Prosecution Insights
Last updated: April 19, 2026
Application No. 18/470,217

BARRIER STRUCTURE FOR DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF

Non-Final OA §102§103
Filed
Sep 19, 2023
Examiner
YI, CHANGHYUN
Art Unit
2812
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Korea Electronics Technology Institute
OA Round
1 (Non-Final)
94%
Grant Probability
Favorable
1-2
OA Rounds
1y 11m
To Grant
98%
With Interview

Examiner Intelligence

Grants 94% — above average
94%
Career Allow Rate
989 granted / 1056 resolved
+25.7% vs TC avg
Minimal +4% lift
Without
With
+4.4%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
49 currently pending
Career history
1105
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
34.4%
-5.6% vs TC avg
§102
35.9%
-4.1% vs TC avg
§112
12.5%
-27.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1056 resolved cases

Office Action

§102 §103
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 . DETAILED ACTION Specification Number of figures submitted does not match the number of figures listed under Brief Description of Drawings in the specification. All of the figures with alphabets should be listed separately. For example, ‘Figs. 1A-1C’ should be ‘Figs. 1A, 1B and 1C’. In particular, ‘FIGS. 2A to 2D’ in the paragraph [0023] and ‘FIGS. 4A to 4D’ in the paragraph [0023] are objected. See MPEP 500 - Receipt and Handling of Mail and Papers, MPEP 507 - Drawing Review in the Office of Patent Application Processing (OPAP). This labeling convention ensures clarity and consistency in referencing figures throughout the patent application and publication. Improper labeling may result in an objection from OPAP and require correction. Appropriate correction is required. 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. Claims 1, 6, 8 and 13 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Kim (US 20230275197). Regarding claim 1. Fig 24 of Kim discloses A barrier structure comprising: a plurality of light-transmissive photoresist patterns ([0147]/[0149]/[0150]: TPL/WCL1/WCL2, ‘formed by a photoresist process’. Thus, being photoresist patterns) disposed on a substrate 11 at predetermined intervals (via BNL(45)); and reflective films ([0218]: each LRL_4 on TPL/WCL1/WCL2) formed on an entire outer surface of the light-transmissive photoresist patterns [0218]. Regarding claim 6. Kim discloses The barrier structure of claim 1, further comprising: non-transmissive photoresist patterns ([0106]: ‘BM’, the light blocking member BM is black matrix which is inherently non-transmissive) disposed under the light-transmissive photoresist patterns (Fig 24) or on the reflective films of an upper side of the light-transmissive photoresist patterns. Regarding claim 8. Kim discloses A method of manufacturing a barrier structure, the method comprising: applying a light-transmissive photoresist ([0149]/[0150]/[0201]: TPL/WCL1/WCL2) on a substrate (Fig 19, [0201]: ‘photoresist process’); forming light-transmissive photoresist patterns spaced apart from each other at predetermined intervals by exposing and developing the light-transmissive photoresist (Fig 19, [0201]: spaced apart by BNL(45)); and forming reflective films (Fig 24: each LRL_4 on TPL/WCL1/WCL2) on an entire upper surface and an entire side surface of the light-transmissive photoresist patterns (Fig 24: LRL_4 is formed on top side surface and curved edge surfaces). Regarding claim 13. Kim discloses The method of claim 8, further comprising: forming non-transmissive photoresist patterns ([0106]: ‘BM’, the light blocking member BM is black matrix which is inherently non-transmissive) disposed under the light-transmissive photoresist patterns (Fig 24) or on the reflective films of an upper side of the light-transmissive photoresist patterns. 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. Claims 2-5, 7, 9-12 and 14 are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 20230275197). Regarding claim 2. Kim discloses The barrier structure of claim 1. But Kim does not explicitly disclose wherein a thickness of the light-transmissive photoresist patterns is 2 μm to 200 μm. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s device within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 3. Kim discloses The barrier structure of claim 1. But Kim does not explicitly disclose wherein a thickness of the light-transmissive photoresist patterns is 10% to 80% of the intervals between the light-transmissive photoresist patterns. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s device within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 4. Kim discloses The barrier structure of claim 1, wherein the reflective films have a reflectance of 50% or more with respect to a light wavelength of 430 nm to 650 nm (Kim’s reflective films made of silver which is well known to the most reflective metal in the visible spectrum (around 400-700 nm), consistently reflecting about 95% to over 97% of light). Regarding claim 5. Kim discloses The barrier structure of claim 1. But Kim does not explicitly disclose wherein a thickness of the reflective films is 50 nm to 500 nm. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s device within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 7. Kim discloses The barrier structure of claim 6. But Kim does not explicitly disclose wherein a thickness of the non-transmissive photoresist patterns is 0.5 μm to 3 μm. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s device within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 9. Kim discloses The method of claim 8. But Kim does not explicitly disclose wherein the light-transmissive photoresist is applied to a thickness of 2 μm to 200 μm. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s method within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 10. Kim discloses The method of claim 8. But Kim does not explicitly disclose wherein a thickness of the light-transmissive photoresist patterns is manufactured to be 10% to 80% of the intervals between the light-transmissive photoresist patterns. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s method within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 11. Kim discloses The method of claim 8, wherein the reflective films are formed by depositing and patterning a metal or oxide having a reflectance of 50% or more with respect to a light wavelength of 430 nm to 650 nm (Kim’s reflective films made of silver which is well known to the most reflective metal in the visible spectrum (around 400-700 nm), consistently reflecting about 95% to over 97% of light). Regarding claim 12. Kim discloses The method of claim 11. But Kim does not explicitly disclose wherein the reflective films are formed to have a thickness of 50 nm to 500 nm. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s method within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Regarding claim 14. Kim discloses The method of claim 13. But Kim does not explicitly disclose wherein the non-transmissive photoresist patterns are formed to have a thickness of 0.5 μm to 3 μm. However, the ordinary artisan would have recognized the claimed range to be a result effective variable. Thus, it would have been obvious that Kim’s method within the claimed range, since optimum or workable ranges of such variables are discoverable through routine experimentation. see MPEP 2144.05 II.B It is further noted that the specification contains no disclosure of either the critical nature of instant claimed range or any unexpected results arising thereof. Where patentability is said to be based upon particular chosen values or upon another variable recited in a claim, the applicant must show that the chosen values are critical. In re Woodruff, 919 F.2d 1575, 1578,16 USPQ2d 1934,1936 (Fed Cir.1990). See also In re Boesch, 205 USPQ 215 (CCPA) (discovery of optimum value of result effective variable in known process is ordinarily within skill of art). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Changhyun Yi whose telephone number is (571)270-7799. The examiner can normally be reached Monday-Friday: 8A-4P. 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, Davienne Monbleau can be reached on 571-272-1945. 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. /Changhyun Yi/Primary Examiner, Art Unit 2812
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Prosecution Timeline

Sep 19, 2023
Application Filed
Dec 09, 2025
Non-Final Rejection — §102, §103
Apr 07, 2026
Response Filed

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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
94%
Grant Probability
98%
With Interview (+4.4%)
1y 11m
Median Time to Grant
Low
PTA Risk
Based on 1056 resolved cases by this examiner. Grant probability derived from career allow rate.

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