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公开(公告)号：US20160055980A1
公开(公告)日：2016-02-25
申请号：US14779542
申请日：2014-04-02
Applicant: CAVENDISH KINETICS, INC
Inventor： Richard L. KNIPE , Robertus Petrus VAN KAMPEN
CPC classification number: H01G5/18 , B81B3/0051 , B81B3/007 , B81B2201/0221 , H01G5/011 , H01G5/0136 , H01G5/16 , H01H59/0009 , H01H2059/0072
Abstract: The present invention generally relates to a MEMS DVC and a method for fabrication thereof. The MEMS DVC comprises a plate movable from a position spaced a first distance from an RF electrode and a second position spaced a second distance from the RF electrode that is less than the first distance. When in the second position, the plate is spaced from the RF electrode by a dielectric layer that has an RF plateau over the RF electrode. One or more secondary landing contacts and one or more plate bend contacts may be present as well to ensure that the plate obtains a good contact with the RF plateau and a consistent C max value can be obtained. On the figure PB contact is the plate bend contact, SL contact is the Second Landing contact and the PD electrode is the Pull Down electrode.
Abstract translation: 本发明一般涉及一种MEMS DVC及其制造方法。 MEMS DVC包括可从距离RF电极间隔第一距离的位置移动的板和距离RF电极间隔第二距离的第二位置小于第一距离的板。 当处于第二位置时，板通过在RF电极上具有RF平台的电介质层与RF电极间隔开。 还可以存在一个或多个次级着陆触点和一个或多个板弯曲触点，以确保该板获得与RF平台的良好接触，并且可以获得一致的C max值。 在图中，PB接触是板弯接触，SL接触是第二着陆接触，PD电极是下拉电极。
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公开(公告)号：US11417487B2
公开(公告)日：2022-08-16
申请号：US16343912
申请日：2017-09-14
Applicant: CAVENDISH KINETICS, INC.
Inventor： Richard L. Knipe , Robertus Petrus Van Kampen , James Douglas Huffman , Lance Barron
Abstract: The present disclosure generally relates to the design of a MEMS ohmic switch which provides for a low-impact landing of the MEMS device movable plate on the RF contact and a high restoring force for breaking the contacts to improve the lifetime of the switch. The switch has at least one contact electrode disposed off-center of the switch device and also has a secondary landing post disposed near the center of the switch device. The secondary landing post extends to a greater height above the substrate as compared to the RF contact of the contact electrode so that the movable plate contacts the secondary landing post first and then gently lands on the RF contact. Upon release, the movable plate will disengage from the RF contact prior to disengaging from the secondary landing post and have a longer lifetime due to the high restoring force.
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公开(公告)号：US10964505B2
公开(公告)日：2021-03-30
申请号：US15772132
申请日：2016-11-15
Applicant: CAVENDISH KINETICS, INC.
Inventor： Robertus Petrus Van Kampen , Lance Barron , Roberto Gaddi , Richard L. Knipe
Abstract: The present disclosure generally relates to a MEMS device for reducing ESD. A contacting switch is used to ensure that there is a closed electrical contact between two electrodes even if there is no applied bias voltage.
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公开(公告)号：US10749247B2
公开(公告)日：2020-08-18
申请号：US16342935
申请日：2017-10-18
Applicant: CAVENDISH KINETICS, INC.
Inventor： Paul Anthony Tornatta, Jr. , Young Joong Lee , Hak Ryol Kim
Abstract: The present disclosure generally relates to any device capable of wireless communication, such as a mobile telephone or wearable device, having one or more antennas. The antenna has a structure with multiple resonances to cover all commercial wireless communications bands from a single antenna with one feed connection to the main radio system. The antenna is usable where there are two highly efficient, closely spaced resonances in the lower part of the frequency band. One of those resonances can be adjusted in real time by using a variable reactance attached to the radiator while the other resonance is fixed.
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公开(公告)号：US10566163B2
公开(公告)日：2020-02-18
申请号：US15770705
申请日：2016-11-15
Applicant: CAVENDISH KINETICS, INC.
Inventor： Robertus Petrus Van Kampen , Richard L. Knipe , Mickael Renault , Shibajyoti Ghosh Dastider , Jacques Marcel Muyango
Abstract: A MEMS switch contains an RF electrode 102, pull-down electrodes 104 and anchor electrodes 108 located on a substrate 101. A plurality of islands 226 are provided in the pull-down electrode and electrically isolated therefrom. On top of the RF electrode is the RF contact 206 to which the MEMS-bridge 212, 214 forms an ohmic contact in the pulled-down state. The pull-down electrodes 104 are covered with a dielectric layer 202 to avoid a short-circuit between the bridge and the pull-down electrode. Contact stoppers 224 are disposed on the dielectric layer 202 at locations corresponding to the islands 226, and the resulting gap between the bridge and the dielectric layer in the pulled-down state reduces dielectric charging. In alternative embodiments, the contact stoppers are provide within the dielectric layer 202 or disposed on the islands themselves and under the dielectric layer. The switch provides good controllability of the contact resistance of MEMS switches over a wide voltage operating range.
