% vs TC avg
Moderate +12% lift
Without
With
+11.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
16 currently pending
Career history
671
Total Applications
across all art units

Statute-Specific Performance

§101
4.6%
-35.4% vs TC avg
§103
49.3%
+9.3% vs TC avg
§102
25.0%
-15.0% vs TC avg
§112
9.3%
-30.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 656 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 . Response to Amendment Applicant’s Remarks/Arguments filed on May 26th, 2025, have been carefully considered. Claims 1, 13, and 20 have been amended. No claims have been added or canceled. Claims 1-20 are currently pending in the instant application. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-5, 8, 13-15 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Hampel et al. [US2021/0049115] in view of Chung et al. [US2010/0118616]. Hampel teaches memory controller for selective rank or subrank access. Chung teaches semiconductor memory device. Regarding claim 1, 3, 13, and 20, Hampel teaches a memory system [Hampel abstract “…a memory module…”], comprising: a memory device [Hampel figure 9, feature 621 “memory module”], comprising: a memory array comprising memory cells [Hampel figure 9, feature 623 “Memory Device A”]; and a peripheral circuit coupled to the memory array [Hampel figure 9, feature 607], wherein the peripheral circuit comprises a micro controller unit (MCU) [Hampel figure 9, feature 607 “memory controller”(Since the peripheral circuit comprises the micro controller unit then the whole controller unit can be considered the peripheral circuit.)] and a plurality of circuits controlled by the MCU [Hampel figure 9, feature 610, 612, “MSel”, “SSel”, 615, 627, and 623 and 625 (The examiner has determined from the specification that circuits are defined in paragraph 0027 as “and other circuits controlled by the control logic 212, including a page buffer/sense amplifier 204, a column decoder/bit line driver 206, a row decoder/word line driver 208, and a voltage generator 210” and as such the examiner has determined this circuits to be inherently necessary for the typical operation of memory even though they are left out of the figure.)], Hampel fails to explicitly teach wherein the plurality of circuits comprise at least one of a sense amplifier, a word line driver, or a bit line driver, wherein the MCU is configured to switch between a first register and a second register that are coupled to a first circuit of the plurality of circuits and wherein the peripheral circuit. However, Chung does teach wherein the plurality of circuits comprise at least one of a sense amplifier, a word line driver, or a bit line driver [Chung figure 1, feature 130 “Bit-line Selector” and 140 “Shared Sense Amplifier” and paragraph 0050, last lines “…he dual edge flip-flops DD1 to DDn of the bit-line selection signal output unit 132 latch output signals of the logical OR gates OR1 to ORn and sequentially activate the eight bit-line selection signals BSLi to BSLi+7. The two logical OR gates ORS1 and ORS2 of the sense amplifier enable signal output unit 133 activate and output the sense amplifier enable signals SA_en1 and SA_en2, respectively in response to activation of the corresponding bit-line selection signals…”], wherein the MCU is configured to switch between a first register and a second register that are coupled to a first circuit of the plurality of circuits and wherein the peripheral circuit [Chung paragraph 0010, last lines “…the bit-line selector may have a dual edge flip-flop configured to latch and output the output signal of the logical OR gate in response to rising and falling edges of the read burst signal…” and paragraph 0043, first lines “…In response to rising and falling edges of the read burst signal RD_BL, the dual edge flip-flops DD1 to DDn latch the output signals of the logical OR gates OR1 to ORn at the previous stages, and output the bit-line selection signals BSL1 to BSLn…”(The examiner has determined that dual edge flip-flops contain two flip-flop registers that switch back and forth based on the raising or falling edge of the signal, and the output is directly connected to the sense amplifiers and thus reads on the claim limitation or first and second registers)]. Hampel and Chung are analogous arts in that they both deal with controlling memory. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Hampel’s memory device with Chung’s teachings of dual edge triggered flip-flops that are connected to sense amplifiers for the benefit of accomplishing more within a single clock cycle for the benefit of improving the sensing margins [Chung paragraph 0070, last lines “…the shared sense amplifier unit 140 of FIG. 6, the respective sense amplifiers SA1 to SA4 sense and amplify data applied through the bit lines BLi to BLi+7 for one cycle of the clock signal CLK. Thus, sensing margin is improved…”]. during a first time period [Hampel paragraph 0033, last lines “…the shared chip-select line may be activated to trigger sampling of the command/address path within the memory devices 301 of sub-rank A during a first command interval…”], send first data corresponding to a first operation from the MCU to the first register [Hampel paragraph 0046, middle lines “…The command path multiplexer 615 responds to a