Prosecution Insights
Last updated: October 27, 2026
Application No. 18/631,187

RESIN COMPOSITION FOR ENCAPSULATION AND SEMICONDUCTOR DEVICE

Non-Final OA §102
Filed
Apr 10, 2024
Priority
May 12, 2021 — JP 2021-080711 +1 more
Examiner
FANG, SHANE
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shin-Etsu Chemical Co., Ltd.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
1168 granted / 1525 resolved
+11.6% vs TC avg
Strong +19% interview lift
Without
With
+18.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
48 currently pending
Career history
1584
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
54.3%
+14.3% vs TC avg
§102
19.7%
-20.3% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1525 resolved cases

Office Action

§102
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 This application appears to be a division of Application No. 17/734,325, effectively filed 02/28/07, effectively filed 5/12/21. A later application for a distinct or independent invention, carved out of a pending application and disclosing and claiming only subject matter disclosed in an earlier or parent application is known as a divisional application or “division.” The divisional application should set forth the portion of the earlier disclosure that is germane to the invention as claimed in the divisional application. This application is fully supported by 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. Claim(s) 1-7 is(are) rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kitada et al. (WO 2020090491, US 20210384573 as English equivalent, listed on IDS). As to claims 1-7, Kitada (claims, abs., 7, 115-117, 262-265, Comp. 3) discloses a semiconductor device comprising: a power semiconductor element made of Si, SiC, GaN, Ga2O3 or diamond that is encapsulated by a thermally cured (claim 1) product of a resin composition for encapsulation, wherein the resin is an epoxy, NC-3000 (epoxy eq.=276, a biphenyl aralkyl type), the same one used in instant Ex.2 and 4; the resin comprises 82.8 wt% (by calculation) of silica (spherical and melted and crushed silica, particle size 0.5, 4.7 and 20 microns). Instant pgpub [0040-41, 48] indicates the claimed resin composition comprises ≥70 wt% of silica, and there are no particular restrictions on an average particle size of the inorganic filler, it is typically 1 to 100 μm, preferably 1 to 50 μm, more preferably 1 to 20 μm. Thus, the disclosed epoxy composition is substantially identical to the claimed ones regarding, the epoxy, the silica (size, type), and the silica loading. Kitada is silent on the claimed dielectric tangent of not larger than 0.50 when measured at 150° C. and 0.1 Hz. However, the disclosed epoxy composition would inherently exhibit the claimed dielectric tangent, because in view of the substantially identical composition (in this case, the disclosed the epoxy, silica (size, type), and silica loading), it appears that the adduct would have inherently possessed the claimed properties. See MPEP § 2112. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHANE FANG whose telephone number is (571)270-7378. The examiner can normally be reached on Mon-Thurs. 8am-6pm. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Randy Gulakowski can be reached on 571.572.1302. 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. /SHANE FANG/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Apr 10, 2024
Application Filed
Sep 17, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12767758
Resin and Method for Producing Same
3y 8m to grant Granted Oct 20, 2026
Patent 12760148
POLYMERISATION PROCESS
3y 9m to grant Granted Oct 13, 2026
Patent 12760146
HIGH TRANSPARENCY ELECTROCHROMIC POLYMERS
3y 9m to grant Granted Oct 13, 2026
Patent 12753259
Narrow Band Gap Conjugated Polymers Employing Cross-Conjugated Donors Useful In Electronic Devices
4y 5m to grant Granted Oct 06, 2026
Patent 12753272
MELAMINE-BASED POLYMERS AND USES THEREOF
3y 10m to grant Granted Oct 06, 2026
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
77%
Grant Probability
95%
With Interview (+18.6%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1525 resolved cases by this examiner. Grant probability derived from career allowance rate.

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