Prosecution Insights
Last updated: July 17, 2026
Application No. 19/234,151

SOLDER REFLOW APPARATUS

Non-Final OA §102§103
Filed
Jun 10, 2025
Priority
Oct 17, 2022 — RE 10-2022-0133177 +1 more
Examiner
STONER, KILEY SHAWN
Art Unit
1735
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung Electronics Co., Ltd.
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
12m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
1161 granted / 1436 resolved
+15.8% vs TC avg
Strong +15% interview lift
Without
With
+15.3%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
41 currently pending
Career history
1484
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
68.7%
+28.7% vs TC avg
§102
10.0%
-30.0% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1436 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 . 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-7 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Naoi (JP-63-299857A). With respect to claim 1, Naoi teaches a solder reflow apparatus (10) (title; figures; and machine translation) comprising: a reflow chamber (1) configured to receive a heat transfer fluid (solvent 2), the heat transfer fluid for transferring heat to a solder for mounting an electronic part (7) on a substrate (6); a heater (heat source 3) configured to heat the heat transfer fluid in the reflow chamber (figures; and machine translation); and a stage (transport belt 12 or lifting/ lowering mean 5) in the reflow chamber and configured to support the substrate (figures; and machine translation); and a guide (guide cylinder 20) in the reflow chamber and configured to direct the heat transfer fluid toward a central portion of the substrate (figures; and machine translation). With respect to claim 2, Naoi teaches wherein the guide comprises at least one funnel (guide cylinder 20) at a (bottom) side surface of the stage (12), the funnel comprising a body and an outlet (tip opening 21) at an upper end of the body that is directed or oriented toward the central portion of the substrate (figures; and machine translation). With respect to claim 3, Naoi teaches wherein the at least one funnel comprises a plurality of funnels (20 and 21A, 21B, 21C) configured to surround (broadest reasonable interpretation) the stage (figure 2). With respect to claim 4, Naoi teaches wherein the guide comprises at least one eave (guide cylinder 20) at a (bottom) side surface of the stage, the eave comprising an inclined portion (tapered portion of the guide cylinder 20) and a horizontal portion (upper flat portion of 21) extending from the inclined portion toward the central portion of the substrate (figures 1-2; and machine translation). With respect to claim 5, Naoi teaches wherein the at least one eave comprises a plurality of eaves (20 and 21A, 21B, 21C) configured to surround (broadest reasonable interpretation) the stage (figure 2). With respect to claim 6, Naoi teaches a lifter (lifting lowering means 5) configured to lift the stage (figure 3; and the machine translation). With respect to claim 7, Naoi teaches wherein the substrate comprises a package substrate (6) and the electronic part (7) comprises a semiconductor chip (figures; and machine translation). Also note that the material worked (substrate and electronic part) upon does not limit the structure of the claimed apparatus. See MPEP 2115. 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. Claim(s) 6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Naoi (JP-63-299857A). This is an alternative rejection of claim 6. With respect to claim 6, Naoi teaches a guide (guide cylinder 20) in the reflow chamber and configured to direct the heat transfer fluid toward a central portion of the substrate (figures 1-2; and machine translation); and a lifter (lifting lowering means 5) configured to lift the stage (figure 3; and machine translation). At the time of filing the claimed invention it would have been obvious to one of ordinary skill in the art to utilize the guide means of figures 1-2 of Naoi in the embodiment of figure 3 of Naoi in order to direct the vaporized solvent to the desired area of the components being bonded. Claim(s) 8-15 and 18-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Naoi (JP-63-299857A) in view of Biedorf et al. (US2003/0168495A1) (hereafter Biedorf). With respect to claims 8 and 18, Naoi teaches a solder reflow apparatus apparatus (10) (title; figures; and machine translation) comprising: a reflow chamber (10) configured to receive a heat transfer fluid (solvent 2), the heat transfer fluid for transferring heat to a solder for mounting an electronic part (7) on a substrate (6); a heater (heat source 3) configured to heat the heat transfer fluid in the reflow chamber (figures; and machine translation); and a stage (transport belt 12 or lifting/ lowering mean 5) the reflow chamber to support the substrate (figures; and machine translation); and a guide (guide cylinder 20) in the reflow chamber and configured to direct the heat transfer fluid toward a central portion of the substrate (figures; and machine translation). With respect to