Patents by Inventor Zhiqiang Zhuang
Zhiqiang Zhuang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250219609Abstract: A film bulk acoustic resonator, including: a substrate; an acoustic reflection structure; a bottom electrode; a piezoelectric film; a top electrode; and a raised frame. A spatial region formed by overlapping of the acoustic reflection structure, the bottom electrode, and the piezoelectric film and the top electrode in a thickness direction of the film bulk acoustic resonator is a resonance region, in which the raised frame is arranged, and openings are formed at a side of the raised frame away from the top electrode. The film bulk acoustic resonator can reduce the area ratio of the raised frame in the resonance region and the intensity of the parasitic resonance peak introduced by the raised frame without reducing the Q value of the resonator and without increasing manufacturing process steps.Type: ApplicationFiled: August 1, 2024Publication date: July 3, 2025Inventors: Shuai Yang, Zhang Zhang, Ke Wu, Lirong Zhang, Zhiqiang Zhuang, Chao Wang
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Patent number: 12289091Abstract: The present invention provides a piezoelectric film acoustic resonator, which comprises a substrate, a first electrode disposed over the substrate, a piezoelectric film disposed over the substrate and covering at least a portion of the first electrode and a second electrode disposed on a surface of the piezoelectric film away from the first electrode, one end of the first electrode extends in the direction away from the piezoelectric film to form a first extended pad, one end of the second electrode extends in the direction away from the first extended pad to form a second extended pad, the first extended pad comprises a first protruding reflection grating on the surface away from the substrate, the second extended pad comprises a second protruding reflection grating on the surface away from the substrate. The configuration can reduce the impact on acoustic performance while improving the quality factor.Type: GrantFiled: December 31, 2021Date of Patent: April 29, 2025Assignees: AAC Technologies (Nanjing) Co., Ltd., AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.Inventors: Shuai Yang, Lirong Zhang, Ke Wu, Zhiqiang Zhuang, Chao Wang
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Patent number: 12283942Abstract: The present disclosure provides a piezoelectric resonator comprising a substrate having an acoustic reflection mirror, a bottom electrode stacked on the substrate, a piezoelectric layer disposed on the substrate and covering the bottom electrode, and a top electrode stacked on a surface of piezoelectric layer distal to the bottom electrode. An overlapping portion of the acoustic reflection mirror, the bottom electrode, the piezoelectric layer, and the top electrode along a thickness direction of the piezoelectric resonator is a resonance region. A sidewall of the top electrode or a bottom electrode recesses to form a recessing portion. The recessing portion does not extend to an upper surface or a lower surface of the top electrode or the bottom electrode.Type: GrantFiled: December 28, 2021Date of Patent: April 22, 2025Assignee: AAC Technologies (Nanjing) Co., Ltd.Inventors: Shuai Yang, Ke Wu, Lirong Zhang, Zhiqiang Zhuang, Chao Wang
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Publication number: 20250125786Abstract: The present application provides a film bulk acoustic resonator, including a substrate, an acoustic reflection structure arranged on one side of the substrate, a bottom electrode stacked on one side of the acoustic reflection structure, a piezoelectric film covered on the bottom electrode and a top electrode stacked on a side of the piezoelectric film away from the bottom electrode. An interdigital protrusion frame is provided on a side of the top electrode away from the piezoelectric film, and the interdigital protrusion frame includes a first protrusion frame and a second protrusion frame arranged at intervals. The first protrusion frame and the second protrusion frame respectively extend toward each other and overlap each other to form at least a pair of interdigital structures, and each of the interdigital structures includes two forks spaced apart by a preset distance along an overlapping direction.Type: ApplicationFiled: August 4, 2022Publication date: April 17, 2025Inventors: Shuai Yang, Ke Wu, Chao Wang, Lirong Zhang, Zhiqiang Zhuang
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Publication number: 20240348227Abstract: The present disclosure provides a piezoelectric resonator, including a bottom electrode, a piezoelectric layer formed on a side of the bottom electrode, a top electrode formed on a side of the piezoelectric layer away from the bottom electrode, an acoustic wave reflection structure formed on a side of bottom electrode away from piezoelectric layer, an insertion layer, and a mass load. The top electrode, piezoelectric layer, bottom electrode, and acoustic wave reflection structure form a resonant region. The insertion layer is formed on a side of top electrode away from piezoelectric layer and/or on the side of bottom electrode away from piezoelectric layer, and at least partially covers the resonant region. The mass load is formed on a side of the insertion layer away from piezoelectric layer, and is at least partially formed in the resonant region. The piezoelectric resonator has high performance, lower process difficulty, higher manufacturability and yield.Type: ApplicationFiled: December 20, 2023Publication date: October 17, 2024Inventors: Ke Wu, Shuai Yang, Lirong Zhang, Zhang Zhang, Zhiqiang Zhuang, Chao Wang
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Publication number: 20240267018Abstract: A piezoelectric film bulk acoustic resonator includes a substrate, a bottom electrode located on one side of the substrate, a piezoelectric layer covering one side of the bottom electrode away from the substrate, a top electrode located on one side of the piezoelectric layer away from the bottom electrode, an etching insertion layer located on one side of the top electrode away from the piezoelectric layer, and a protruding frame located on one side of the etching insertion layer away from the top electrode. At least one of the etching insertion layer and the protruding frame is provided with an extending portion. By setting the extending portion, a first extreme point, a second extreme point and a third extreme point of the quality factor of the piezoelectric film bulk acoustic resonator are obviously larger than those of the related art.Type: ApplicationFiled: June 13, 2023Publication date: August 8, 2024Inventors: Zhang Zhang, Shuai Yang, Ke Wu, Zhiqiang Zhuang, Lirong Zhang, Chao Wang
