Prosecution Insights
Last updated: April 19, 2026
Application No. 18/529,365

MEMORY DEVICE AND SYSTEM HAVING MULTIPLE PHYSICAL INTERFACES

Non-Final OA §102
Filed
Dec 05, 2023
Examiner
BERMUDEZ LOZADA, ALFREDO
Art Unit
2825
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Samsung Electronics Co., Ltd.
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
91%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
461 granted / 518 resolved
+21.0% vs TC avg
Minimal +2% lift
Without
With
+1.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
39 currently pending
Career history
557
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
40.7%
+0.7% vs TC avg
§102
44.3%
+4.3% vs TC avg
§112
8.4%
-31.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 518 resolved cases

Office Action

§102
DETAILED ACTION Notice of 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 action is responsive to the following communications: the Application filed December 5, 2023. Claims 1-20 are pending. Claims 1, 6 and 17 are independent. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55 received on January 8, 2024. Information Disclosure Statement Acknowledgment is made of applicant’s Information Disclosure Statement (IDS) filed on December 5, 2023. This IDS has been considered. Claim Rejections - 35 USC § 102 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 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, 6-9 and 17-19 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kim et al. (U.S. 2018/0012867; hereinafter “Kim”). Regarding independent claim 1, Kim discloses a memory device (Fig. 2) comprising: a buffer die (Fig. 2: 150) comprising a first interface circuit (Fig. 2: 151) and a second interface circuit (Fig. 2: 152) configured to communicate with an external device (Fig. 2: MC), wherein the first interface circuit (Fig. 2: 151) is configured to activate responsive to a first selection signal (see page 4, par. 0048), and the second interface circuit (Fig. 2: 152) is configured to activate responsive to a second selection signal (see page 4, par. 0048); and a memory die stack (Fig. 2: 110-140) mounted on the buffer die (Fig. 2: 150) and including a plurality of memory dies (see page 3, par. 0033), wherein the plurality of memory dies are electrically connected to the first interface circuit (Fig. 2: 151) and the second interface circuit (Fig. 2: 152), wherein the first selection signal and the second selection signal are received from a memory controller external to the memory device (Fig. 2: MC, see also pages 4-5, par. 0048-0050). Regarding claim 2, Kim discloses the limitations with respect to claim 1. As discussed above, Kim’s memory device is substantially identical in structure to the claimed “memory device,” where the differences reside only in the remaining limitations relating to function of “process, in parallel, data transmitted to and received from the plurality of memory dies.” The MPEP explains that examiners are to presume claimed functions are inherent when the prior art apparatus is substantially identical to the claimed apparatus. See esp. MPEP 2112.01(I) (Product and Apparatus Claims – When the Structure Recited in the Reference is Substantially Identically to that of the Claims, Claimed Properties or Functions Are Presumed to be Inherent). Kim’s memory device appears to be identical to applicant’s device, and thus the prior art apparatus is substantially identical to claimed apparatus, for which the claimed functions are presumed inherent. See MPEP 2112.01(I). This presumption is rebuttable by applicant either (1) showing the prior art device and claimed device are not the same or (2) proving prior art device is incapable of performing the claimed functions. In re Ludtke, 441 F.2d 660, 664 (CCPA 1971); see MPEP 2112.01(I)(quoting In re Spada, 911 F.2d 705, 709 for “When the PTO shows a sound basis for believing that the products of the application and the prior art are the same, the applicant has the burden of showing that they are not.”). Applicant is reminded that argument of counsel is not evidence. MPEP 2145(I). Applicant is also reminded that claim limitations directed to the manner of operating do not distinguish an apparatus claim from the prior art apparatus. MPEP 2114(II) (“Manner of Operating the Device Does Not Differentiate Apparatus Claim from the Prior Art”). Regarding claim 3, Kim discloses the limitations with respect to claim 2. Furthermore, Kim discloses wherein, after the data is processed in parallel, the memory device is configured to transmit, to the memory controller, first interface circuit data or second interface circuit data based on the first selection signal and the second selection signal (see page 4-5, par. 0048-0050). Regarding independent claim 6, Kim discloses a memory device (Fig. 2) comprising: a buffer die (Fig. 2: 150) comprising a first interface