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Patent Agency Ranking
公开(公告)号：US20200044309A1
公开(公告)日：2020-02-06
申请号：US16342935
申请日：2017-10-18
Applicant: CAVENDISH KINETICS, INC.
Inventor： Paul Anthony TORNATTA, Jr. , Young Joong LEE , Hak Ryol KIM, Jr.
Abstract: The present disclosure generally relates to any device capable of wireless communication, such as a mobile telephone or wearable device, having one or more antennas. The antenna has a structure with multiple resonances to cover all commercial wireless communications bands from a single antenna with one feed connection to the main radio system. The antenna is usable where there are two highly efficient, closely spaced resonances in the lower part of the frequency band. One of those resonances can be adjusted in real time by using a variable reactance attached to the radiator while the other resonance is fixed.
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公开(公告)号：US10301173B2
公开(公告)日：2019-05-28
申请号：US14914071
申请日：2014-08-27
Applicant: CAVENDISH KINETICS, INC.
Inventor： Mickael Renault
Abstract: The present invention generally relates to an RF MEMS DVC and a method for manufacture thereof. To ensure that undesired grain growth does not occur and contribute to an uneven RF electrode, a multilayer stack comprising an AlCu layer and a layer containing titanium may be used. The titanium diffuses into the AlCu layer at higher temperatures such that the grain growth of the AlCu will be inhibited and the switching element can be fabricated with a consistent structure, which leads to a consistent, predictable capacitance during operation.
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公开(公告)号：US20190066957A1
公开(公告)日：2019-02-28
申请号：US15770698
申请日：2016-11-14
Applicant: CAVENDISH KINETICS, INC.
Inventor： Robertus Petrus VAN KAMPEN , Richard L. KNIPE
IPC: H01H59/00
Abstract: The present disclosure generally relates to a mechanism for making a MEMS switch that can switch large electrical powers. Extra landing electrodes are employed that provide added electrical contact along the MEMS device so that when in contact current and heat are removed from the MEMS structure close to the hottest points.
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39.发明申请公开(公告)号：US20180277960A1
公开(公告)日：2018-09-27
申请号：US15571234
申请日：2016-05-18
Applicant: CAVENDISH KINETICS, INC.
Inventor： Lars Ernst JOHNSSON , Ray PARKHURST , Paul Anthony TORNATTA, JR. , Roberto GADDI , Chenhui NIU
CPC classification number: H01Q19/027 , H01Q1/243 , H04B1/0458 , H04B1/0475
Abstract: The present disclosure generally relates to any device capable of wireless communication, such as a mobile telephone or wearable device, having one or more antennas. By applying a variable reactance (capacitive or inductive component) antenna aperture tuner within a simple, scalar antenna aperture tuning system, the maintenance of a constant antenna resonant frequency in the presence of environmental changes or head/hand effects is obtained. The variable reactance is used to adjust the resonant frequency of the antenna to stay at the desired target frequency in response to external variables that would otherwise shift the resonance away from the operating frequency of the device. Adjusting the resonant frequency of the antenna in response to externally induced changes maintains the radiating efficiency of the antenna and simultaneously avoids impedance mismatch between the antenna and the respective transmit/receive path in the radio, thereby minimizing transmission losses.
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40.发明授权公开(公告)号：US10029909B2
公开(公告)日：2018-07-24
申请号：US14895182
申请日：2014-05-30
Applicant: CAVENDISH KINETICS, INC.
Inventor： Robertus Petrus Van Kampen
Abstract: The present invention generally relates to a MEMS DVC. The MEMS DVC has an RF electrode and is formed above a CMOS substrate. To reduce noise in the RF signal, a poly-resistor that is connected between a waveform controller and the electrodes of the MEMS element, may be surrounded by an isolated p-well or an isolated n-well. The isolated well is coupled to an RF ground shield that is disposed between the poly-resistor and the MEMS element. Due to the presence of the isolated well that surrounds the poly-resistor, the substrate resistance does not influence the dynamic behavior of each MEMS element in the MEMS DVC and noise in the RF signal is reduced.
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