Prosecution Insights
Last updated: October 02, 2026
Application No. 18/590,752

ELECTRICAL CONNECTION FOR CHEMICAL MECHANICAL POLISHING CARRIER HEAD

Final Rejection §102§103
Filed
Feb 28, 2024
Examiner
HENSON, KATINA N
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Applied Materials Inc.
OA Round
2 (Final)
57%
Grant Probability
Moderate
3-4
OA Rounds
6m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allowance Rate
387 granted / 684 resolved
-13.4% vs TC avg
Strong +32% interview lift
Without
With
+31.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
72 currently pending
Career history
743
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
53.0%
+13.0% vs TC avg
§102
27.8%
-12.2% vs TC avg
§112
18.3%
-21.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 684 resolved cases

Office Action

§102 §103
DETAILED ACTIONS 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 . 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 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. Status of Claims Below is the Final Action for claims 1 – 2, 4 – 7 and 9 – 19. Claims 3 and 8 are cancelled. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1 – 2, 4 – 7 and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US Publication No.: US 2014/0020829 A1) in view of Li et al. (U. S. Patent No. 9,308,622 B2). PNG media_image1.png 884 1162 media_image1.png Greyscale Regarding Independent Claim 1, Chen et al. discloses a chemical mechanical polishing apparatus (20, Paragraph 21) comprising: a platen (30, Paragraph 21) having a top surface (see Fig 1) to hold a polishing pad (40, Paragraph 21); a carrier head (100, Paragraph 21) to hold a substrate (10, Paragraph 23) against a polishing surface of the polishing pad (40, Paragraph 22) during a polishing process; a sensor (120, Paragraph 31) and/or actuator ("actuators", Paragraph 30) arranged on the carrier head (see Fig 1); a rotary electrical connection (64, Paragraph 27) which provides at least two electrical connections (126, Paragraph 33-34) between a controller (90, Paragraph 28) and the sensor (120, Paragraph 31) and/or actuator ("actuators", Paragraph 30), the controller (90, Paragraph 28) configured to receive a signal from the sensor and/or actuator and control the carrier head (100, Paragraph 21) based on the signal (Paragraph 28) and an input-output distribution (IOD) block (70, Paragraph 27), connected to the controller (90, Paragraph 28) and to the rotary electrical connection (64, Paragraph 27), wherein the IOD block (70) is connected between the rotary electrical connection (64) and the controller (90) to carry the signal between the controller (90) and the sensor (120) and/or actuator (Paragraph 30). Chen does not explicitly teach an electrical input-output distribution (IOD) block and the controller to carry the electrical signal between the controller and the sensor and/or actuator. Li, however, teaches an input-output distribution (IOD) block (connector, 152), connected to the controller (150) , wherein the electrical input-output distribution (IOD) block (152) is connected to the controller (10; Fig. 3) to carry the electrical signal between the controller and the sensor and/or actuator (Col. 2, line 60 – Col. 3, line 6). It would have been obvious to one having ordinary skill in the art before the effective filling date of the claimed invention to modify the apparatus of Chen to further include an electrical input-output distribution (IOD) block and the controller to carry the electrical signal between the controller and the sensor and/or actuator, as taught by Li, since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use of the apparatus (MPEP 2144.07). Regarding claim 2, Chen et al., as modified, discloses the apparatus of claim 1 (20, Paragraph 21), wherein the rotary electrical connection (64, Paragraph 27) is a multi-channel rotary electrical connection (“passage can be connected to the tubing by a rotary coupler”, Paragraph 27, “signal processor… runs through rotary coupler”, Paragraph 34). Regarding claim 4, Chen et al., as modified, discloses the apparatus of claim 3 wherein the IOD block (70, Fig 1) is connected between the carrier head (100, Fig 1) and the rotary electrical connection (64, Fig 1). Regarding claim 5, Chen et al., as modified, discloses the apparatus of claim 4, wherein the IOD block (70, Fig 1) is mounted on the carrier head (100, Fig 1). Regarding claim 6, Chen et al., as modified, discloses the apparatus of claim 5, wherein the IOD block (70, Fig 1) is mounted on an outside surface of the carrier head (see Fig 1). Regarding claim 7, Chen et al., as modified, discloses the apparatus of claim 4 comprising a plurality of sensors (120, Fig 1) in the carrier head (100, Fig 1), and a plurality of wires (126, Paragraph 33) connecting the plurality of sensors (120, Paragraph 33) to the IOD block (70, Fig 1). Regarding claim 19, Chen et al., as modified, discloses apparatus of claim 11, as discussed above. Chen does not teach wherein the central passage is not pressurized. Li, however, teaches the central passage (passage of shaft, 122) is not pressurized (Col. 2, line 60 – Col. 3, line 40; Fig. 3). