Prosecution Insights
Last updated: July 17, 2026
Application No. 17/922,034

METAL OXIDE SEMICONDUCTOR MATERIAL, TARGET MATERIAL AND FABRICATION METHOD THEREFOR, THIN FILM TRANSISTOR AND FABRICATION METHOD THEREFOR

Final Rejection §102§103
Filed
Oct 28, 2022
Priority
Dec 18, 2020 — CN 202011511468.9 +1 more
Examiner
BEARDSLEY, JONAS TYLER
Art Unit
2811
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
South China University of Technology
OA Round
2 (Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
165 granted / 278 resolved
-8.6% vs TC avg
Strong +31% interview lift
Without
With
+30.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
27 currently pending
Career history
322
Total Applications
across all art units

Statute-Specific Performance

§103
89.6%
+49.6% vs TC avg
§102
9.2%
-30.8% vs TC avg
§112
0.6%
-39.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 278 resolved cases

Office Action

§102 §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 . 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-4, 7, 9, 11-12, 14 and 16 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by KOGA (US 20150076490). Regarding claim 1, KOGA discloses a metal oxide semiconductor material, comprising: a semiconductor base material (the ZnO 1 that forms the basis of the resistor layer 4, see fig 1A, para 38 and fiig 4, 11, para 47), the semiconductor base material including metal oxide (1 is ZnO, see fig 1, para 22 and 38); and at least one kind of rare earth compound (the compound 3 which can be Pr2O3, see fig 1 and 4, para 38 and 64) directly doped in the semiconductor base material (the compound 3 can be doped into the layer 4 as a compound, see para 22 and 64), each kind of rare earth compound having a general formula represented as (MFD)aAb (3 can be Pr2O3, see para 64), wherein in the general formula (MFD)aAb, MFD is an element selected from rare earth elements capable of undergoing f-d transition and/or charge transfer transition (the rare earth compound can be Pr2O3 which has Pr as MFD, see para 64), A is selected from elements capable of stretching a wavelength range of an absorption spectrum of MFD capable of undergoing the f-d transition and/or the charge transfer transition towards red light into a visible light range (the rare earth compound can be Pr2O3, which has O as A, see para 64), a is a number of the element MFD in the general formula (MFD)aAb, and b is a number of the element A in the general formula (MFD)aAb. Regarding claim 2, KOGA discloses the metal oxide semiconductor material according to claim 1, wherein in the general formula (MFD)aAb, MFD is an element selected from lanthanide metal elements other than lanthanum (the rare earth compound can be Pr2O3 which has Pr as MFD, see para 64). Regarding claim 3, KOGA discloses the metal oxide semiconductor material according to claim 2, wherein in the general formula (MFD)aAb. MFD is an element selected from cerium, praseodymium (the rare earth compound can be Pr2O3 which has Pr as MFD, see para 64), neodymiumn, promethium, samarium, terbium and dysprosium. Regarding claim 4, KOGA discloses the metal oxide semiconductor material according to claim 2, wherein in the general formula (MFD)aAb. MFD is an element selected from praseodymium (the rare earth compound can be Pr2O3 which has Pr as MFD, see para 64) and terbium. Regarding claim 7, KOGA discloses the metal oxide semiconductor material according to claim 1, wherein in each kind of rare earth compound comprised in the metal oxide semiconductor material, a minimum energy required for the element MFD to undergo the f-d transition is less than 2.64 eV and greater than 2.48 eV (if the elements is Pr, the f-d transition can be in that range, see applicants specification paragraph 101 and 104, and fig 1A, para 64). Regarding claim 9, KOGA discloses the metal oxide semiconductor material according to claim 1, wherein the semiconductor base material includes at least one kind of first metal oxide (1 includes metal oxide ZnO, see fig 1A, para 22) and/or at least one kind of second metal oxide, and each kind of first metal oxide and each kind of second metal oxide both have a general formula McOd (ZnO is of the formula McOd, see para 22), wherein for each kind of first metal oxide, M in the general formula McOd is an element selected from indium. Zinc (the first oxide can be ZnO, see para 22), gallium, tin and cadmium; for each kind of second metal oxides (since there only needs to be a first and/OR second metal oxide, it is not necessary for there to be a second metal oxide), M in the general formula McOd is a combination of two or more elements selected from indium, zinc, gallium, tin and cadmium: and c is a number of M in the general formula McOd, and d is a number of oxygens in the general formula. Regarding claim 11, KOGA discloses the metal oxide semiconductor material according to claim 9, wherein in the metal oxide semiconductor material, an elemental composition of the semiconductor base material and the at least one kind of rare earth compound is represented as ((MFD)aAb)X(McOd)1.x (the material can be 0.6& PrO and 97.5% ZnO, see para 64), wherein x is greater than or equal to 0.001 and less than or equal to 0.15 (the material can be 97.5% ZnO, which is x-1, see para 64). Regarding claim 12, KOGA discloses the metal oxide semiconductor material according to claim 11, wherein MFD is an element selected from praseodymium (the rare earth compound can be Pr2O3 which has Pr as MFD, see para 64) and terbium, x is greater than or equal to 0.01 and less than or equal to 0.1 (the material can be 97.5% ZnO, which is x-1, see para 64). Regarding claim 14, KOGA discloses a target material comprising the metal oxide semiconductor material according to claim 1 (4 is the oxide material, see fig 1A and 4, para 22). Regarding claim 16, KOGA discloses a thin film transistor, comprising: an active layer, a material of the active layer including the metal oxide semiconductor material according to claim 1 (11 is a layer through which current flows in the device 14 and is the compound 4, see fig 1A and 4, para 22 and 47). Claim Rejections - 35 USC § 103 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) 5-6, 13 and 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over