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公开(公告)号：US20220344833A1
公开(公告)日：2022-10-27
申请号：US17656721
申请日：2022-03-28
摘要： Apparatus and methods for antenna arrays with staggered rows of antennas for dual frequency operation are provided. In certain embodiments, a mobile device includes a front-end system including a plurality of radio frequency signal conditioning circuits, an antenna array that includes a plurality of antenna elements including a first row of antenna elements and a second row of antenna elements that are staggered, a plurality of switches coupled between the plurality of radio frequency signal conditioning circuits and the antenna array, and a control circuit configured to control a selection of the plurality of antenna elements by the plurality of switches.
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公开(公告)号：US11444026B2
公开(公告)日：2022-09-13
申请号：US16861028
申请日：2020-04-28
发明人： Bo Zhou , Guillaume Alexandre Blin
IPC分类号： H01L23/525 , G11C17/16 , H04B1/40 , G11C17/18
摘要： Circuits, methods, and devices for protecting against accidental fuse programming are discussed herein. For example, a fuse circuit may include a first switch electrically connected to a first point, a fuse electrically connected in series with the first switch, a first biasing circuit to control the first switch to enable programming of the fuse in response to a fuse programming event, a second switch electrically connected in series with the fuse between the fuse and a second point, and a second biasing circuit to control the second switch to enable programming of the fuse in response to the fuse programming event.
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公开(公告)号：US11217581B2
公开(公告)日：2022-01-04
申请号：US16915699
申请日：2020-06-29
IPC分类号： H01L27/088 , H01L29/423 , H03K17/687 , H04B1/40 , H01L29/417 , H03K17/693 , H01L21/8234 , H03K17/10 , H04B1/04 , H04B1/00 , H01L23/538 , H01L29/78 , H01L29/786
摘要： Devices and methods for layout-dependent voltage handling improvement in switch stacks. In some embodiments, a switching device can include a first terminal and a second terminal, a radio-frequency signal path implemented between the first terminal and the second terminal, and a plurality of switching elements connected in series to form a stack between the second terminal and ground. The stack can have an orientation relative to the radio-frequency signal path, and the switching elements can have a non-uniform distribution of a first parameter based in part on the orientation of the stack.
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公开(公告)号：US20210203322A1
公开(公告)日：2021-07-01
申请号：US17122166
申请日：2020-12-15
IPC分类号： H03K17/687 , H03K17/06
摘要： A radio frequency signal switch assembly including a signal input and a signal output, a first control input configured to receive a control signal, a first switch including a first plurality of transistors coupled between the signal input and the signal output, each transistor of the first plurality of transistors having a gate, a drain, and a source, a first common resistor coupled between the first control input and the gate of one transistor of the first plurality of transistors, and a first plurality of gate resistors coupled between the gates of the first plurality of transistors, each gate resistor being coupled between the gates of two adjacent transistors.
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公开(公告)号：US10447151B2
公开(公告)日：2019-10-15
申请号：US14928052
申请日：2015-10-30
发明人： Bo Zhou , Guillaume Alexandre Blin
摘要： Circuits, devices, and methods for operating a charge pump. In some implementations, a charge pump module includes a clock circuit configured generate to a first clock signal and a second clock signal, the first clock signal having a lower frequency than the second clock signal. The charge pump module also includes a driving circuit configured to generate a first set of clock signals based on the first clock signal and a second set of clock signals based on the second clock signal, the driving circuit coupled to the clock circuit. The charge pump module further includes a charge pump core including a set of capacitances, the charge pump core configured to charge the set of capacitances based the first set of clock signals and the second set of clock signals.
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公开(公告)号：US20190180833A1
公开(公告)日：2019-06-13
申请号：US16280489
申请日：2019-02-20
发明人： Bo Zhou , Guillaume Alexandre Blin
IPC分类号： G11C17/18 , H01L23/525 , G11C17/16 , H01L27/112 , H01L23/00 , G11C7/24
摘要： Apparatus and methods for protection against inadvertent programming of fuse cells are provided herein. In certain configurations, a packaged radio frequency module includes a package substrate and a semiconductor die attached to the packaged substrate. The semiconductor die includes a power supply pad, a fuse, a fuse programming transistor having a source electrically connected to the power supply pad and a gate configured to receive a fuse programming signal, a cascode transistor electrically connected between a drain of the fuse programming transistor and the fuse, and a fuse protection capacitor electrically connected between the power supply pad and a gate of the cascode transistor and operable to inhibit unintended programming of the fuse.
