Prosecution Insights
Last updated: April 18, 2026
Application No. 18/233,877

STRUCTURE OF MIM CAPACITOR AND HEAT SINK

Final Rejection §103
Filed
Aug 14, 2023
Examiner
VALENZUELA, PATRICIA D
Art Unit
2812
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
UNITED MICROELECTRONICS CORPORATION
OA Round
2 (Final)
90%
Grant Probability
Favorable
3-4
OA Rounds
2y 4m
To Grant
92%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
645 granted / 715 resolved
+22.2% vs TC avg
Minimal +2% lift
Without
With
+2.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
63 currently pending
Career history
778
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
60.1%
+20.1% vs TC avg
§102
19.9%
-20.1% vs TC avg
§112
8.6%
-31.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 715 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 . 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) 1-9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Huang(USPGPUB DOCUMENT: 2018/0061752, hereinafter Huang) in view of Hasegawa (USPGPUB DOCUMENT: 2018/0145023, hereinafter Hasegawa) and Verma (USPGPUB DOCUMENT: 2021/0313116, hereinafter Verma). Re claim 1 Huang discloses in Fig 5 a structure of a metal-insulator-metal (MIM) capacitor and a heat sink(42/48/50), comprising: a dielectric layer(40/22), wherein the dielectric layer(40/22) comprises a capacitor region(region that comprises 36/34/32) and a heat dispensing region(region that comprises 42/48/50); a bottom electrode(36) embedded in the dielectric layer(40/22);a first heat conductive layer(44)(since 44 may conduct heat, this may be interpreted as a first heat conductive layer)[0028] covering the dielectric layer(40/22) and the heat dispensing region(region that comprises 42/48/50); a capacitor dielectric layer(34) disposed on the first heat conductive layer(44) within the capacitor region(region that comprises 36/34/32); a second heat conductive layer(46/38) (since 46/38 may conduct heat, this may be interpreted as a second heat conductive layer)[0028] covering and contacting the capacitor dielectric layer(34) and the first heat conductive layer(44), wherein the second heat conductive layer(46/38) is disposed within the capacitor region(region that comprises 36/34/32) and the heat dispensing region(region that comprises 42/48/50) ;a top electrode(32) disposed within the capacitor region(region that comprises 36/34/32) and the heat dispensing region(region that comprises 42/48/50), and covering the second heat conductive layer(46/38);a first heat sink(48/50) disposed within the heat dispensing region(region that comprises 42/48/50); and a second heat sink(42) disposed within the heat dispensing region(region that comprises 42/48/50) and contacting the first heat conductive layer(44) and the second heat conductive layer(46/38). Huang does not disclose a first heat sink(48/50) contacting the top electrode(32); wherein the first heat conductive layer is sandwiched between the bottom electrode and the capacitor dielectric layer; wherein the second heat conductive layer is sandwiched between the top electrode and the capacitor dielectric layer; Hasegawa discloses in Fig 2A, rotated 180 degrees, a first heat sink(10) contacting the top electrode(34/35); It would have been obvious to one of ordinary skill in the art before the effective filling date of the invention to apply the teachings of Hasegawa to the teachings of Huang in order to avoid degrading the capacitor [0002, Hasegawa]. Huang and Hasegawa does not disclose wherein the first heat conductive layer is sandwiched between the bottom electrode and the capacitor dielectric layer; wherein the second heat conductive layer is sandwiched between the top electrode and the capacitor dielectric layer; Verma discloses in Fig 7, wherein the first heat conductive layer(18a/b/c/d)[0024] is sandwiched between the bottom electrode(20a) and the capacitor dielectric layer(22b); wherein the second heat conductive layer(18a/b/c/d) is sandwiched between the top electrode(20d) and the capacitor dielectric layer; It would have been obvious to one of ordinary skill in the art before the effective filling date of the invention to apply the teachings of Verma to the teachings of Huang in order to increase the capacitance density in the same area [0003, Verma]. Regarding the limitation a capacitor dielectric layer disposed on the first heat conductive layer". The interpretation of "on" is being interpreted as used to indicate immediate proximity. This interpretation is being based from a general purpose dictionary (see www.Dictionary.com) is the evidence that's being relied upon to show that it's a reasonable interpretation. Re claim 2 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 1, wherein the second heat sink(42) penetrates the dielectric layer(40/22) and an end of the second heat sink(42) contacts the first heat conductive layer(44) and the second heat conductive layer(46/38). Re claim 3 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 1, wherein the capacitor dielectric layer(34) is only disposed in the capacitor region(region that comprises 36/34/32). Re claim 4 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 1, wherein an end of the first heat sink(48/50) contacts the top electrode(32). Re claim 5 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 1, further comprising a first plug disposed in the capacitor region(region that comprises 36/34/32) and contacting the top electrode(32), and a second plug disposed in the capacitor region(region that comprises 36/34/32) and contacting the bottom electrode(36). Re claim 6 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 1, wherein the dielectric layer(40/22) further comprising: an active region; and a metal interconnection structure[0002 of Hasegawa] disposed within the dielectric layer(40/22) within the active region, wherein the first heat conductive layer(44) and the second heat conductive layer(46/38) extend to the active region, and the second heat conductive layer contacts the metal interconnection structure[0002 of Hasegawa]. Re claim 7 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 6, further comprising:a substrate disposed under the dielectric layer(40/22); and a power amplifier disposed on the substrate, wherein the power amplifier[0038 of Hasegawa] is electrically connected to the metal interconnection structure[0002 of Hasegawa]. Re claim 8 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 7, wherein the second heat sink(42) is a through silicon via, and the second heat sink(42) penetrates the substrate. Re claim 9 Huang, Hasegawa and Verma disclose the structure of an MIM capacitor and a heat sink(42/48/50) of claim 1, wherein the first heat conductive layer(44) comprises amorphous aluminum nitride, and the second heat conductive layer(46/38) comprises amorphous aluminum nitride[0025 of Hasegawa]. Response to Arguments Applicant’s arguments with respect to claim(s) 1-9 have been considered but are moot because the arguments do not apply to any of the references being used in the current rejection. 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 PATRICIA D VALENZUELA whose telephone number is (571)272-9242. The examiner can normally be reached Monday-Friday 10am-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, William Partridge can be reached at 571-270-1402. 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. /PATRICIA D VALENZUELA/Primary Examiner, Art Unit 2812
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Prosecution Timeline

Aug 14, 2023
Application Filed
Feb 06, 2026
Non-Final Rejection — §103
Mar 20, 2026
Response Filed
Apr 04, 2026
Final Rejection — §103 (current)

Precedent Cases

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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
90%
Grant Probability
92%
With Interview (+2.1%)
2y 4m
Median Time to Grant
Moderate
PTA Risk
Based on 715 resolved cases by this examiner. Grant probability derived from career allow rate.

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