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公开(公告)号：US11380370B2
公开(公告)日：2022-07-05
申请号：US16646503
申请日：2017-09-22
Applicant: Micron Technology, Inc.
IPC: G11C5/14 , G11C11/4074 , G11C16/30 , H02M3/07
Abstract: Apparatus and methods that have a semiconductor charge pump can be implemented in a variety of applications. Such a charge pump can have a charge pump unit core that includes a pump section and a single passgate coupled to the pump section to transfer charge, where the single passgate is a n-channel metal-oxide semiconductor (NMOS) transistor coupled directly to an input and an output of the charge pump unit core. The transfer of charge can be based on a set of clock signals. Additional apparatus, systems, and methods are disclosed.
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公开(公告)号：US10943636B1
公开(公告)日：2021-03-09
申请号：US16546152
申请日：2019-08-20
Applicant: MICRON TECHNOLOGY, INC.
IPC: G11C7/00 , G11C11/406 , G11C11/408
Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for analog row access tracking. A plurality of unit cells are provided, each of which contains one or more analog circuits used to track accesses to a portion of the wordlines of a memory device. When a wordline in the portion is accessed, the unit cell may update an accumulator voltage, for example by adding charge to a capacitor. A comparator circuit may determine when one or more accumulator voltages cross a threshold (e.g., a reference voltage). Responsive to the accumulator voltage crossing the threshold, an aggressor address may be loaded in a targeted refresh queue, or if the aggressor address is already in the queue, a priority flag associated with that address may be set. Aggressor addresses may be provided to have their victims refreshed in an order based on the number of set priority flags.
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公开(公告)号：US10833630B2
公开(公告)日：2020-11-10
申请号：US16225678
申请日：2018-12-19
Applicant: MICRON TECHNOLOGY, INC.
IPC: H03B5/04 , G11C7/10 , G11C11/406 , H03K3/03 , H03K4/502 , H03K3/0231 , H03K3/011 , H03B5/24 , H03L1/02
Abstract: Apparatuses and methods for temperature independent oscillator circuits are disclosed herein. An example apparatus may include a pulse generator circuit configured to provide a periodic pulse based on the charging and discharging and discharging of a capacitor and further based on a reference voltage. The pulse generator circuit may include a capacitor coupled between a first reference voltage and a first node, wherein the capacitor is configured to be charged and discharged through the node in response to the periodic pulse, a resistor and a diode coupled in series between a second node and a second reference voltage, and a comparator coupled to the first and second nodes and configured to provide the periodic pulse based on voltages on the first and second nodes, wherein a period of the periodic pulse is based at least on the resistor and the a current.
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公开(公告)号：US10446195B2
公开(公告)日：2019-10-15
申请号：US15312010
申请日：2016-06-29
Applicant: MICRON TECHNOLOGY, INC.
IPC: G11C11/00 , H03F1/30 , G11C11/16 , G05F3/02 , G05F3/16 , G11C17/18 , G01R19/00 , H03K3/012 , G11C5/14 , G11C29/02 , G05F1/575 , G05F1/595
Abstract: Disclosed are apparatuses and methods for controlling gate-induced drain leakage current in a transistor device. An apparatus may include a first biasing circuit stage configured to provide a biasing voltage on a biasing signal line, the biasing voltage based on a current through a first resistor associated with the first biasing circuit stage, a voltage generation circuit stage coupled to the first biasing circuit stage, the voltage generation circuit stage having an output transistor that is coupled to the biasing signal line through a gate terminal of the output transistor, and an output line coupled to the voltage generation circuit stage and configured to provide an output voltage signal having a steady-state voltage that is less than a power supply voltage by an amount that corresponds to a voltage drop across the first resistor associated with the first biasing circuit stage.
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公开(公告)号：US20190094900A1
公开(公告)日：2019-03-28
申请号：US16203215
申请日：2018-11-28
Applicant: Micron Technology, Inc.
IPC: G05F3/26
Abstract: A reference voltage generator is disclosed that may provide a plurality of reference voltages. A reference voltage generator may include a voltage divider, a multiplexer coupled to the voltage divider, an operational amplifier that may receive a voltage from the multiplexer, and a plurality of resistors that may receive an output from the operational amplifier. The reference voltages may be provided from output terminals coupled to the resistors. A reference voltage generator may include a voltage divider, two multiplexers coupled to the voltage divider, an operational amplifier coupled to each multiplexer, and a plurality of resistors coupled between the outputs of the two operational amplifiers. Reference voltages may be provided from output terminals coupled to the resistors.
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Patent Agency Ranking
公开(公告)号：US10171032B2
公开(公告)日：2019-01-01
申请号：US14785823
申请日：2015-09-02
Applicant: Micron Technology, Inc.
IPC: H03K3/0231 , H03B5/04 , G11C7/10 , G11C11/406 , H03K3/03 , H03K4/502 , H03K3/011 , H03B5/24 , H03L1/02
Abstract: Apparatuses and methods for temperature independent oscillator circuits are disclosed herein. An example apparatus may include a pulse generator circuit configured to provide a periodic pulse based on the charging and discharging of a capacitor and further based on a reference voltage. The pulse generator circuit may include a capacitor coupled between a first reference voltage and a first node, wherein the capacitor is configured to be charged and discharged through the node in response to the periodic pulse, a resistor and a diode coupled in series between a second node and a second reference voltage, and a comparator coupled to the first and second nodes and configured to provide the periodic pulse based on voltages on the first and second nodes, wherein a period of the periodic pulse is based at least on the resistor and the a current.