claim 8, Naoi does not teach the stage (1) inclined with respect to a bottom surface of the reflow chamber to induce the heat transfer fluid toward a central portion of the substrate However, Biedorf teaches the stage (1) inclined with respect to a bottom surface of the reflow chamber (14) to induce the heat transfer fluid toward a central portion of the substrate (figures 1-3; and paragraphs 34-41). At the time of filing the claimed invention it would have been obvious to one of ordinary skill in the art to utilize the inclined stage of Biedorf in the apparatus of Naoi in order to allow bubble to escape from the solder. With respect to claim 9, Naoi teaches wherein the guide comprises at least one funnel (guide cylinder 20) at a (bottom) side surface of the stage (12), the funnel comprising a body and an outlet (tip opening 21) at an upper end of the body that is directed or oriented toward the central portion of the substrate (figures; and machine translation). With respect to claim 10, Naoi teaches wherein the at least one funnel comprises a plurality of funnels (20 and 21A, 21B, 21C) configured to surround (broadest reasonable interpretation) the stage (figure 2). With respect to claim 11, Naoi teaches wherein the guide comprises at least one eave (guide cylinder 20) at a (bottom) side surface of the stage, the eave comprising an inclined portion (tapered portion of the guide cylinder 20) and a horizontal portion (upper flat portion of 21) extending from the inclined portion toward the central portion of the substrate (figures 1-2; and machine translation). With respect to claim 12, Naoi teaches wherein the at least one eave comprises a plurality of eaves (20 and 21A, 21B, 21C) configured to surround (broadest reasonable interpretation) the stage (figure 2). With respect to claim 13, Biedorf teaches wherein an inclined angle between the stage and the bottom surface of the reflow chamber is no more than about 90° (figures 1-3; and paragraphs 34-41). With respect to claim 14, Biedorf teaches at least one clamp (clips that hold (2) in figures 1-2) configured to fix the substrate on the stage. With respect to claim 15, Naoi teaches a lifter (lifting lowering means 5) configured to lift the stage (figure 3; and machine translation). With respect to claim 18, Naoi teaches a solder reflow apparatus comprising: wherein the guide comprises a plurality of guides (guide cylinders 20) configured to surround (broadest reasonable interpretation) the stage (figure 2; and the machine translation). With respect to claim 19, Naoi teaches wherein each of the plurality of guides comprises at least one funnel (guide cylinders 20) at a (bottom) side surface of the stage, the funnel comprising a body and an outlet (tip opening 21) at an upper end of the body that is directed or oriented toward the central portion of the substrate (figures 1-2; and the machine translation). With respect to claim 20, Naoi teaches wherein each of the plurality of guides comprises at least one eave (20 and 21A, 21B, 21C) at a (bottom) side surface of the stage, the eave comprising an inclined portion (tapered portion of the guide cylinder 20) and a horizontal portion (upper flat portion of 21) extending from the inclined portion toward the central portion of the substrate. Claim(s) 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Naoi (JP-63-299857A) in view of Biedorf et al. (US2003/0168495A1) (hereafter Biedorf). This is an alternative rejection of claim 15. With respect to claim 15, Naoi teaches a guide (guide cylinder 20) in the reflow chamber and configured to direct the heat transfer fluid toward a central portion of the substrate (figures 1-2; and machine translation); and a lifter (lifting lowering means 5) configured to lift the stage (figure 3; and machine translation). At the time of filing the claimed invention it would have been obvious to one of ordinary skill in the art to utilize the guide means of figures 1-2 of Naoi in the embodiment of figure 3 of Naoi in order to direct the vaporized solvent to the desired area of the components being bonded. Allowable Subject Matter Claims 16-17 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KILEY SHAWN STONER whose telephone number is (571)272-1183. The examiner can normally be reached on Monday-Thursday. 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, Keith Walker can be reached on 571-272-3458. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /KILEY S STONER/ Primary Examiner, Art Unit 1735
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Prosecution Timeline

Jun 10, 2025
Application Filed
May 07, 2026
Non-Final Rejection mailed — §102, §103
Jun 11, 2026
Examiner Interview Summary
Jun 11, 2026
Applicant Interview (Telephonic)

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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
81%
Grant Probability
96%
With Interview (+15.3%)
2y 1m (~12m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1436 resolved cases by this examiner. Grant probability derived from career allowance rate.

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