circuit (Fig. 2: 151) and a second interface circuit (Fig. 2: 152) configured to communicate with an external device (Fig. 2: MC), wherein the first interface circuit (Fig. 2: 151) is configured to activate responsive to a first selection signal (see page 4, par. 0048), and the second interface circuit (Fig. 2: 152) is configured to activate responsive to a second selection signal (see page 4, par. 0048); and a memory die stack (Fig. 2: 110-140) mounted on the buffer die (Fig. 2: 150) and including a plurality of memory dies (see page 3, par. 0033), wherein the plurality of memory dies are electrically connected to the first interface circuit (Fig. 2: 151) and the second interface circuit (Fig. 2: 152). As discussed above, Kim’s memory device is substantially identical in structure to the claimed “memory device,” where the differences reside only in the remaining limitations relating to function of “wherein, which of the first interface circuit and the second interface circuit is activated to communicate with an external memory controller is based on whether the first selection signal is fixed to a first voltage level or a second voltage level different from the first voltage level and whether the second selection signal is fixed to the first voltage level or the second voltage level.” The MPEP explains that examiners are to presume claimed functions are inherent when the prior art apparatus is substantially identical to the claimed apparatus. See esp. MPEP 2112.01(I) (Product and Apparatus Claims – When the Structure Recited in the Reference is Substantially Identically to that of the Claims, Claimed Properties or Functions Are Presumed to be Inherent). Kim’s memory device appears to be identical to applicant’s device, and thus the prior art apparatus is substantially identical to claimed apparatus, for which the claimed functions are presumed inherent. See MPEP 2112.01(I). This presumption is rebuttable by applicant either (1) showing the prior art device and claimed device are not the same or (2) proving prior art device is incapable of performing the claimed functions. In re Ludtke, 441 F.2d 660, 664 (CCPA 1971); see MPEP 2112.01(I)(quoting In re Spada, 911 F.2d 705, 709 for “When the PTO shows a sound basis for believing that the products of the application and the prior art are the same, the applicant has the burden of showing that they are not.”). Applicant is reminded that argument of counsel is not evidence. MPEP 2145(I). Applicant is also reminded that claim limitations directed to the manner of operating do not distinguish an apparatus claim from the prior art apparatus. MPEP 2114(II) (“Manner of Operating the Device Does Not Differentiate Apparatus Claim from the Prior Art”). Regarding claim 7, Kim discloses the limitations with respect to claim 6. Furthermore, Kim discloses a redistribution layer of the buffer die (see page 5, par. 0056). As discussed above, Kim’s memory device is substantially identical in structure to the claimed “memory device,” where the differences reside only in the remaining limitations relating to function of “provide the first voltage level or the second voltage level of the first selection signal and the second selection signal.” The MPEP explains that examiners are to presume claimed functions are inherent when the prior art apparatus is substantially identical to the claimed apparatus. See esp. MPEP 2112.01(I) (Product and Apparatus Claims – When the Structure Recited in the Reference is Substantially Identically to that of the Claims, Claimed Properties or Functions Are Presumed to be Inherent). Kim’s memory device appears to be identical to applicant’s device, and thus the prior art apparatus is substantially identical to claimed apparatus, for which the claimed functions are presumed inherent. See MPEP 2112.01(I). This presumption is rebuttable by applicant either (1) showing the prior art device and claimed device are not the same or (2) proving prior art device is incapable of performing the claimed functions. In re Ludtke, 441 F.2d 660, 664 (CCPA 1971); see MPEP 2112.01(I)(quoting In re Spada, 911 F.2d 705, 709 for “When the PTO shows a sound basis for believing that the products of the application and the prior art are the same, the applicant has the burden of showing that they are not.”). Applicant is reminded that argument of counsel is not evidence. MPEP 2145(I). Applicant is also reminded that claim limitations directed to the manner of operating do not distinguish an apparatus claim from the prior art apparatus. MPEP 2114(II) (“Manner of Operating the Device Does Not Differentiate Apparatus Claim from the Prior Art”). Regarding claim 8, Kim discloses the limitations with respect to claim 6. Furthermore, Kim discloses an interposer of a semiconductor package comprising the memory device (see page 7, par. 0075). As discussed above, Kim’s memory device