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公开(公告)号：US10284200B2
公开(公告)日：2019-05-07
申请号：US16043014
申请日：2018-07-23
IPC分类号： H03K19/00 , H03K17/693
摘要： A process for fabricating a semiconductor die involves providing a semiconductor substrate, forming a first field-effect transistor on the semiconductor substrate, the first field-effect transistor having a source, a drain, a gate, and a body, forming a coupling path that couples the body of the first field-effect transistor to the gate of the first field-effect transistor, the coupling path including a diode, and forming an adjustable impedance network coupled between the body of the first field-effect transistor and a ground reference, the adjustable impedance network being configured to reduce radio-frequency distortion in the first field-effect transistor.
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公开(公告)号：US20180336955A1
公开(公告)日：2018-11-22
申请号：US15984666
申请日：2018-05-21
发明人： Bo Zhou , Guillaume Alexandre Blin
CPC分类号： G11C17/18 , G11C17/165
摘要： Systems and methods are directed to an integrated circuit to sense a state of a fuse having one of a blown state and an unblown state. The integrated circuit includes a fuse sensing circuit having an input and a plurality of outputs, the input being configured to receive a sense signal having a first state and a second state, and the plurality of outputs including a first output to connect to a first contact of the fuse, a second output to provide a first signal indicative of the state of the fuse, and a third output to provide a second signal indicative of the state of the fuse, the fuse sensing circuit being configured to provide the first and second signals responsive to a change in state of the sense signal, and a latch circuit having a first input to receive the first signal, a second input to receive the second signal, and an output to provide an output signal indicative of the state of the fuse, the latch circuit being configured to store and maintain a value of the output signal.
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公开(公告)号：US20180158533A1
公开(公告)日：2018-06-07
申请号：US15798786
申请日：2017-10-31
发明人： Bo Zhou , Guillaume Alexandre Blin
IPC分类号： G11C17/18 , G11C17/16 , H01L27/02 , H01L27/112
CPC分类号： G11C17/18 , G11C17/16 , H01L27/0248 , H01L27/11206
摘要： Apparatus and methods for protection against inadvertent programming of fuse cells are provided herein. In certain configurations, a fuse system includes a fuse protection diode, a fuse programming transistor, and a fuse cell electrically connected in series between a first pad and a second pad. The fuse system further includes a bias generator that biases a gate of the fuse programming transistor to control an amount of current provided to the fuse cell. The fuse protection diode helps prevent inadvertent programming of the fuse cell by blocking current from flowing through the fuse cell in response to a decrease in voltage of the first pad relative to the second pad.
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40.发明授权公开(公告)号：US09741653B2
公开(公告)日：2017-08-22
申请号：US14487063
申请日：2014-09-15
发明人： Ambarish Roy , Guillaume Alexandre Blin , Yu Zhu
IPC分类号： H01L29/417 , H01L23/50 , H01L29/06 , H01L29/78 , H01L29/423 , H01L23/482 , H01L27/12 , H01L29/778
CPC分类号： H01L23/50 , H01L23/4825 , H01L27/1203 , H01L29/0696 , H01L29/41758 , H01L29/4238 , H01L29/778 , H01L29/78 , H01L2224/48091 , H01L2224/48227 , H01L2924/15184 , H01L2924/15192 , H01L2924/181 , H01L2924/00012 , H01L2924/00014
摘要： Devices and methods related to radio-frequency (RF) switches having reduced-resistance metal layout. In some embodiments, a field-effect transistor (FET) based RF switch device can include a plurality of fingers arranged in an interleaved configuration such that a first group of the fingers are electrically connected to a source contact and a second group of the fingers are electrically connected to a drain contact. At least some of the fingers can have a current carrying capacity that varies as a function of location along a direction in which the fingers extend. Such a configuration of the fingers can desirably reduce the on-resistance (Ron) of the FET based RF switch device.
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