Prosecution Insights
Last updated: April 19, 2026
Application No. 18/415,506

RF FILTER TOPOLOGY FOR SUBSTRATE SUPPORT ASSEMBLY

Final Rejection §102§103
Filed
Jan 17, 2024
Examiner
AL-TAWEEL, MUAAMAR QAHTAN
Art Unit
2838
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Applied Materials, Inc.
OA Round
2 (Final)
89%
Grant Probability
Favorable
3-4
OA Rounds
2y 6m
To Grant
99%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
39 granted / 44 resolved
+20.6% vs TC avg
Strong +15% interview lift
Without
With
+15.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
58 currently pending
Career history
102
Total Applications
across all art units

Statute-Specific Performance

§103
51.6%
+11.6% vs TC avg
§102
46.5%
+6.5% vs TC avg
§112
1.8%
-38.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 44 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 . Response to Arguments Applicant's arguments filed on 02/06/2026 have been fully considered but they are not persuasive due to the following: - With respect to (Claim Rejections - 35 U.S.C. 102/bullet A); Applicant argues in bullet A, pages 1-3 of Remarks filed on 02/06/2026. The Examiner respectfully disagrees. In accordance with broadest reasonable interpretation; Veyres does teach and suggest "a compensation circuit comprising a first input configured to receive a coupled RF power and reduce the coupled RF power back through the first input" as recited in claim 1, because Veyres discloses clearly the compensation circuit as in (fig. 16, Col. 16 lines 55+), and that is right-side triangle 15-10-Transformed shape, also, left-side triangle 10-5-Transformed shape which is exactly the compensation circuit in claim 1 as referenced by the numeral 308 in the Applicant's figure 4. In other words, the Examiner does not understand what is the Applicant's point of view nor know the reason behind the Applicant's diving deep into an irrelevant figure and concluding an incorrect deduction. Again, Veyres explicitly teaches and suggests claims 1-6 and 8-10. With respect to (Claim Rejections - 35 U.S.C. 103/bullet B); Applicant argues in bullet B, pages 3-4 of Remarks filed on 02/06/2026. The Examiner respectfully disagrees. In accordance with broadest reasonable interpretation; Carman does remedy the optional modifications in claims 7, 11 and 20 due to the reason discussed above in bullet A {See above bullet A}. Again, Veyres in view of Carman does teach and suggest "a compensation circuit comprising a first input configured to receive a coupled RF power and reduce the coupled RF power back through the first input" as recited in claims 1 and 11, and "transmitting the coupled RF power processed by the compensation circuit directly to a first RF band-stop filter configured to filter out a first frequency of the coupled RF power, the first frequency corresponding to a highest frequency of an RF signal that generates the coupled RF power" as recited by claim 20. Therefore, as for the reasons stated above, the rejection still stands. 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 1-6 and 8-10 are rejected under 35 U.S.C. 102 (a)(l) as being anticipated by Veyres et al (US Patent No. 6870441). Regarding claim 1, Veyres discloses an RF filter assembly (fig. 16, Col. 16 lines 55+), comprising: a compensation circuit (i.e., transformed shape) comprising a first input (15) configured to receive a coupled RF power (i.e., RF source clamped to 15) and reduce the coupled RF power (i.e., RF source clamped to 15) back through the first input (15); and an RF filter block (i.e., CKT b/w 10 & 2) comprising a second input (10) configured to receive signals (i.e., RFs) processed by the compensation circuit (i.e., transformed shape) and comprising one or more RF filters (i.e., LC/10, LC/5, etc.) configured to filter out predetermined frequencies (i.e., solution within frequency range) of the coupled RF power (i.e., RF source clamped to 15). Regarding claim 2, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the compensative circuit (i.e., transformed shape) comprises an inductive component (Lsb) formed by an inductor (L), a segment (i.e., a section of impedances) of a transmission line (i.e., resonators cable), or a combination of an inductor (L) and a segment (i.e., a section of impedances) of a transmission line (i.e., resonators cable). Regarding claim 3, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the inductive component (Lsb) is connected to the first input (15), and the compensation circuit (i.e., transformed shape) further comprises a first capacitor (i.e., C/12-11) connected to the inductive component (Lsb) and grounded (GND). Regarding claim 4, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the compensation circuit (i.e., transformed shape) comprises a first tank circuit (i.e., CKT/12-GND) that is connected to the inductive component (Lsb) and the first capacitor (i.e., C/12-11), and the first tank circuit (i.e., CKT/12-GND) is connected to the RF filter block (i.e., CKT b/w 10 & 2) in parallel. Regarding claim 5, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the inductive component (i.e., such as Lsb) is formed by a segment (i.e., a section of impedances) of a transmission line (i.e., resonators cable) of the compensation circuit (i.e., transformed shape). Regarding claim 6, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the compensation circuit (i.e., transformed shape) further comprises a second capacitor (i.e., C/6-GND) coupled with the inductive component (i.e., L/6-GND) in parallel to form a second tank circuit (i.e., CKT/7- GND). Regarding claim 8, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the RF filter block (i.e., CKT b/w 10 & 2) comprises a plurality of serially connected RF filters (i.e., LC/10, LC/5, etc.) configured to filter out predetermined frequencies (i.e., solution within frequency range) from a highest one (i.e., high band) to a lowest one (i.e., low band). Regarding claim 9, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), further comprising a grounded shunt capacitor (Cpt) connected to the RF filter block (i.e., CKT b/w 10 & 2). Regarding claim 10, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+), wherein the RF filter assembly (i.e., fig. 16) is connected to a high voltage module (e), and the ground shunt capacitor (Cpt) is connected to the high voltage module (e) in parallel. Claim Rejections - 35 USC § 103 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 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 7 and 11-20 are rejected under 35 U.S.C. 103 as being unpatentable over Veyres et al (US Patent No. 6870441) in view of Carman et al (US Patent No. 9953825). Regarding claim 7, Veyres discloses the RF filter assembly (fig. 16, Col. 16 lines 55+). Veyres does not explicitly disclose wherein the first input is connected to a heating electrode or a chucking electrode of a substrate support assembly. Carman discloses (fig. 2, Col. 4 lines 25+) an apparatus and system for plasma processing a substrate using RF power includes a chamber having walls for housing an electrostatic chuck (ESC) and a top electrode (fig. 2, Col. 4 lines 25+); wherein the first input (216) is connected to a heating electrode (105) or a chucking electrode (210) of a substrate support assembly (220). It would have been obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention to have optionally included the RF chucking electrode assembly in Veyres, as taught by Carman, as it provides the advantage of maintaining clear and reliable signal transmission as well as safeguarding against system malfunctions. Regarding claim 11, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres discloses a compensation circuit (i.e., transformed shape) connected to the chucking electrode of the substrate support assembly (i.e., radioelectric cable/RF assembly) and configured to receive a coupled RF power (i.e., RF source clamped to 15) from an input (15) and reduce a reflection (i.e., limit the signal spectrum) of the coupled RF power (i.e., RF source clamped to 15) back through the input (15); and an RF filter block (i.e., CKT b/w 10 & 2) configured to receive signals (i.e., RFs) processed by the compensation circuit (i.e., transformed shape) and comprising a plurality of RF filters (i.e., LC/10, LC/5, etc.) configured to filter out predetermined frequencies (i.e., solution within frequency range) of the signals (i.e., RFs) processed by the compensation circuit (i.e., transformed shape). Carman further discloses (fig. 2, Col. 4 lines 25+); a chucking circuit (i.e., ESC 227 and its electrodes assembly 105 and 210) for a substrate support assembly (220) of a processing chamber (101), comprising: a chucking electrode (210) coupled with an electric box (i.e., frame support assembly/box which accommodates RF power input ports 216). Regarding claim 12, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres further discloses (fig. 16, Col. 16 lines 55+), wherein the compensation circuit (i.e., transformed shape) comprises an inductive component (Lsb) formed by an inductor (L), a transmission line (i.e., resonators cable), or a combination of an inductor (Lsb) and a transmission line (i.e., resonators cable). Regarding claim 13, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres further discloses (fig. 16, Col. 16 lines 55+) wherein the inductive component (Lsb) is connected to the input (15), and the compensation circuit (i.e., transformed shape) further comprises a first capacitor (i.e., C/12-11) connected to the inductive component (Lsb) and grounded (GND). Regarding claim 14, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres further discloses (fig. 16, Col. 16 lines 55+), wherein the compensation circuit (i.e., transformed shape) comprises a first tank circuit (i.e., CKT/12-GND) that is connected to the inductive component (Lsb) and the first capacitor (i.e., C/12-11), and the first tank circuit (i.e., CKT/12-GND) is connected to the RF filter block (i.e., CKT b/w 10 & 2) in parallel. Regarding claim 15, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres further discloses (fig. 16, Col. 16 lines 55+), wherein the inductive component (Lsb) is formed by a segment (i.e., a section of impedances) of a transmission line (i.e., resonators cable) of the compensation circuit (i.e., transformed shape). Regarding claim 16, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres further discloses (fig. 16, Col. 16 lines 55+), wherein the compensation circuit (i.e., transformed shape) further comprises a second capacitor (i.e., C/6-GND) coupled with the inductive component (i.e., L/6-GND) in parallel to form