Prosecution Insights
Last updated: April 19, 2026
Application No. 18/580,234

QUARTZ CRYSTAL MICROBALANCE (QCM) SENSOR HAVING RAPID REGISTRATION RESPONSE

Non-Final OA §102§103§112
Filed
Jan 18, 2024
Examiner
SCHMITT, BENJAMIN R
Art Unit
2852
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Inficon GmbH
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
1030 granted / 1218 resolved
+16.6% vs TC avg
Strong +16% interview lift
Without
With
+15.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
40 currently pending
Career history
1258
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
45.7%
+5.7% vs TC avg
§102
29.8%
-10.2% vs TC avg
§112
16.5%
-23.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1218 resolved cases

Office Action

§102 §103 §112
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 Objections Claim 15 is objected to because of the following informalities, and should be: “…the non-metalloid elements include elements from a group of: “hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon, radon, bromine, carbon, phosphorous, sulfur, selenium, and iodine; and wherein the “boron, silicon, germanium, arsenic, antimony, and tellurium. (the claimed elements have been transposed between the correct groupings) Claim 24 is objected to because of the following informalities: the phrase “in order to the surface modifications” appears to be missing a word after “in order to”. Claim 26 is objected to because of the following informalities: claim 26 is missing a period at the end of the sentence. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 26 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Regarding claim 26, the limitation “the surface modification is performed on existing quartz crystals” does not further limit claim 15 because the quartz crystal is positively claimed in claim 11 (from which claims 14, 15, and 26 depend), and therefore the quartz crystal must already be an “existing quartz crystal” (making it unclear how claim 26 adds a further limitation). Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. 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 1-2, 4, 6, 8-9, 11, 13, 16-17, 19, and 24 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Rinzan et al. (U.S. Pub. 2020/0176291). Regarding claims 1, 11, and 16, Rinzan discloses (Figs. 1-6) a method for fabricating (see pars. [0005] and [0029]) a Quartz Crystal Microbalance (QCM) sensor 40 [0025] used for monitoring semiconductor processes (see pars. [0025] and [0028]), comprising the steps of: providing a quartz crystal 40 configured to measure a mass deposited on a surface of the quartz crystal (see pars. [0006] and [0034]), the mass difference registered as a consequence of a change in resonance frequency of the quartz crystal (see pars. [0006] and [0034]); modifying the surface of the quartz crystal (by adding/modifying a getter: see pars. [0029]-[0032]); wherein the step of modifying the surface increases a quantity of surface defects for rapid capturing of mass (i.e. the addition/modification/refreshing of the getter increases the quantity of surface defects for rapid capturing of mass: see pars. [0029]-[0032] and [0085]), thereby augmenting a registration response of the QCM sensor (i.e. the addition/modification/refreshing of the getter improves the detection of an air leak: [0034]) when exchanging a consumed QCM sensor in-situ in the semiconductor manufacturing processes (see pars. [0096]-[0098]). Regarding claim 16, Rinzan further discloses increasing the area percentage of defects of the QCM surface (i.e. the addition/modification/refreshing of the getter increases the area percentage of surface defects for rapid capturing of mass: see pars. [0029]-[0032] and [0085]). Regarding claims 2, 13, and 17, Rinzan discloses (Figs. 1-6) attaching non-metalloid elements to the modified surface (i.e. when O2 adsorbs to the Ti of the getter: see pars. [0071] and [0081]). Regarding claims 4, and 19, Rinzan discloses (Figs. 1-6) the non-metalloid elements are nitrogen and oxygen [0071]. Regarding claim 6, Rinzan discloses (Figs. 1-6) the step of attaching non-metalloid elements is performed by adsorption (see pars. [0071] and [0081]). Regarding claim 8, Rinzan discloses (Figs. 1-6) the step of modifying the surface includes the step of increasing the quantity of defects to the sub-micrometer scale (i.e. the roughness is controlled so the 50A level: [0085]). Regarding claim 9, Rinzan discloses (Figs. 1-6) the step of modifying the surface includes a surface modification on the order of angstroms (i.e. the roughness is controlled so the 50A level: [0085]). Regarding claim 24, Rinzan discloses (Figs. 1-6) removing/detaching materials from the quartz crystal surface [0032] in order to produce the surface modifications [0032]. 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. 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. Claim 10 is rejected under 35 U.S.C. 103 as being unpatentable over Rinzan et al. (U.S. Pub. 2020/0176291). Regarding claim 10, Rinzan is applied as above, but does not disclose the step of modifying the surface includes a surface modification on the order of tenths of nano-meters. However, such a modificaiton would be merely a change in size/proportion of the device, which is obvious – see MPEP 2144.04(IV)(A). