Prosecution Insights
Last updated: April 19, 2026
Application No. 18/664,831

PACKAGED ACOUSTIC WAVE DEVICES WITH MULTILAYER PIEZOELECTRIC SUBSTRATE

Non-Final OA §102§103
Filed
May 15, 2024
Examiner
WONG, ALAN
Art Unit
2843
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Skyworks Solutions Inc.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
93%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
494 granted / 594 resolved
+15.2% vs TC avg
Moderate +10% lift
Without
With
+9.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
17 currently pending
Career history
611
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
45.4%
+5.4% vs TC avg
§102
28.1%
-11.9% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 594 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 (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) 1-4, 8, 9, 13, 15-17, 19, 20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sugaya US 10,848,129. 1. Sugaya discloses a packaged acoustic wave component (Figs. 2, 5, etc.; view upside down) comprising: a base layer (31, 51); an acoustic wave filter (33, 53; SAW filter 300A, 500A) disposed on an upper side of the base layer; a cap layer (351, 551) mounted to the upper side of the base layer such that a bottom side of the cap layer faces the upper side of the base layer; and an electrical shield layer (352, 552) disposed on the bottom side of the cap layer such that the electrical shield layer and the acoustic wave filter are positioned between the base layer and the cap layer. 2. The packaged acoustic wave component of claim 1 wherein the base layer is configured as a base wafer (31; base for the acoustic component, thus read as base wafer). 3. The packaged acoustic wave component of claim 1 wherein the cap layer is configured as a cap wafer (351; cap/cover for the acoustic component, thus read as cap wafer). 4. The packaged acoustic wave component of claim 1 further comprising a seal ring (34) disposed on the bottom side of the cap layer around the electrical shield layer. 8. The packaged acoustic wave component of claim 1 further comprising a seal ring (34) disposed on the upper side of the base layer around the acoustic wave filter. 9. The packaged acoustic wave component of claim 8 wherein the seal ring of the base layer is electrically connected to the acoustic wave filter (note that the seal ring or support 34 has vias for electrical connection as shown in Fig. 2). 13. The packaged acoustic wave component of claim 1 wherein the acoustic wave filter is configured as one of a surface acoustic wave (SAW) filter (Col. 5 lines 36-37) or a temperature compensated surface acoustic wave (TCSAW) filter. 15. Sugaya discloses a radio frequency module (Fig. 2, etc.; module 300) including a package acoustic wave component (300A; view upside down), the packaged acoustic wave component comprising: a base layer (31); an acoustic wave filter (33) disposed on an upper side of the base layer; a cap layer (351) mounted to the upper side of the base layer such that a bottom side of the cap layer faces the upper side of the base layer; and an electrical shield layer (352) disposed on the bottom side of the cap layer such that the electrical shield layer and the acoustic wave filter are positioned between the base layer and the cap layer. 16. The radio frequency module of claim 15 wherein the radio frequency module is configured as a front-end module (Col. 1 lines 21-30; Col. 12 lines 10-14). 17. For brevity, Sugaya discloses a radio frequency module as similarly discussed in claim 15 above, and is part of a wireless communication device (Col. 12 lines 10-14). 19. Sugaya discloses a method of making (realized by) a packaged acoustic wave component (Fig. 2, etc.; view upside down), the method comprising: forming a base layer (31); forming an acoustic wave filter (33) disposed on an upper side of the base layer; forming a cap layer (351) for mounting to the upper side of the base layer such that a bottom side of the cap layer faces the upper side of the base layer; and forming an electrical shield layer (352) disposed on the bottom side of the cap layer such that the electrical shield layer and the acoustic wave filter are positioned between the base layer and the cap layer. 