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Publication number: 20240267025Abstract: The present invention provides a FBAR, which includes a substrate, an acoustic reflector, a first electrode, a piezoelectric layer, a second electrode, and an etch-stop layer. The acoustic reflector is arranged on the substrate, the first electrode is arranged on a side of the substrate and covers the acoustic reflector, and at least a part of the piezoelectric layer is arranged on a side of the first electrode away from the substrate. The second electrode is arranged on a side of the piezoelectric layer away from the first electrode, and the etch-stop layer is arranged on a side of the second electrode away from the piezoelectric layer. The FBAR further includes at least two stacked components. At least an edge of each of the at least two stacked components is misaligned. The quality factor of the FBAR in the present invention is relatively high.Type: ApplicationFiled: August 28, 2023Publication date: August 8, 2024Inventors: Zhang Zhang, Shuai Yang, Ke Wu, Zhiqiang Zhuang, Lirong Zhang, Chao Wang
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Publication number: 20230170874Abstract: The present invention provides a piezoelectric film acoustic resonator, which comprises a substrate, a first electrode disposed over the substrate, a piezoelectric film disposed over the substrate and covering at least a portion of the first electrode and a second electrode disposed on a surface of the piezoelectric film away from the first electrode, one end of the first electrode extends in the direction away from the piezoelectric film to form a first extended pad, one end of the second electrode extends in the direction away from the first extended pad to form a second extended pad, the first extended pad comprises a first protruding reflection grating on the surface away from the substrate, the second extended pad comprises a second protruding reflection grating on the surface away from the substrate. The configuration can reduce the impact on acoustic performance while improving the quality factor.Type: ApplicationFiled: December 31, 2021Publication date: June 1, 2023Inventors: Shuai Yang, Lirong Zhang, Ke Wu, Zhiqiang Zhuang, Chao Wang
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Patent number: 11316278Abstract: The invention provides a mobile terminal, a glass housing, and a performance optimization method of an antenna module of the mobile terminal. The mobile terminal is internally provided with the antenna module. The glass housing includes a radiation zone facing the antenna module and a non-radiation zone adjacent to the radiation zone. The glass shape of the radiation zone and the glass shape of the non-radiation zone are of discontinuity. The glass housing of the mobile terminal provided by the invention can optimize performance of the antenna module.Type: GrantFiled: August 11, 2020Date of Patent: April 26, 2022Assignee: AAC Technologies Pte. Ltd.Inventors: Jing Wu, Chao Wang, Zhiqiang Zhuang, Ke Hua
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Patent number: 11290582Abstract: A mobile terminal includes a display screen, an internal support unit, an antenna module and a rear shell. The display screen cooperates with the rear shell to form a cavity therebetween. The internal support unit is located in the cavity for fixing and supporting components. The antenna module is located in the cavity and at a position close to a sidewall of the rear shell, and is fixed and supported by the internal support unit. The internal support unit defines a through hole to form a unobstructed signal channel between the antenna module and the side of the internal support unit closest to the rear shell, optimizing a performance of the antenna module, realizing a broadband phased array module with better spatial coverage in a limited space, optimizing the direction of the antenna module, improving the gain and coverage of the antenna module, and optimizing the CDF index.Type: GrantFiled: August 13, 2020Date of Patent: March 29, 2022Assignee: AAC Technologies Pte. Ltd.Inventors: Chao Wang, Zhiqiang Zhuang
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Publication number: 20200412006Abstract: The invention provides a mobile terminal, a glass housing, and a performance optimization method of an antenna module of the mobile terminal. The mobile terminal is internally provided with the antenna module. The glass housing includes a radiation zone facing the antenna module and a non-radiation zone adjacent to the radiation zone. The glass shape of the radiation zone and the glass shape of the non-radiation zone are of discontinuity. The glass housing of the mobile terminal provided by the invention can optimize performance of the antenna module.Type: ApplicationFiled: August 11, 2020Publication date: December 31, 2020Inventors: Jing Wu, Chao Wang, Zhiqiang Zhuang, Ke Hua
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Publication number: 20200412849Abstract: A mobile terminal includes a display screen, an internal support unit, an antenna module and a rear shell. The display screen cooperates with the rear shell to form a cavity therebetween. The internal support unit is located in the cavity for fixing and supporting components. The antenna module is located in the cavity and at a position close to a sidewall of the rear shell, and is fixed and supported by the internal support unit. The internal support unit defines a through hole to form a unobstructed signal channel between the antenna module and the side of the internal support unit closest to the rear shell, optimizing a performance of the antenna module, realizing a broadband phased array module with better spatial coverage in a limited space, optimizing the direction of the antenna module, improving the gain and coverage of the antenna module, and optimizing the CDF index.Type: ApplicationFiled: August 13, 2020Publication date: December 31, 2020Inventors: Chao Wang, Zhiqiang Zhuang