a second tank circuit (i.e., CKT/7-GND). Regarding claim 17, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Carman further discloses (fig. 2, Col. 4 lines 25+), wherein the input (216) is connected to the chucking electrode (210). Regarding claim 18, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Veyres further discloses (fig. 16, Col. 16 lines 55+), wherein the RF filter block (i.e., CKT b/w 10 & 2) comprises a plurality of serially connected RF filters (i.e., LC/10, LC/5, etc.) configured to filter out predetermined frequencies (i.e., solution within frequency range) from a highest one (i.e., high band) to a lowest one (i.e., low band). Regarding claim 19, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Carman further discloses (fig. 2, Col. 4 lines 25+), wherein the electric box (i.e., frame support assembly/box which accommodates RF power input ports 216) comprises a first housing (i.e., top housing accommodating electrode assembly 210) enclosing a high voltage module (i.e., chucking/RF), a second housing (i.e., bottom housing accommodating electrode assembly 105) enclosing the compensation circuit (i.e., heating/RF), and a bracket (200a) coupling the first housing (i.e., top housing accommodating electrode assembly 210) and second housing (i.e., bottom housing accommodating electrode assembly 105), the bracket (200a) and the second housing (i.e., bottom housing accommodating electrode assembly 105) comprising a plurality of vents (i.e., plurality of openings and dummy opening such as 228, 218, etc.) that allow air to flow (i.e., smooth gas flow between compartments for cooling purposes) from the first housing (i.e., top housing accommodating electrode assembly 210) to the second housing (i.e., bottom housing accommodating electrode assembly 105). Regarding claim 20, Veyres in view of Carman and the teachings of Veyres as modified by Carman have been discussed above. Carman discloses (fig. 2, Col. 4 lines 25+), a method for processing a coupled RF power (i.e., frame support assembly/box which accommodates RF power input ports 216) originated from a substrate support assembly (220) of a processing chamber (101), comprising: transmitting the coupled RF power (i.e., frame support assembly/box which accommodates RF power input ports 216) from an electrode (i.e., 210, 105) within the substrate support assembly (220) directly to a compensation circuit (i.e., RF power source assembly within input ports 216), the electrode (i.e., 105, 210) comprising a chucking electrode (210) or a heating electrode (105); reducing, by the compensation circuit (i.e., RF power source assembly within input ports 216), the coupled RF power (i.e., frame support assembly/box which accommodates RF power input ports 216) back to the electrode (i.e., 105, 210). Veyres further discloses (fig. 16, Col. 16 lines 55+), wherein the compensation circuit (i.e., transformed shape) comprises an inductive component (Lsb) connected to a first grounded capacitor (i.e., C/12-11), and the inductive component (Lsb) comprises an inductor (L), a segment (i.e., a section of impedances) of a transmission line (i.e., resonators cable), or a combination of an inductor (L) and a segment (i.e., a section of impedances) of the transmission line (i.e., resonators cable); transmitting the coupled RF power (i.e., RF source clamped to 15) processed by the compensation circuit (i.e., transformed shape) directly to a first RF band-stop filter (i.e., such LC/10) configured to filter out a first frequency (i.e., high/low band frequency) of the coupled RF power (i.e., RF source clamped to 15), the first frequency (i.e., high/low band frequency) corresponding to a highest frequency (i.e., high band) of an RF signal (i.e., RF/radioelectric) that generates the coupled RF power (i.e., RF source clamped to 15); transmitting an output (i.e., refined/filtered signal) of the first RF band-stop filter (i.e., LC/10) to a second RF band-stop filter (i.e., LC/5) configured to filter a second frequency (i.e., high/low band frequency) of the coupled RF power (i.e., RF source clamped to 15), the second frequency (i.e., high/low band frequency) corresponding to a lowest frequency (i.e., low band frequency) of the RF signal (i.e., radioelectric/RF) that generates the coupled RF power (i.e., RF source clamped to 15); and coupling the second RF band-stop filter (i.e., LC/5) with a high voltage module (e). 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 MUAAMAR Q AL-TAWEEL whose telephone number is (571)270-0339. The examiner can normally be reached 0730-1700. 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, Thienvu V Tran can be reached at (571) 270- 1276. 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. /MUAAMAR QAHTAN AL-TAWEEL/Examiner, Art Unit 2838 /THIENVU V TRAN/ Supervisory Patent Examiner, Art Unit 2838
Read full office action

Prosecution Timeline

Jan 17, 2024
Application Filed
Aug 02, 2025
Non-Final Rejection — §102, §103
Feb 06, 2026
Response Filed
Feb 22, 2026
Final Rejection — §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
89%
Grant Probability
99%
With Interview (+15.2%)
2y 6m
Median Time to Grant
Moderate
PTA Risk
Based on 44 resolved cases by this examiner. Grant probability derived from career allow rate.

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