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公开(公告)号：US10162377B2
公开(公告)日：2018-12-25
申请号：US15117681
申请日：2016-06-06
Applicant: Micron Technology, Inc.
IPC: G05F3/26
Abstract: A reference voltage generator is disclosed that may provide a plurality of reference voltages. A reference voltage generator may include a voltage divider, a multiplexer coupled to the voltage divider, an operational amplifier that may receive a voltage from the multiplexer, and a plurality of resistors that may receive an output from the operational amplifier. The reference voltages may be provided from output terminals coupled to the resistors. A reference voltage generator may include a voltage divider, two multiplexers coupled to the voltage divider, an operational amplifier coupled to each multiplexer, and a plurality of resistors coupled between the outputs of the two operational amplifiers. Reference voltages may be provided from output terminals coupled to the resistors.
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公开(公告)号：US20180226107A1
公开(公告)日：2018-08-09
申请号：US15312010
申请日：2016-06-29
Applicant: MICRON TECHNOLOGY, INC.
CPC classification number: G11C5/147 , G05F1/575 , G05F1/595 , G11C5/14 , G11C29/021 , G11C29/028
Abstract: Disclosed are apparatuses and methods for controlling gate-induced drain leakage current in a transistor device. An apparatus may include a first biasing circuit stage configured to provide a biasing voltage on a biasing signal line, the biasing voltage based on a current through a first resistor associated with the first biasing circuit stage, a voltage generation circuit stage coupled to the first biasing circuit stage, the voltage generation circuit stage having an output transistor that is coupled to the biasing signal line through a gate terminal of the output transistor, and an output line coupled to the voltage generation circuit stage and configured to provide an output voltage signal having a steady-state voltage that is less than a power supply voltage by an amount that corresponds to a voltage drop across the first resistor associated with the first biasing circuit stage.
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公开(公告)号：US09503019B2
公开(公告)日：2016-11-22
申请号：US14986478
申请日：2015-12-31
Applicant: MICRON TECHNOLOGY, INC.
CPC classification number: H03B5/24 , H03B5/04 , H03B9/141 , H03L1/00 , H03L7/0891
Abstract: Apparatuses and methods are disclosed for oscillators that are substantially insensitive to supply voltage variations. In one such example apparatus, a capacitance circuit is configured to be charged and discharged. Charging and discharging circuits are coupled to the capacitance circuit and configured to charge and discharge, respectively, the capacitance circuit by charging and discharging currents responsive to charge and discharge signals. A control circuit is coupled to the charging circuit and the discharging circuit, and is configured to provide the charge and discharge signals responsive to a voltage of the capacitance circuit, and is further configured to provide an oscillation signal responsive to the voltage of the capacitance circuit. The charging current, the discharging current, or both the charging and discharging currents are proportional to a difference between a first reference voltage and a second reference voltage.
Abstract translation: 公开了对电源电压变化基本上不敏感的振荡器的装置和方法。 在一个这样的示例性装置中，电容电路被配置为被充电和放电。 充电和放电电路耦合到电容电路并且被配置为通过响应于充电和放电信号的充电和放电电流对电容电路进行充电和放电。 控制电路耦合到充电电路和放电电路，并且被配置为响应于电容电路的电压来提供充电和放电信号，并且还被配置为提供响应于电容电路的电压的振荡信号 。 充电电流，放电电流或充电和放电电流都与第一参考电压和第二参考电压之间的差成比例。
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公开(公告)号：US20160118937A1
公开(公告)日：2016-04-28
申请号：US14986478
申请日：2015-12-31
Applicant: MICRON TECHNOLOGY, INC.
CPC classification number: H03B5/24 , H03B5/04 , H03B9/141 , H03L1/00 , H03L7/0891
Abstract: Apparatuses and methods are disclosed for oscillators that are substantially insensitive to supply voltage variations. In one such example apparatus, a capacitance circuit is configured to be charged and discharged. Charging and discharging circuits are coupled to the capacitance circuit and configured to charge and discharge, respectively, the capacitance circuit by charging and discharging currents responsive to charge and discharge signals. A control circuit is coupled to the charging circuit and the discharging circuit, and is configured to provide the charge and discharge signals responsive to a voltage of the capacitance circuit, and is further configured to provide an oscillation signal responsive to the voltage of the capacitance circuit. The charging current, the discharging current, or both the charging and discharging currents are proportional to a difference between a first reference voltage and a second reference voltage.
Abstract translation: 公开了对电源电压变化基本上不敏感的振荡器的装置和方法。 在一个这样的示例性装置中，电容电路被配置为被充电和放电。 充电和放电电路耦合到电容电路并且被配置为通过响应于充电和放电信号的充电和放电电流对电容电路进行充电和放电。 控制电路耦合到充电电路和放电电路，并且被配置为响应于电容电路的电压来提供充电和放电信号，并且还被配置为提供响应于电容电路的电压的振荡信号 。 充电电流，放电电流或充电和放电电流都与第一参考电压和第二参考电压之间的差成比例。
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