KOGA (US 20150076490) in view of HERMAN (US 20120012835). Regarding claim 5, KOGA discloses the metal oxide semiconductor material according to claim 1. KOGA fails to explicitly disclose a device, wherein in the general formula (MFD)aAb. A is an element selected from elements whose electronegativities are less than an electronegativity of oxygen. HERMAN teaches a device, wherein in the general formula (MFD)aAb. A is an element selected from elements whose electronegativities are less than an electronegativity of oxygen (208 can be doped with B, which has a lower electronegativity than O according to the applicants disclosure, see fig 2, para 19-20). KOGA and HERMAN are analogous art because they both are directed towards semiconductor devices and one of ordinary skill in the art would have had a reasonable expectation of success to modify the device of KOGA with the dopant materials of HERMAN because they are from the same field of endeavor It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the device of KOGA with the dopant materials of HERMAN in order to improve performance (see HERMAN para 8). Regarding claim 6, KOGA discloses the metal oxide semiconductor material according to claim 5. KOGA fails to explicitly disclose a device, wherein in the general formula (MFD)aAb. A is an element selected from sulfur, selenium, tellurium. bromine, iodine, arsenic and boron. HERMAN teaches a device, wherein in the general formula (MFD)aAb. A is an element selected from sulfur, selenium, tellurium. bromine, iodine, arsenic and boron (208 can be doped with B, see fig 2, para 19-20). KOGA and HERMAN are analogous art because they both are directed towards semiconductor devices and one of ordinary skill in the art would have had a reasonable expectation of success to modify the device of KOGA with the dopant materials of HERMAN because they are from the same field of endeavor It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the device of KOGA with the dopant materials of HERMAN in order to improve performance (see HERMAN para 8). Regarding claim 13, KOGA discloses the metal oxide semiconductor material according to claim 11, wherein x is greater than or equal to 0.001 and less than or equal to 0.02 (the material can be 97.5% ZnO, which is x-1, see para 64). KOGA fails to explicitly disclose a device wherein cerium is selected as MFD. HERMAN teaches a device wherein cerium is selected as MFD (the primary dopant can be Ce, see fig 1-2, para 29). KOGA and HERMAN are analogous art because they both are directed towards semiconductor devices and one of ordinary skill in the art would have had a reasonable expectation of success to modify the device of KOGA with the dopant materials of HERMAN because they are from the same field of endeavor It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the device of KOGA with the dopant materials of HERMAN in order to improve performance (see HERMAN para 8). Regarding claim 15, KOGA discloses the target material according to claim 14. KOGA fails to explicitly disclose a device, wherein in the general formula (MFD)aAb, A is an element selected from sulfur, selenium, tellurium, arsenic and boron. HERMAN teaches a device, wherein in the general formula (MFD)aAb, A is an element selected from sulfur, selenium, tellurium, arsenic and boron (208 can be doped with B, see fig 2, para 19-20). KOGA and HERMAN are analogous art because they both are directed towards semiconductor devices and one of ordinary skill in the art would have had a reasonable expectation of success to modify the device of KOGA with the dopant materials of HERMAN because they are from the same field of endeavor It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the device of KOGA with the dopant materials of HERMAN in order to improve performance (see HERMAN para 8). Claim(s) 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over KOGA (US 20150076490) in view of YAMAZAKI (US 20160276488). Regarding claim 10, KOGA discloses the metal oxide semiconductor material according to claim 9. KOGA fails to explicitly disclose a device, wherein for each kind of first metal oxide and/or each kind of second metal oxide. in the general formula McOd further includes an element or a combination of any two or more elements of lanthanide metals, scandium and yttrium. YAMAZAKI teaches a device, wherein for each kind of first metal oxide and/or each kind of second metal oxide. in the general formula McOd further includes an element or a combination of any two or more elements of lanthanide metals, scandium and yttrium (the semiconductor 106 can include a combination of Y and Ga, see fig 1, para 107). KOGA and YAMAZAKI are analogous art because they both are directed towards semiconductor devices and one of ordinary skill in the art would have had a reasonable expectation of success to modify the device of KOGA with the material of YAMAZAKI because they are from the same field of endeavor It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the device of KOGA with the material of YAMAZAKI in order to increase the gap energy of the semiconductor (see YAMAZAKI para 107). Response to Arguments Applicant’s arguments with respect to claim(s) 1 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion 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 JONAS TYLER BEARDSLEY whose telephone number is (571)272-3227. The examiner can normally be reached 930-600 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, Lynne Gurley can be reached at 571-272-1670. 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. /JONAS T BEARDSLEY/Examiner, Art Unit 2811 /SAMUEL A GEBREMARIAM/Primary Examiner, Art Unit 2811
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Prosecution Timeline

Oct 28, 2022
Application Filed
Dec 30, 2025
Non-Final Rejection mailed — §102, §103
Mar 27, 2026
Response Filed
May 28, 2026
Final Rejection mailed — §102, §103 (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

3-4
Expected OA Rounds
59%
Grant Probability
90%
With Interview (+30.6%)
3y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 278 resolved cases by this examiner. Grant probability derived from career allowance rate.

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