Prosecution Insights
Last updated: July 17, 2026
Application No. 18/687,727

THERMAL CONDITIONING UNIT, SUBSTRATE HANDLING DEVICE AND LITHOGRAPHIC APPARATUS

Non-Final OA §102§103
Filed
Feb 28, 2024
Priority
Sep 16, 2021 — EU 21197020.7 +2 more
Examiner
PERSAUD, DEORAM
Art Unit
2882
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
ASML Holding N.V.
OA Round
3 (Non-Final)
77%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
583 granted / 759 resolved
+8.8% vs TC avg
Moderate +12% lift
Without
With
+11.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
798
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
63.8%
+23.8% vs TC avg
§102
28.0%
-12.0% vs TC avg
§112
0.7%
-39.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 759 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 05/06/2026 has been entered. 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. Claims 1, 8 and 11-19 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yassour et al. [US 2008/0145190 A1]. Regarding claim 1, Yassour et al. discloses a thermal conditioning unit to thermally condition a substrate (Figs. 1 and 4-6), the thermal conditioning unit comprising: a surface (as shown in Figs. 1 and 4-6); a plurality of gas inlets and gas outlets provided in the top surface (as shown in Figs. 1 and 4-6, see also paragraphs [0029]-[0033] teaches the plurality of ports); a plurality of pressure valves connected to the plurality of gas inlets and gas outlets (paragraphs [0035] and [0056] teaches flow restrictors), wherein each of the plurality of pressure valves is configured to, during use, be connected to a pressure supply to generate a spatial pressure distribution across the surface of the thermal conditioning unit (paragraphs [0059] and [0085] teaches wafer may be heated or cooled by a conductive heat transfer mechanism, being transferred between platform to a surface of wafer opposite to surface via fluid cushion); and a control device (160) configured to control the plurality of pressure valves to generate, during use, the spatial pressure distribution (paragraphs [0072]-[0080] teaches controlling the gap between the wafer and the surface), wherein the control device (160) is configured to receive substrate shape data representing a shape of the substrate to be conditioned (paragraph [0036] teaches the functionality of the PV-type fluid-cushion, with respect to FD-stiffness and accordingly to the flatness accuracy performances), wherein the control device is configured to control the plurality of pressure valves to adapt the spatial pressure distribution based on the substrate shape data (paragraph [0168] teaches support platform may be implemented to achieve relatively high flatness accuracy) and wherein the spatial pressure distribution provides a vacuum preloaded gas bearing to support the substrate such the entire substrate is suspended away from the surface and out of contact with any structure (paragraph [0040] teaches vacuum preload fluid-cushion that exhibits high flattening performance). Regarding claim 8, Yassour et al. discloses wherein the substrate shape data comprises warpage data (paragraph [0036] teaches the functionality of the PV-type fluid-cushion, with respect to FD-stiffness and accordingly to the flatness accuracy performances). Regarding claim 11, Yassour et al. discloses further comprising a support chuck having at least one degree of freedom (paragraph [0128] teaches vertical movement of platform). Regarding claims 12, 13 and 17, Yassour et al. discloses connecting each of the plurality of pressure valves to a pressure supply, receiving, at the control device, substrate shape data representing a shape of the substrate to be conditioned (paragraph [0036] teaches the functionality of the PV-type fluid-cushion, with respect to FD-stiffness and accordingly to the flatness accuracy performances), and controlling the supply of an over-pressure, under-pressure, and/or ambient pressure to each of the plurality of pressure valves to generate a spatial pressure distribution across the surface of the thermal conditioning unit, wherein the spatial pressure distribution is based on the substrate shape data (paragraphs [0029]-[0033]), further comprising: conditioning the substrate with the generated spatial pressure distribution, and clamping the conditioned substrate (paragraph [0155] teaches non-contact clamped to one of the platforms can be heated or cooled accordingly). Regarding claims 14, 15, 16, 18 and 19, Yassour et al. discloses a substrate handling device comprising the thermal conditioning unit, further comprising an inlet port configured to receive a substrate and a handling robot configured to position the substrate onto the thermal conditioning unit (paragraphs [0027] and [0143] teaches handing and conveying equipment). 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 3-7, 9, 10, 20 and 21 are rejected under 35 U.S.C. 103 as being unpatentable over Yassour et al. in view of Heo et al. [US 2019/0333800 A1]. Regarding claims 3-7, 20 and 21, Yassour et al. discloses the thermal conditioning unit, as applied above. Yassour et al. does not teach wherein the control device is configured to determine a control sequence and/or control set point for the plurality of pressure valves based on the warpage data, wherein the control device is configured to determine the control sequence and wherein the control sequence represents an order in which the pressure valves are operated to establish the spatial pressure distribution, wherein the spatial pressure distribution comprises a plurality of concentric ring-shaped pressure areas, wherein the plurality of gas outlets and gas inlets are arranged along one or more concentric circles, wherein the surface comprises a plurality of grooves, each groove comprising one or more gas inlets or one or more gas outlets, wherein the plurality of grooves are arc or circular shaped. However, Heo et al. discloses apparatus for supporting a substrate comprising a controller to independently control pressure valves to cope with a warpage of a substrate (paragraphs [0047]-[0053], see also Figs. 5-7), wherein the spatial pressure distribution comprises a plurality of concentric ring-shaped pressure areas, wherein the plurality of gas outlets and gas inlets are arranged along one or more concentric circles, wherein the surface comprises a plurality of grooves, each groove comprising one or more gas inlets or one or more gas outlets, wherein the plurality of grooves are arc or circular shaped (as shown in Figs. 1-9). Therefore, it would have been obvious to one of ordinary skill in the art to provide a control sequence to controlled to adapt the spatial pressure distribution based on the substrate warpage data, as taught by Heo et al. in the system of Compen et al. wherein the spatial pressure distribution comprises a plurality of concentric ring-shaped pressure areas and arc groves because such a modification provides a suitable alternative configuration of a substrate support to prevent warpage and improves the specific shaping of the substrate such that the substrate can be uniformly heated or cooled or imaged (processed) (paragraphs [0047]-[0053] of Heo et al.). Response to Arguments Applicant’s arguments with respect to claims 1 and 3-21 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEORAM PERSAUD whose telephone number is (571)270-5476. The examiner can normally be reached M-F 8AM-5PM. 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, Minh-Toan Ton can be reached at 571-272-2303. 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. /DEORAM PERSAUD/Primary Examiner, Art Unit 2882
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Prosecution Timeline

Show 3 earlier events
Jan 15, 2026
Final Rejection mailed — §102, §103
Feb 04, 2026
Response after Non-Final Action
Apr 14, 2026
Response after Non-Final Action
Apr 14, 2026
Notice of Allowance
Apr 21, 2026
Response after Non-Final Action
May 06, 2026
Request for Continued Examination
May 13, 2026
Response after Non-Final Action
May 22, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

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SYSTEM AND METHOD FOR THERMAL MANAGEMENT OF RETICLE IN SEMICONDUCTOR MANUFACTURING
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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
77%
Grant Probability
89%
With Interview (+11.8%)
2y 9m (~4m remaining)
Median Time to Grant
High
PTA Risk
Based on 759 resolved cases by this examiner. Grant probability derived from career allowance rate.

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