source-select value, SSel, to couple either internal command path 610 or internal command path 612 to command path, CA, and thus select either transaction queue 609 or transaction queue 611 to source the commands and associated address values for a given memory transaction…”]; and during a second time period [Hampel paragraph 0033, middle lines “…to enable independent memory commands to be received within the A and B memory sub-ranks, a delay interval between chip-select line activation and sampling of the command/address paths—an interval referred to herein as a sampling latency—is established within the memory devices 303 of sub-rank B, so that command path sampling occurs at a later time within memory sub-rank B than within memory sub-rank A…”]: perform the first operation by the first circuit [Hampel paragraph 0046, last lines “…the command path may be driven exclusively by one transaction queue or the other, with chip-select signals for memory sub-ranks (and the data input/output circuitry within transaction queues or elsewhere within the memory controller 607)…”]; and send second data corresponding to a second operation from the MCU to the second register [Hampel paragraph 0046, middle lines “…after each command output sequence from a given transaction queue to enable the alternate transaction queue to drive command path CA in the ensuing command interval…”], wherein the second operation is subsequent to the first operation [Hampel paragraph 0046, middle lines “…after each command output sequence from a given transaction queue…”(Where the word after reads on subsequent.)]; and a controller coupled to the memory device and configured to send signals to the memory device to initiate the first operation and the second operation [Hampel 0003, last lines “…some time, T.sub.RD, after receipt of the memory access command, the read data values retrieved within each of the A and B memory devices are output in parallel data burst sequences…”]. Regarding claims 2 and 14, as per claim 1, Chung teaches an address of the first register is same as an address of the second register [Chung paragraph 0041, middle lines “…a dual edge flip-flop…”]. The examiner has determined that the construction of the dual edge flip-flop operates by way of splitting the input data to both internal flip-flop registers and as such both inputs must have the same address. Which is the same as applications figure 4A and B, there is only one data line going to both registers. Regarding claims 4 and 15, as per claim 1, Hampel teaches a multiplexer (MUX) is coupled between the first register and the second register [Hampel figure 9, feature 615], and wherein the MCU is configured to send an enable signal to the MUX to enable the switch between the first register and the second register [Hampel paragraph 0046, middle lines “…The command path multiplexer 615 responds to a source-select value, SSel, to couple either internal command path 610 or internal command path 612 to command path, CA, and thus select either transaction queue 609 or transaction queue 611 to source the commands and associated address values for a given memory transaction…”(Where the SSEL reads on the enable signal.)]. Regarding claims 5 and 15, as per claim 1, Hampel teaches the MCU is configured to send the enable signal to the MUX after the first time period and before the second time period [Hampel paragraph 0046, middle lines “…after each command output sequence from a given transaction queue to enable the alternate transaction queue to drive command path CA in the ensuing command interval…”]. Regarding claim 8, as per claim 1, Hampel teaches the MUX is coupled to an output terminal of the first register and an output terminal of the second register [Hampel figure 9, features 615, 610 and 612]. Allowable Subject Matter Claims 6-7, 9-12, and 16-19 are 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. Response to Arguments Applicant’s arguments with respect to claims 1, 13, and 20 have been considered but are moot in view of new grounds of rejection. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. How et al. [US9,806,696] How teaches peripheral circuits with dual edge triggered flipflops similar to applicant’s figure 4A as seen in How’s figure 2 feature DET FF. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERIC CARDWELL whose telephone number is (571)270-1379. The examiner can normally be reached on Monday - Friday 10-6pm EST. 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, Reginald Bragdon can be reached on (571) 272-4204. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ERIC CARDWELL/Primary Examiner, Art Unit 2139
Read full office action

Prosecution Timeline

Jul 19, 2024
Application Filed
Feb 26, 2026
Non-Final Rejection mailed — §103
May 11, 2026
Interview Requested
May 19, 2026
Examiner Interview Summary
May 26, 2026
Response Filed
Aug 17, 2026
Final Rejection mailed — §103
Aug 28, 2026
Applicant Interview (Telephonic)
Aug 28, 2026
Examiner Interview Summary

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
88%
Grant Probability
99%
With Interview (+11.7%)
2y 6m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 656 resolved cases by this examiner. Grant probability derived from career allowance rate.

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