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify Rinzan’s method so that the step of modifying the surface includes a surface modification on the order of tenths of nano-meters. Claims 3, 5, 7, 12-15, 18, 20-22, and 25-26 are rejected under 35 U.S.C. 103 as being unpatentable over Rinzan et al. (U.S. Pub. 2020/0176291) in view of Ding (U.S. Pub. 2004/0061207). Regarding claims 3, 5, 12, 14-15, 18, and 20-21, Rinzan is applied as above, and discloses (regarding claims 14-15 and 21) attaching non-metalloid elements to the modified surface (i.e. when O2 adsorbs to the Ti of the getter: see pars. [0071] and [0081]); and the non-metalloid elements are nitrogen and oxygen [0071]. Rinzan does not disclose attaching metalloid elements to the modified surface; the metalloid elements are from a group comprising: boron, silicon, germanium, arsenic, antimony, and tellurium; and a combination of non- metalloid and metalloid elements attached to the modified surface of the quartz crystal. Ding discloses attaching metalloid elements to the modified surface (i.e. a getter material can be monocrystalline silicon: [0015]; the metalloid elements is silicon [0015]; and a combination of non- metalloid and metalloid elements attached to the modified surface of the quartz crystal (i.e. silicon doped with Ti etc.: [0015]). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify Rinzan’s method/device to include attaching metalloid elements to the modified surface; the metalloid elements are from a group comprising: boron, silicon, germanium, arsenic, antimony, and tellurium; and a combination of non- metalloid and metalloid elements attached to the modified surface of the quartz crystal, as taught by Ding. Such a modification would be either a simple substitution of one known element for another to obtain predictable results – see MPEP 2143(I)(B); or a combination of prior art elements according to known methods to yield predictable results – see MPEP 2143(I)(A). Regarding claims 7 and 22, Rinzan is applied as above, but does not disclose the step of attaching metalloid elements is performed by adsorption; and the step of treating the QCM surface includes thin film deposition from the group of: atomic layer deposition, chemical vapor deposition, atomic or ion beam bombardment, and high-voltage sputtering. However, the Examiner takes official notice that forming a getter layer by adsorption, atomic layer deposition, chemical vapor deposition, atomic or ion beam bombardment, or high-voltage sputtering was well-known in the art at the time the invention was filed. See MPEP 2144.03. Thus, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify Rinzan’s method so that the step of attaching metalloid elements is performed by adsorption, atomic layer deposition, chemical vapor deposition, atomic or ion beam bombardment, or high-voltage sputtering. Regarding claim 25, Rinzan discloses (Figs. 1-6) precursors/reagents needed to achieve the surface adsorption can be in one of a chemical and a physical form including atoms (i.e. Ti: see pars. [0029]-[0031] and [0079]). Regarding claim 26, Rinzan discloses (Figs. 1-6) the surface modification is performed on existing quartz crystals (see pars. [0029]-[0031] and [0079]). Claim 23 is rejected under 35 U.S.C. 103 as being unpatentable over Rinzan et al. (U.S. Pub. 2020/0176291) in view of DeBoer et al. (U.S. Pub. 2005/0193800). Regarding claim 23, Rinzan is applied as above, and discloses the step of increasing the percentage of defects to the QCM surface is accomplished within a reaction environment including gas and plasma phase environments [0097]-[0098]. Rinzan does not disclose the step of increasing the percentage of defects to the QCM surface is accomplished within a reaction environment including liquid. DeBoer discloses that the sensor can be used in both a gaseous and liquid environment (see par. [0050] – therefore, Rinzan’s sensor which refreshes the getter could be used in an environment that includes liquid). Thus, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify Rinzan’s method so that the step of increasing the percentage of defects to the QCM surface is accomplished within a reaction environment including liquid, as taught by DeBoer. Such a modification would be the application of a known technique to a known device (method, or product) ready for improvement to yield predictable results – see MPEP 2143(I)(D). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Benjamin Schmitt, whose telephone number is (571) 270-7930. The examiner can normally be reached M-F | 8:30-5:00. 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, Walter Lindsay can be reached at (571) 272-1674. 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. /BENJAMIN R SCHMITT/Primary Examiner, Art Unit 2852
Read full office action

Prosecution Timeline

Jan 18, 2024
Application Filed
Aug 21, 2025
Response after Non-Final Action
Feb 27, 2026
Non-Final Rejection — §102, §103, §112 (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

1-2
Expected OA Rounds
85%
Grant Probability
99%
With Interview (+15.6%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1218 resolved cases by this examiner. Grant probability derived from career allow rate.

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