Prosecution Insights
Last updated: April 19, 2026
Application No. 18/848,950

METHOD FOR CLEANING SEMICONDUCTOR WAFERS IN A CLEANING LINE

Non-Final OA §103
Filed
Sep 20, 2024
Examiner
CARRILLO, BIBI SHARIDAN
Art Unit
1711
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Siltronic AG
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
2y 8m
To Grant
45%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
470 granted / 759 resolved
-3.1% vs TC avg
Minimal -17% lift
Without
With
+-17.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
44 currently pending
Career history
803
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
44.0%
+4.0% vs TC avg
§102
18.4%
-21.6% vs TC avg
§112
33.3%
-6.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 759 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 . Applicant’s election with traverse of Group I, claims 1-3 in the reply filed on 1/29/2026 is acknowledged. 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. 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. Claim(s) 1-3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Yudoovsky et al. (US2006/0254715A1). Yudoovsky et al. teach cleaning semiconductor wafers in a cleaning line (i.e. the direction of cleaning modules 164a, 164B, and 164c in alignment) , which comprises at least 2 cleaning modules (164a, 164b, 164c, Fig.1, paragraph 35), and at least one gripping system, comprising 2 adjacent manipulators (168, 170), each configured to move over at least one of the cleaning modules, the method comprising in the cleaning modules, successfully treating a vertically oriented semiconductor during cleaning steps with a liquid of a respective cleaning step (paragraph 36), moving a first manipulator 168 through a first cleaning module (164A, paragraph 37), while the second manipulator 170 is between two cleaning modules 164B and 162. Re claims 1 and 3, Yudoovsky et al. fail to teach a) the second manipulator between the slot in the cover of the first cleaning module and a slot in a cover of the second cleaning module and b) the second manipulator is arranged above the cover of the first cleaning module but not above the slot in the cover of the second cleaning module. It appears that the above limitations are directed to positioning of the first and second manipulators. Paragraph 38 teaches that the robots 168 and 170 are configured to move laterally along the rail 172 to facilitate access to the cleaning modules. Absent of a showing of criticality and/or unexpected results, it would have been obvious to a person of ordinary skill before the effective filing date of the claimed invention to position the robots at any desired location to facilitate access to the cleaning modules with the advantages of performing multiple processing steps on the substrate surface with greater efficiency and throughput. Re claim 2, refer to elements 164a, 164b, 164c of Fig. 1. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Jeong teaches a CMP process. Wada et al. teach a method of polishing a workpiece. Achkire et al. teach vertical transfer of the wafer. Miyazaki et al. teach a substrate processing apparatus. Maruyama et al. teach a substrate transfer band. Mockel et al. teach a cover for a cleaning module. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Sharidan Carrillo whose telephone number is (571)272-1297. The examiner can normally be reached M-F, 7:00am-4:00pm. 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, Michael Barr can be reached at 571-272-1414. 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. Sharidan Carrillo Primary Examiner Art Unit 1711 /Sharidan Carrillo/Primary Examiner, Art Unit 1711 bsc
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Prosecution Timeline

Sep 20, 2024
Application Filed
Feb 27, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12589983
SYSTEMS AND METHODS FOR DISPENSING LIQUID THROUGH A PORTION OF AN ICE STORAGE BIN AND RELATED CLEANING PROCESSES
2y 5m to grant Granted Mar 31, 2026
Patent 12583727
AUTOMATED CLEANING SYSTEM FOR A BEVERAGE DISPENSER
2y 5m to grant Granted Mar 24, 2026
Patent 12571813
METHOD OF WASHING A FLUIDIC SYSTEM OF AN IN-VITRO DIAGNOSTIC ANALYZER
2y 5m to grant Granted Mar 10, 2026
Patent 12564868
SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD
2y 5m to grant Granted Mar 03, 2026
Patent 12564475
APPARATUS AND SYSTEM FOR CLEANING LENS OF EYE-IMAGING DEVICE AND RELATED METHODS THEREOF
2y 5m to grant Granted Mar 03, 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
62%
Grant Probability
45%
With Interview (-17.1%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 759 resolved cases by this examiner. Grant probability derived from career allow rate.

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