is substantially identical in structure to the claimed “memory device,” where the differences reside only in the remaining limitations relating to function of “provide the first voltage level or the second voltage level of the first selection signal and the second selection signal.” The MPEP explains that examiners are to presume claimed functions are inherent when the prior art apparatus is substantially identical to the claimed apparatus. See esp. MPEP 2112.01(I) (Product and Apparatus Claims – When the Structure Recited in the Reference is Substantially Identically to that of the Claims, Claimed Properties or Functions Are Presumed to be Inherent). Kim’s memory device appears to be identical to applicant’s device, and thus the prior art apparatus is substantially identical to claimed apparatus, for which the claimed functions are presumed inherent. See MPEP 2112.01(I). This presumption is rebuttable by applicant either (1) showing the prior art device and claimed device are not the same or (2) proving prior art device is incapable of performing the claimed functions. In re Ludtke, 441 F.2d 660, 664 (CCPA 1971); see MPEP 2112.01(I)(quoting In re Spada, 911 F.2d 705, 709 for “When the PTO shows a sound basis for believing that the products of the application and the prior art are the same, the applicant has the burden of showing that they are not.”). Applicant is reminded that argument of counsel is not evidence. MPEP 2145(I). Applicant is also reminded that claim limitations directed to the manner of operating do not distinguish an apparatus claim from the prior art apparatus. MPEP 2114(II) (“Manner of Operating the Device Does Not Differentiate Apparatus Claim from the Prior Art”). Regarding claim 9, Kim discloses the limitations with respect to claim 6. As discussed above, Kim’s memory device is substantially identical in structure to the claimed “memory device,” where the differences reside only in the remaining limitations relating to function of “process, in parallel, data transmitted to and received from the plurality of memory dies.” The MPEP explains that examiners are to presume claimed functions are inherent when the prior art apparatus is substantially identical to the claimed apparatus. See esp. MPEP 2112.01(I) (Product and Apparatus Claims – When the Structure Recited in the Reference is Substantially Identically to that of the Claims, Claimed Properties or Functions Are Presumed to be Inherent). Kim’s memory device appears to be identical to applicant’s device, and thus the prior art apparatus is substantially identical to claimed apparatus, for which the claimed functions are presumed inherent. See MPEP 2112.01(I). This presumption is rebuttable by applicant either (1) showing the prior art device and claimed device are not the same or (2) proving prior art device is incapable of performing the claimed functions. In re Ludtke, 441 F.2d 660, 664 (CCPA 1971); see MPEP 2112.01(I)(quoting In re Spada, 911 F.2d 705, 709 for “When the PTO shows a sound basis for believing that the products of the application and the prior art are the same, the applicant has the burden of showing that they are not.”). Applicant is reminded that argument of counsel is not evidence. MPEP 2145(I). Applicant is also reminded that claim limitations directed to the manner of operating do not distinguish an apparatus claim from the prior art apparatus. MPEP 2114(II) (“Manner of Operating the Device Does Not Differentiate Apparatus Claim from the Prior Art”). Regarding independent claim 17, Kim discloses a memory device (Fig. 2) comprising: a buffer die (Fig. 2: 150) comprising a first interface circuit (Fig. 2: 151) and a second interface circuit (Fig. 2: 152) configured to communicate with an external device (Fig. 2: MC), wherein the first interface circuit (Fig. 2: 151) is configured to activate responsive to a first selection signal (see page 4, par. 0048), and the second interface circuit (Fig. 2: 152) is configured to activate responsive to a second selection signal (see page 4, par. 0048); and a memory die stack (Fig. 2: 110-140) mounted on the buffer die (Fig. 2: 150) and including a plurality of memory dies (see page 3, par. 0033), wherein the plurality of memory dies are electrically connected to the first interface circuit (Fig. 2: 151) and the second interface circuit (Fig. 2: 152), wherein the first selection signal and the second selection signal are generated inside the memory device responsive to an interface selection signal received from a memory controller external to the memory device (Fig. 2: MC, see also pages 4-5, par. 0048-0050). Regarding claim 18, Kim discloses wherein the buffer die further comprises a decoder circuit configured to receive the interface selection signal and to generate the first selection signal and the second selection signal (see page 3, par. 0035). Regarding claim 19, Kim