20. The method of making a packaged acoustic wave component of claim 19 further comprising forming a seal ring (34) disposed on the bottom side of the cap layer around the electrical shield layer after forming or providing the electrical shield layer. 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) 5, 6, 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sugaya US 10,848,129 in view of Pang US 8,836,449. 5, 6, 10. Sugaya discloses the invention as discussed above, including the shield layer is made of conductive metal material such as copper (Cu), aluminum (Al), silver (Ag), or gold (Au; Col. 5 lines 60-62), but does not disclose for claim 5: the seal ring of the cap layer and the electrical shield layer are made of the same material; for claim 6: the seal ring of the cap layer is made of copper; for claim 10: a support pillar coupling a seal ring of the base layer with a seal ring of the cap layer. Pang exemplarily discloses a packaged acoustic wave component (Fig. 1, etc.) comprising: a base layer (120), an acoustic wave element (124), a cap layer (110), a seal column structure (130) having a seal ring on a bottom side of the cap layer (Fig. 2 item 202), a seal ring on an upper side of the base layer (Fig. 2 item 204), and a support pillar coupling the seal ring of the base layer with the seal ring of the cap layer (Fig. 2 items 206, 208); the seal rings are made of metal material such as Cu, Al, Ag, Au (Col. 10 lines 26-29). At the time of the filing, it would have been obvious to one of ordinary skill in the art to have made the seal ring of Sugaya (34, 54) using the seal column structure of Pang (130). The modification would have been obvious as a substitution of parts for seal ring/structure to provide space/cavity between the base layer and cap layer (Sugaya: Col. 5 lines 50-52; Pang: Col. 8 lines 61-66; MPEP 2143(I)(B)). As a result of the combination, the shield layer and the seal ring can be made of the same material, including copper (Sugaya: Col. 5 lines 60-62, Pang: Col. 10 lines 26-29). Claim(s) 7, 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sugaya US 10,848,129 in view of Hamasaki US 12,290,000. 7, 9. Sugaya discloses the invention as discussed above, but does not disclose for claim 7: the seal ring of the cap layer is electrically connected to the electrical shield layer; for claim 9: alternatively the seal ring (as a whole) of the base layer is electrically connected to the acoustic wave filter. Hamasaki exemplarily discloses a packaged acoustic wave component (Fig. 15) comprising: a base layer (11), an acoustic element (16), a cap layer (21), a shield layer (70) on a bottom side of the cap layer; a seal ring (60a and may include portion of item 70 over item 60a, and 18) of the cap/base layer; the seal ring of the cap layer is electrically connected to the electrical shield layer; the seal ring of base layer is electrically connected to the acoustic wave filter. At the time of the filing, it would have been obvious to one of ordinary skill in the art to have made the electrical shield layer electrically connected to the seal ring and/or seal ring electrically connected to the acoustic wave filter (and thus also adopt/modify to the seal ring of Hamasaki). The modification would have been obvious to provide electrical connection for the ground potential of the shield layer, further surrounding of the grounding/shielding effect around the acoustic element for enhance electromagnetic effect, and further improve isolation characteristics as shown and taught in Hamasaki (Fig. 15; Col. 14 lines 32-49). Claim(s) 11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sugaya US 10,848,129 in view of Toyota US 10,840,879. 11. Sugaya discloses the invention as discussed above, including the cap layer comprises a material including at least one of polyimide, epoxy, BCB, PBO (Col. 5 lines 56-59), but does not disclose the cap layer comprises at least one of silicon, quartz, glass, spinel, or sapphire. Toyota exemplarily discloses a packaged acoustic wave component (Fig. 2) comprising: a base layer (10); an acoustic element (13); a cap layer (20), wherein the cap layer comprises at least one of polyimide, epoxy, BCB, PBO, and silicon (Col. 6 lines 15-19). At the time of the filing, it would have been obvious to one of ordinary skill in the art to have made/replaced the material of the cap layer with silicon. The modification would have been obvious because silicon is an alternate material (to the material used by Sugaya) for the cap layer as taught by Toyota (Col. 6 lines 15-19; MPEP 2143.05(I)(B)). Claim(s) 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sugaya US 10,848,129 in view of Hatakeyama US 10,250,219. 