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公开(公告)号：US09692398B2
公开(公告)日：2017-06-27
申请号：US14417105
申请日：2014-08-25
Applicant: Micron Technology, Inc.
Inventor： Wei Lu Chu
CPC classification number: H03K3/356 , G11C7/1084 , G11C29/50 , G11C2029/5004 , H03F3/347
Abstract: An apparatuses and methods for buffering a voltage from a circuit without current drive ability are described. An example apparatus includes a voltage buffer that includes two identical stages. The first stage is configured to receive an input voltage and produce an intermediate voltage as an output. The second stage is configured to receive the intermediate voltage and provide an output voltage that is equal to the input voltage. The voltage buffer may be coupled to a current source. The second stage of the voltage buffer may have current drive ability.
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公开(公告)号：US12224724B2
公开(公告)日：2025-02-11
申请号：US17377148
申请日：2021-07-15
Applicant: Micron Technology, Inc.
Inventor： Wei Lu Chu
IPC: H03F3/45
Abstract: An amplifier may include multiple transistors with two transistors having their gates tied together via a common connection. The amplifier may utilize a local common mode feedback resistor as part of the amplifier. The local common mode feedback resistor may be coupled between the common connection and respective terminals of two transistors of multiple transistors. The local common mode feedback resistor may include a group of resistors coupled in series. The local common mode feedback resistor may also include a metal oxide semiconductor (MOS) resistor coupled in parallel with one or more of the first group of resistors. In the local common mode feedback, the first MOS resistor provides different levels of resistance to different process corners to reduce overshoot when the amplifier is enabled.
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公开(公告)号：US20230410877A1
公开(公告)日：2023-12-21
申请号：US17844207
申请日：2022-06-20
Applicant: Micron Technology, Inc.
Inventor： Wei Lu Chu , Dong Pan
IPC: G11C11/4074
CPC classification number: G11C11/4074 , G11C11/4076
Abstract: A device includes source circuitry comprising a first portion of a current mirror and a first transistor. The device also includes load circuitry comprising a second portion of the current mirror and a second transistor, wherein the load circuitry is disposed at a distance from the source circuitry. The device further includes a path coupled to a first gate of the first transistor and to a second gate of the second transistor, wherein the path provides a predetermined voltage to both of the first gate of the first transistor and to the second gate of the second transistor.
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公开(公告)号：US11804832B2
公开(公告)日：2023-10-31
申请号：US17514785
申请日：2021-10-29
Applicant: Micron Technology, Inc.
Inventor： Mishal Kumar , Wei Lu Chu
IPC: G11C5/00 , H03K17/10 , H03K17/687 , H03K17/732 , G11C5/14 , H03K17/30
CPC classification number: H03K17/102 , G11C5/144 , G11C5/148 , H03K17/302 , H03K17/6871 , H03K17/732 , H03K2217/0036
Abstract: Embodiments herein relate to protection of a standby amplifier of a memory device. Specifically, an input voltage of the standby amplifier may be reduced to decrease an occurrence of damage to the standby amplifier or components thereof. In some embodiments, the input voltage may be reduced using a voltage divider that provides the reduced input voltage to the standby amplifier during a power up operation. Upon completion of the power up operation, the input voltage of the standby amplifier may return to an operating voltage. The reduced input voltage may reduce the occurrence of damage to the standby amplifier by maintaining a gate to drain voltage of one or more transistors of the standby amplifier below a maximum.
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公开(公告)号：US20230318536A1
公开(公告)日：2023-10-05
申请号：US17711183
申请日：2022-04-01
Applicant: Micron Technology, Inc.
Inventor： Zhi Qi Huang , Wei Lu Chu
CPC classification number: H03F1/308 , H03F3/21 , H03F3/45273 , H03F3/265
Abstract: An amplifier includes a first stage and a second stage. The first stage includes a floating current source to maintain current within a threshold. The first stage also includes a local common mode feedback configured to provide gain to an input signal. Moreover, the second stage includes a driver that provides a load current to a load coupled to the amplifier.