discloses the limitations with respect to claim 17. As discussed above, Kim’s memory device is substantially identical in structure to the claimed “memory device,” where the differences reside only in the remaining limitations relating to function of “process, in parallel, data transmitted to and received from the plurality of memory dies.” The MPEP explains that examiners are to presume claimed functions are inherent when the prior art apparatus is substantially identical to the claimed apparatus. See esp. MPEP 2112.01(I) (Product and Apparatus Claims – When the Structure Recited in the Reference is Substantially Identically to that of the Claims, Claimed Properties or Functions Are Presumed to be Inherent). Kim’s memory device appears to be identical to applicant’s device, and thus the prior art apparatus is substantially identical to claimed apparatus, for which the claimed functions are presumed inherent. See MPEP 2112.01(I). This presumption is rebuttable by applicant either (1) showing the prior art device and claimed device are not the same or (2) proving prior art device is incapable of performing the claimed functions. In re Ludtke, 441 F.2d 660, 664 (CCPA 1971); see MPEP 2112.01(I)(quoting In re Spada, 911 F.2d 705, 709 for “When the PTO shows a sound basis for believing that the products of the application and the prior art are the same, the applicant has the burden of showing that they are not.”). Applicant is reminded that argument of counsel is not evidence. MPEP 2145(I). Applicant is also reminded that claim limitations directed to the manner of operating do not distinguish an apparatus claim from the prior art apparatus. MPEP 2114(II) (“Manner of Operating the Device Does Not Differentiate Apparatus Claim from the Prior Art”). Allowable Subject Matter Claims 4-5, 10-16 and 20 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. The following is a statement of reasons for the indication of allowable subject matter: With respect to claim 4, there is no teaching or suggestion in the prior art of record to provide the recited buffer die further comprises a mode register configured to store an interface mode parameter code indicating a single interface mode or a multi interface mode to set the signal interface mode or the multi interface mode for the first interface circuit and the second interface circuit, in the single interface mode, communication is performed with the memory controller by using the first interface circuit or the second interface circuit, and in the multi interface mode, communication is performed with the memory controller by using both the first interface circuit and the second interface circuit. With respect to claim 10, there is no teaching or suggestion in the prior art of record to provide the recited buffer die comprises a mode register configured to store an interface mode parameter code indicating a single interface mode or multi interface mode to set the single interface mode or the multi interface mode for the first interface circuit and the second interface circuit, in the single interface mode, communication is performed with the memory controller by using the first interface circuit or the second interface circuit, and in the multi interface mode, communication is performed with the memory controller by using both the first interface circuit and the second interface circuit. With respect to claim 20, there is no teaching or suggestion in the prior art of record to provide the recited buffer die further comprises a mode register configured to store an interface mode parameter code indicating a single interface mode or a multi interface mode to set the single interface mode or the multi interface mode for the first interface circuit and the second interface circuit, in the single interface mode, communication is performed with the memory controller by using the first interface circuit or the second interface circuit, and, in the multi interface mode, communication is performed with the memory controller by using both the first interface circuit and the second interface circuit. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALFREDO BERMUDEZ LOZADA whose telephone number is (571)272-0877. The examiner can normally be reached 7:00AM-3:30PM 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, Alexander G Sofocleous can be reached at 571-272-0635. 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. /Alfredo Bermudez Lozada/ Primary Examiner, Art Unit 2825
Read full office action

Prosecution Timeline

Dec 05, 2023
Application Filed
Feb 11, 2026
Non-Final Rejection — §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
89%
Grant Probability
91%
With Interview (+1.6%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 518 resolved cases by this examiner. Grant probability derived from career allow rate.

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