Abstract: Aspects of the present disclosure provide signal amplification. An example method generally includes amplifying a version of a first input signal with a power amplifier in a first state where a bias voltage of the power amplifier is set to a first voltage based on a first tracking mode; obtaining a first output signal of the power amplifier in a second state where the bias voltage is set to a second voltage less than the first voltage; determining a predistortion associated with the power amplifier based at least in part on the obtained first output signal; applying the predistortion to the first input signal; and amplifying a version of the predistorted first input signal with the power amplifier in a third state where the bias voltage is set to a third voltage based on a second tracking mode, wherein the third voltage is less than the first voltage.

Abstract: Disclosed is a semiconductor device such as a power amplifier. Unlike conventional power amplifiers, thermal bump is patterned to only cover active devices. In this way, dimensions of the semiconductor device can be reduced.

Abstract: Disclosed is a semiconductor device such as a power amplifier. Unlike conventional power amplifiers, thermal bump is patterned to only cover active devices. In this way, dimensions of the semiconductor device can be reduced.

Abstract: A CMOS process is disclosed for manufacturing an integrated circuit including both MOSFETS and GaN HEMT devices. Each GaN HEMT device resides within an oxidized window that exposes a silicon substrate having a <111> crystal lattice orientation.

Abstract: An amplifier includes a cascode structure comprising a first transistor having first characteristics coupled to a second transistor having second characteristics different than the first characteristics, the first transistor formed with the second transistor on a single diffusion.

Abstract: An apparatus is disclosed for signal filtering using magnetic coupling. The apparatus includes a substrate having an interface disposed on a surface of the substrate. The interface includes multiple connectors and is configured to accept a filter die that includes an acoustic resonator network. The apparatus also includes multiple inductors that are supported by the substrate. The multiple inductors are connected to the multiple connectors of the interface and are configured to generate a mutual inductance based on individual inductors of the multiple inductors.

Abstract: A power supply to power amplifier (PA) distribution network may include a first power supply. The PA distribution network may further include at least one power amplifier. The power amplifier may be coupled to the first power supply. The power amplifier may include a driver stage and a power stage. The power amplifier may be coupled to the first power supply via a first switch.

Abstract: An amplifier includes a cascode structure comprising a first transistor having first characteristics coupled to a second transistor having second characteristics different than the first characteristics, the first transistor formed with the second transistor on a single diffusion.

Abstract: In one embodiment, the present disclosure includes a circuit comprising a first power amplifier stage having an input to receive an input signal, an output coupled to an output node, the first power amplifier stage receiving a time-varying power supply voltage. The circuit further includes a second power amplifier stage configured in parallel with the first power amplifier stage having an input to receive the input signal, an output coupled to the output node, the second power amplifier stage receiving the time-varying power supply voltage. A first gain of the first power amplifier stage decreases when the power supply voltage is in a first low voltage range, and a second gain of the second power amplifier stage compensates for the decreasing gain of the first power amplifier stage in the first low voltage range.

Abstract: The present disclosure includes transistor devices and methods. In one embodiment, a transistor includes a gate, a source, and a drain. According to one aspect of the disclosure, different resistive paths in the drain are compensated using different gate-to-drain capacitances. According to another aspect of the disclosure, current enters a drain at a center tap point and flows symmetrically outward under two adjacent gates to two adjacent sources.

Abstract: In one embodiment, the present disclosure includes a circuit comprising a first power amplifier stage having an input to receive an input signal, an output coupled to an output node, the first power amplifier stage receiving a time-varying power supply voltage. The circuit further includes a second power amplifier stage configured in parallel with the first power amplifier stage having an input to receive the input signal, an output coupled to the output node, the second power amplifier stage receiving the time-varying power supply voltage. A first gain of the first power amplifier stage decreases when the power supply voltage is in a first low voltage range, and a second gain of the second power amplifier stage compensates for the decreasing gain of the first power amplifier stage in the first low voltage range.