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Patent Agency Ranking
公开(公告)号：US11721387B2
公开(公告)日：2023-08-08
申请号：US17864237
申请日：2022-07-13
Applicant: Micron Technology, Inc.
Inventor： Wei Lu Chu , Dong Pan
IPC: G11C7/14 , G11C11/4074 , G11C11/4091 , H03H7/06 , G11C5/14 , G05F1/575 , G11C11/4063
CPC classification number: G11C11/4074 , G05F1/575 , G11C5/147 , G11C7/14 , G11C11/4063 , G11C11/4091 , H03H7/06
Abstract: Methods, systems, and devices for compensating for kickback noise are described. A regulator may include an input circuit, a bias circuit, and an enable circuit. The regulator may be configured so that the enable circuit is positioned between the input circuit and the bias circuit. A balance resistor may be included in a path between an input of the regulator and a gate of a bias transistor included in the bias transistor. A size of the balance resistor may be based on an amount of charge drawn by the bias transistor during an activation event. Dimensions of the bias transistor may be modified based on an amount of charge drawn by the bias transistor during an activation event.
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公开(公告)号：US20230044187A1
公开(公告)日：2023-02-09
申请号：US17393597
申请日：2021-08-04
Applicant: Micron Technology, Inc.
Inventor： Zhi Qi Huang , Wei Lu Chu
IPC: G11C11/4074 , H03F3/45 , G05F3/26
Abstract: A memory device includes a voltage generator configured to generate a reference voltage for transmission to at least one component of the memory device. The voltage generator includes a first input to receive a first signal having a first voltage value. The voltage generator also includes a second input to receive a second signal having a second voltage value. The voltage generator further includes a first circuit configured to generate third voltage and a second circuit coupled to the first circuit to receive the third voltage value, wherein the second circuit receives the first signal and the second signal and is configured to utilize the third voltage value to facilitate comparison of the first voltage value and the second voltage value to generate an output voltage.
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公开(公告)号：US11545940B2
公开(公告)日：2023-01-03
申请号：US17243762
申请日：2021-04-29
Applicant: Micron Technology, Inc.
Inventor： Wei Lu Chu , Dong Pan
Abstract: Devices and methods include voltage buses. The devices also include one or more power amplifiers coupled to the voltage bus. Each of the one or more power amplifiers include one or more transistors. The devices also include a model that is configured to emulate leakage from at least one of the one or more transistors. A current mirror with a first transistor coupled to the model and a second transistor coupled to the voltage bus. The current mirror is configure to draw charge from the voltage bus based at least in part on the emulated leakage from the model.
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公开(公告)号：US10897244B1
公开(公告)日：2021-01-19
申请号：US16545384
申请日：2019-08-20
Applicant: MICRON TECHNOLOGY, INC.
Inventor： Zhi Qi Huang , Wei Lu Chu , Dong Pan
Abstract: Apparatus and methods are described for voltage dependent delay. An example apparatus includes an oscillator including a delay circuit that is configured to provide an oscillating output signal has a delay based on a delay of the delay circuit. The delay of the delay circuit is based on a voltage it receives. For example, the delay of the delay circuit increases for an increasing received voltage and decreases for a decreasing received voltage. As a result, the oscillating output signal provided by the oscillator is based on the received voltage. For example, a frequency of the oscillating output signal decreases for increasing received voltage and increases for decreasing received voltage. Described in another way, the frequency of the oscillating output signal is relatively low for relatively high received voltage and relatively high for relatively low received voltage.
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公开(公告)号：US10678284B2
公开(公告)日：2020-06-09
申请号：US16053765
申请日：2018-08-02
Applicant: MICRON TECHNOLOGY, INC.
Inventor： Wei Lu Chu
Abstract: Apparatuses and methods for providing a current independent of temperature are described. An example apparatus includes a current generator that includes two components that are configured to respond equally and opposite to changes in temperature. The responses of the two components may allow a current provided by the current generator to remain independent of temperature. One of the two components in the current generator may mirror a component included in a voltage source that is configured to provide a voltage to the current generator.
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