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. to further include the central passage is not pressurized, as taught by Li, since it has been held that omission of an element and its function in a combination where the remaining elements perform the same functions as before involves only routine skill in the art. Claims 9 – 11 and 15 – 18 are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US Publication No.: US 2014/0020829 A1) in view of Li et al. (U. S. Patent No. 9,308,622 B2) and Perlov et al. (WIPO Publication No.: WO9902304 A1). Regarding claim 9, Chen et al., as modified, discloses the apparatus of claim 1 wherein the carrier head (100, Paragraph 21) includes a plurality of pressurizable chambers (106a-106c, Paragraph 30), and the apparatus comprises a drive shaft (50, Paragraph 27) connecting a motor (54, Paragraph 26) to the carrier head (100, Paragraph 21) to rotate the carrier head (100, Paragraph 21), the drive shaft (50, Paragraph 27) and wires (126, Paragraph 33) to connect to the sensor and/or actuator (120, Paragraph 33), in pneumatic connection (“pneumatic control system”, Paragraph 27) with the plurality of pressurizable chambers (106a-106c, Paragraph 30). Chen et al. does not explicitly disclose a central passage and a plurality of outer passages surrounding the central passage, wherein at least two wires pass through the central passage. PNG media_image2.png 462 934 media_image2.png Greyscale Perlov et al. teaches a central passage (156c, Fig 5) and a plurality of outer passages (156a-b, Fig 5) surrounding the central passage (156c, Fig 5). These passages allow the connection of pressure sources and other components to pass through. While Perlov et al. does not explicitly state that at least two wires pass through the central passage, it would be obvious to one having ordinary skill in the art to utilize the central passage to allow the passing of wires. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. by including the passages in the drive shaft as taught by Perlov et al. to enable connection between components and prevent tangling of wires. Regarding claim 10, Chen et al., as modified, discloses by Perlov et al. discloses the apparatus of claim 9 wherein the at least two wires (126 and 140, Chen et al. Paragraph 33) exit the passage through a wall of the drive shaft (see Chen et al. Fig 1) above the carrier head (100, Chen et al Fig 1). Regarding Independent Claim 11, Chen et al. discloses a chemical mechanical polishing apparatus (20, Paragraph 21) comprising: a platen (30, Paragraph 21) having a top surface (Fig 1) to hold a polishing pad (40, Paragraph 21); a carrier head (100, Paragraph 21) to hold a substrate (10, Paragraph 23) against a polishing surface of the polishing pad (40, Paragraph 22) during a polishing process, the carrier head including a membrane (104, Paragraph 31) that forms a plurality of pressurizable chambers (106a-106c, Paragraph 30), the carrier head (100, Paragraph 21) further including a sensor (120, Paragraph 31) and/or actuator ("actuators", Paragraph 30) configured to generate a signal or receive power (“Signals from the in-situ monitoring system can be passed to controller.” Paragraph 28), the sensor and/or actuator (120, Fig 1) arranged on or in the carrier head (100, Fig 1); a motor (54, Paragraph 26); a drive shaft (50, Paragraph 26) connecting the motor to the carrier head to rotate the carrier head (Paragraph 26), wires (126, Paragraph 33); a rotary electrical connector (64, Paragraph 34) which provides at least two electrical connections between the at least two wires (152, paragraphs 34 and 44) and a controller (90, paragraphs 34 and 44); a rotary pneumatic connector (66, Paragraph 27) which provides a plurality of pneumatic connections (“fluidly connects the pneumatic control system”, Paragraph 27) between the plurality of outer passage (“each pressure supply line can include a passage”, Paragraph 27) and a plurality of individually controllable pressure sources (60, Paragraph 27). Chen et al. does not disclose the drive shaft including a central passage and a plurality of outer passages surrounding the central passage, wherein at least two wires pass through the central passage to connect to the sensor and/or actuators, and the plurality of outer passages are in pneumatic connection with the plurality of pressurizable chambers and a central axis of the drive shaft extends through the central passage. Perlov et al. teaches the drive shaft (78, line 226) including a central passage (156c, Fig 5) and a plurality of outer passages (156a-b, Fig 5) surrounding the central passage (see Fig 5). While Perlov et al. does not explicitly state that at least two wires pass through the central passage to connect to the sensor and/or actuator, it would be obvious to one having ordinary skill in the art to utilize the central passage to allow the passing of wires. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. by including the passages in the drive shaft as taught by Perlov et al. to enable connection between components and prevent tangling of wires. Perlov et al. continues to teach the plurality of outer passages (156a-b, Fig 5) are in pneumatic connection with the plurality of pressurizable chambers (212,214, 216, line 361). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. by including the outer passages in pneumatic connection with the pressurizable chambers as taught by Perlov et al. to ensure precise control over the pressure applied to the wafer during the polishing process. Li, further, teaches a central axis (Fig. 1) of the drive shaft (122) extends through the central passage (Fig. 1). It would have been obvious to one having ordinary skill in the art before the effective filling date of the claimed invention to modify the apparatus of Chen to further include a central axis of the drive shaft extends through the central passage, as taught by Li, since it has been held that rearranging parts of an invention involves only routine skill in the art. (MPEP 2144.04). Regarding Independent Claim 15, Chen et al. discloses a chemical mechanical polishing apparatus (20, Paragraph 21) comprising: a platen (30, Paragraph 21) having a top surface (Fig 1) to hold a polishing pad (40, Paragraph 21); a carrier head (100, Paragraph 21) to hold a substrate (10, Paragraph 23) against a polishing surface of the polishing pad (40, Paragraph 22) during a polishing process, the carrier head (100, Paragraph 21) further including a sensor (120, Paragraph 31) and/or actuator ("actuators", Paragraph 30) configured to generate a signal or receive power (“Signals from the in-situ monitoring system can be passed to controller.” Paragraph 28), the sensor and/or actuator (120, Fig 1) arranged on or in the carrier head (100, Fig 1); a motor (54, Paragraph 26); a drive shaft (50, Paragraph 26) connecting the motor to the carrier head to rotate the carrier head (Paragraph 26); wherein at least two wires (126 and 140, Chen et al. Paragraph 33) exit the passage through a wall of the drive shaft (see Chen et al. Fig 1) above the carrier head (100, Chen et al Fig 1) and are connected to the sensor and/or actuator (120, Paragraph 33); a rotary electrical connector (64, Paragraph 34) which provides at least two electrical connections between the at least two wires (152, paragraphs 34 and 44) and a controller (90, paragraphs 34 and 44); Chen et al. does not explicitly disclose that the drive shaft including a central passage and at least two wires extending through the central passage. Perlov et al. teaches a central passage and a plurality of outer passages (156a-b, Fig 5) surrounding the central passage (156c, Fig 5). These passages allow the connection of pressure sources and other components to pass through. While Perlov et al. does not explicitly state that at least two wires pass through the central passage, it would be obvious to one having ordinary skill in the art to utilize the central passage to allow the passing of wires. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. by including the passages in the drive shaft as taught by Perlov et al. to enable connection between components and prevent tangling of wires. Regarding Claim 16, Chen et al. as modified by Perlov et al. discloses the apparatus of claim 15, wherein the carrier head (100, Chen et al. Fig 1) comprises a housing (102 and 108, Chen et al. Fig 1), the sensor and/or actuator (120, Chen et al. Fig 1) is arranged within the housing (see Chen et al. Fig 1). Chen does not explicitly disclose that the housing includes an opening through which one of the wires extends through to connect to the sensor. However, Chen does disclose two wires (126 and 140, Chen et al. Fig 1) exit the passage through a wall of the drive shaft (see Chen et al. Fig 1) above the carrier head (100, Chen et al Fig 1) and are connected to the sensor (120, Chen et al. Fig 1). Wires exiting through a wall indicates that there is an opening through the housing. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention that an opening exists within the housing to enable wires to pass through. Regarding Claim 17, Chen et al. as modified by Perlov et al. discloses the apparatus of claim 15 wherein the carrier head (100, Paragraph 21) includes a plurality of pressurizable chambers (106a-106c, Paragraph 30), and the apparatus comprises a drive shaft (50, Paragraph 27) connecting a motor (54, Paragraph 26) to the carrier head (100, Paragraph 21) to rotate the carrier head (100, Paragraph 21), the drive shaft (50, Paragraph 27) and wires (126, Paragraph 33) to connect to the sensor and/or actuator (120, Paragraph 33), in pneumatic connection (“pneumatic control system”, Paragraph 27) with the plurality of pressurizable chambers (106a-106c, Paragraph 30). Chen et al. does not explicitly disclose a central passage and a plurality of outer passages surrounding the central passage, wherein at least two wires pass through the central passage. Perlov et al. teaches a central passage and a plurality of outer passages (156a-b, Fig 5) surrounding the central passage (156c, Fig 5). These passages allow the connection of pressure sources and other components to pass through. While Perlov et al. does not explicitly state that at least two wires pass through the central passage, it would be obvious to one having ordinary skill in the art to utilize the central passage to allow the passing of wires. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. by including the passages in the drive shaft as taught by Perlov et al. to enable connection between components and prevent tangling of wires. Regarding Claim 18, Chen et al. as modified by Perlov et al. discloses the apparatus of claim 17 but does not explicitly disclose an aperture extending through the wall of the drive shaft and passing between two of the plurality of outer passages to the central passage, and wherein the at least two wires pass through the aperture. However, Chen et al. as modified by Perlov et al. does disclose two wires (126 and 140, Chen et al. Fig 1) exit the passage through a wall of the drive shaft (see Chen et al. Fig 1). Wires exiting through a wall indicates that there is an opening through the wall and outer and central passages to connect electrical components. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention that an opening exists through a wall of the drive shaft and its passages to enable wires to pass through. Claims 12 – 14 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chen et al. (US Publication No.: US 2014/0020829 A1) in view of Li et al. (U. S. Patent No. 9,308,622 B2), Perlov et al. (WIPO Publication No.: WO9902304 A1) and in further view of Li et al. (US Publication No.: US 2022/0283082 A1) herein referred to as Li 2. Regarding claim 12, Chen et al. as modified, discloses the apparatus of claim 11, with a rotary electrical connector (64, Paragraph 34) but does not explicitly disclose that it comprises an electrical slip ring. Li et al 2 teaches a rotary electrical connector (28, Paragraph 31) comprising a slip ring (“a rotary coupler, e.g. a slip ring”, Paragraph 32). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the apparatus of Chen et al. as modified by Perlov et al. and include a slip ring within the rotary electrical connector as taught by Li et al. in order to enable the continuous transmission of power and signals between the stationary and rotating components. Regarding claim 13, Chen et al. as modified, discloses the apparatus of claim 12, wherein the rotary pneumatic connector (66, Chen et al. Fig 5) is positioned between the rotary electrical connector (64, Chen et al. Fig 5) and the carrier head (100, Chen et al. Fig 5). Regarding claim 14, Chen et al. as modified, discloses the apparatus of claim 13 wherein the rotary pneumatic connector (66, Chen et al. Fig 5) is positioned between the rotary electrical connector (64, Chen et al. Fig 5) and the motor (54, Chen et al. Fig 5). Response to Arguments Applicant’s arguments, see Applicants Arguments/Remarks dated August 7, 2026 with respect to the rejection of claims 1 – 2, 4 – 7 and 9 – 19 under 35 U.S.C. 103 have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new grounds of rejection is made in view of Li. 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. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATINA N HENSON whose telephone number is (571)272-8024. The examiner can normally be reached Monday - Thursday; 5:30am to 3:30pm. 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, Monica Carter can be reached at 571-272-4475. 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. /KATINA N. HENSON/Primary Examiner, Art Unit 3723
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Prosecution Timeline

Feb 28, 2024
Application Filed
May 07, 2026
Non-Final Rejection mailed — §102, §103
Jul 08, 2026
Interview Requested
Jul 21, 2026
Applicant Interview (Telephonic)
Jul 21, 2026
Examiner Interview Summary
Aug 07, 2026
Response Filed
Sep 03, 2026
Final Rejection mailed — §102, §103 (current)

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