Abstract: The present disclosure includes transistor devices and methods. In one embodiment, a transistor includes a gate, a source, and a drain. According to one aspect of the disclosure, different resistive paths in the drain are compensated using different gate-to-drain capacitances. According to another aspect of the disclosure, current enters a drain at a center tap point and flows symmetrically outward under two adjacent gates to two adjacent sources.

Abstract: The present disclosure includes programmable stabilization circuits and methods. In one embodiment, a power amplifier in a wireless transmitter includes a transistor comprising a gate, a source, and a drain. Feedback from the drain to the gate is modified dynamically to stabilize the amplifier under changing operating conditions. In one embodiment, a series RC circuit is configured between the drain the gate and the RC circuit value is adjusted based on different power supply voltage modes.

Abstract: A galvanic-isolated coupling of circuit portions is accomplished on the basis of a stacked chip configuration. The semiconductor chips thus can be fabricated on the basis of any appropriate process technology, thereby incorporating one or more coupling elements, such as primary or secondary coils of a micro transformer, wherein the final characteristics of the micro transformer are adjusted during the wafer bond process.

Abstract: An electronic system comprises a resistive sensor structure and an electronic circuit portion whose design is selected such that different resistive sensor structures may be combined within the same electronic circuit. To this end, the resistive sensor structure is used as a voltage/current converter that provides input currents to a current amplifier, which in turn provides an amplified output voltage on the basis of a difference of the input currents. The operating range of the current amplifier is adjusted on the basis of a programmable current source irrespective of the configuration of the resistive sensor structure.

Abstract: A touch sensor includes a substrate having a substrate surface and first electrode sets. Each first electrode set has a plurality of electrodes formed over the substrate surface and arranged in a row along a first direction, the electrodes being transparent and formed of a first material, the first material being electrically conductive and light transmissive. Each first electrode set also has connection elements. Each connection element provides an electrical connection between a pair of adjacent ones of the plurality of electrodes. The connection elements are formed of a second material having a smaller specific electric resistance than the first material. Each of the connection elements comprises a first portion, a second portion and a third portion. The third portion provides an electrical connection between the first portion and the second portion.

Abstract: An electronic system comprises a resistive sensor structure and an electronic circuit portion whose design is selected such that different resistive sensor structures may be combined within the same electronic circuit. To this end, the resistive sensor structure is used as a voltage/current converter that provides input currents to a current amplifier, which in turn provides an amplified output voltage on the basis of a difference of the input currents. The operating range of the current amplifier is adjusted on the basis of a programmable current source irrespective of the configuration of the resistive sensor structure.

Abstract: A touch sensor includes a substrate having a substrate surface and first electrode sets. Each first electrode set has a plurality of electrodes formed over the substrate surface and arranged in a row along a first direction, the electrodes being transparent and formed of a first material, the first material being electrically conductive and light transmissive. Each first electrode set also has connection elements. Each connection element provides an electrical connection between a pair of adjacent ones of the plurality of electrodes. The connection elements are formed of a second material having a smaller specific electric resistance than the first material. Each of the connection elements comprises a first portion, a second portion and a third portion. The third portion provides an electrical connection between the first portion and the second portion.

Abstract: A galvanic-isolated coupling of circuit portions is accomplished on the basis of a stacked chip configuration. The semiconductor chips thus can be fabricated on the basis of any appropriate process technology, thereby incorporating one or more coupling elements, such as primary or secondary coils of a micro transformer, wherein the final characteristics of the micro transformer are adjusted during the wafer bond process.

Abstract: A device for detecting the peak value of a signal with crest factor not known a priori includes a pair of peak detectors, each of which includes a rectifier element and a discharge-current generator and generates a respective output signal that is a function of the ratio between a physical dimension of the rectifier element and the intensity of discharge current produced by the generator. The ratio is different for the two detectors, and a combination network combines the output signals of the two peak detectors with one another and produces a combined signal indicating the peak value sought with high accuracy.