12. Sugaya discloses the invention as discussed above, but does not disclose the electrical shield layer is formed as a grid pattern. Hatakeyama exemplarily discloses a packaged acoustic wave component (Fig. 1, etc.) comprising: a base layer (10), an acoustic element (12), a cap layer (20), an electrical shield layer (37) over the acoustic element; the electrical shield layer is formed as a grid pattern (Figs. 4, 11A-C, 13A) or solid pattern (Fig. 13B). At the time of the filing, it would have been obvious to one of ordinary skill in the art to have made the electrically shield layer in a grid pattern. The modification would have been obvious as alternate pattern structure for electrical shield layer as taught by Hatakeyama (Figs. 4, 11A-C, 13A,B; Col. 7 lines 49-67; MPEP 2143.05(I)(B)). Claim(s) 14, 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sugaya US 10,848,129 in view of Ando US 10,778,183. 14. Sugaya discloses the invention as discussed above, including SAW filter (300A, 500A) but does not disclose the acoustic wave filter is configured as a bulk acoustic wave filter. Ando exemplarily discloses a packaged acoustic wave component (Fig. 3A,B) may be SAW filter or bulk acoustic wave filter (Col. 6 lines 57-65; FBAR). At the time of the filing, it would have been obvious to one of ordinary skill in the art to have made the acoustic wave filter as bulk acoustic wave filter. The modification would have been obvious because filter using bulk acoustic wave is well-known alternative in packaged component as taught by Ando (Col. 6 lines 57-65). 18. Sugaya discloses the invention as discussed above, but does not explicitly disclose an antenna operatively coupled to the acoustic wave filter, a radio frequency amplifier operatively coupled to the radio frequency module and configured to amplify a radio frequency signal, a transceiver in communication with the radio frequency amplifier, and a baseband processor in communication with the transceiver. Ando exemplarily discloses a wireless communication device (Fig. 20) comprising an antenna (610) coupled to an acoustic wave filter (500); a radio frequency amplifier (640) coupled to filter to amplify a radio frequency signal; a transceiver (630) in communication with the radio frequency amplifier, and a baseband processor (660) in communication with the transceiver. At the time of the filing, it would have been obvious to one of ordinary skill in the art to have implemented the wireless device of Sugaya as in Ando. The modification would have been obvious because an exemplarily wireless device is provided by Ando (Fig. 20) useable thereof. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALAN WONG whose telephone number is (571)272-3238. The examiner can normally be reached M-F: 10am - 7:00pm. 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, Andrea Lindgren Baltzell can be reached at 571-272-5918. 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. /A.W/Examiner, Art Unit 2843 /ANDREA LINDGREN BALTZELL/Supervisory Patent Examiner, Art Unit 2843
Read full office action

Prosecution Timeline

May 15, 2024
Application Filed
Jan 09, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12587161
HIGHER ORDER LAMB WAVE ACOUSTIC DEVICES WITH COMPLEMENTARILY-ORIENTED PIEZOELECTRIC LAYERS
2y 5m to grant Granted Mar 24, 2026
Patent 12587171
PASSBAND FILTER COMBINING TWO SETS OF COMPONENTS
2y 5m to grant Granted Mar 24, 2026
Patent 12556159
BULK ACOUSTIC WAVE RESONATOR WITH INTEGRATED CAPACITOR
2y 5m to grant Granted Feb 17, 2026
Patent 12549154
PACKAGE COMPRISING AN ACOUSTIC DEVICE AND A CAP SUBSTRATE COMPRISING AN INDUCTOR
2y 5m to grant Granted Feb 10, 2026
Patent 12542535
ACOUSTIC WAVE FILTER WITH DIFFERENT TYPES OF RESONATORS IN ACOUSTIC FILTER COMPONENT AND/OR MULTIPLEXER
2y 5m to grant Granted Feb 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
83%
Grant Probability
93%
With Interview (+9.5%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 594 resolved cases by this examiner. Grant probability derived from career allow rate.

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