Abstract: A semiconductor device includes at least a die carried by a substrate, a plurality of bond pads disposed on the die, a plurality of conductive components, and a plurality of bond wires respectively connected between the plurality of bond pads and the plurality of conductive components. The plurality of bond pads respectively correspond to a plurality of signals, and include a first bond pad configured for transmitting/receiving a first signal and a second bond pad configured for transmitting/receiving a second signal. The plurality of conductive components include a first conductive component and a second conductive component. The first conductive component is bond-wired to the first bond pad, and the second conductive component is bond-wired to the second bond pad. The first conductive component and the second conductive component are separated by at least a third conductive component of the plurality of conductive components, and the first signal is asserted when the second signal is asserted.

Abstract: An equalized capacitive touchpad and a touch positioning method for a capacitive touchpad use an equalizer to correct a sensed value detected from a sensing line of the capacitive touchpad, to thereby offset the attenuation of the sensed value due to the impedance of the sensing line. Thus, the sensed values generated from different positions along a sensing line are equalized, and the touch positioning accuracy of the capacitive touchpad is improved.

Abstract: A touch position detector includes a plurality of capacitance sensors, a negative capacitance compensation unit, an analog/digital converter and a micro processing unit. The negative capacitance compensation unit is utilized to compensate the capacitance of the capacitance sensor and get a capacitance change. The micro controller unit is utilized to detect the touch position according to the capacitance change. It is easy to get the touch position by using the touch position detector.

Abstract: A delta-sigma analog-to-digital conversion apparatus for receiving an analog input signal to generate a digital output signal includes a subtracting unit, a quantizer, and a feedback unit. The subtracting unit is utilized for performing a subtraction function to generate a subtracted signal according to the analog input signal and a feedback signal. The quantizer is coupled to the subtracting unit and utilized for performing quantization to generate a quantized signal according to the subtracted signal. The feedback unit is coupled between the subtracting unit and the quantizer, and utilized for providing the feedback signal to the subtracting unit according to the quantized signal. The subtracting unit is arranged to reduce signal input swing of the quantizer.

Abstract: A delta-sigma analog-to-digital conversion apparatus for receiving an analog input signal to generate a digital output signal includes a subtracting unit, a quantizer, and a feedback unit. The subtracting unit is utilized for performing a subtraction function to generate a subtracted signal according to the analog input signal and a feedback signal. The quantizer is coupled to the subtracting unit and utilized for performing quantization to generate a quantized signal according to the subtracted signal. The feedback unit is coupled between the subtracting unit and the quantizer, and utilized for providing the feedback signal to the subtracting unit according to the quantized signal. The subtracting unit is arranged to reduce signal input swing of the quantizer.

Abstract: An element-selecting method is utilized for selecting the converting elements of the DAC to perform the digital-to-analog conversion. The element-selecting method first determines whether the selected times of the converting elements are all equal or not. When the selected times of the converting elements are all equal, the element-selecting method determines a shifting-step according to the input signal and the number of the converting elements; otherwise, the element-selecting method determines the shifting-step to be a predetermined value. The element-selecting method then selects a converting element from the DAC by means of separating the converting element from a last selected converting element by the shifting-step. In this way, the error accumulated because of the mismatch of the converting elements is eliminated, and the toggle rate of the DAC is reduced. Hence, the glitch and the dynamic errors of the DAC are reduced, improving the performance of the DAC.

Abstract: A delta-sigma analog-to-digital conversion apparatus for receiving an analog input signal to generate a digital output signal includes a subtracting unit, a quantizer, and a feedback unit. The subtracting unit is utilized for performing a subtraction function to generate a subtracted signal according to the analog input signal and a feedback signal. The quantizer is coupled to the subtracting unit and utilized for performing quantization to generate a quantized signal according to the subtracted signal. The feedback unit is coupled between the subtracting unit and the quantizer, and utilized for providing the feedback signal to the subtracting unit according to the quantized signal. The subtracting unit is arranged to reduce signal input swing of the quantizer.

Abstract: A method for reducing current consumption of digital-to-analog conversion includes: monitoring logical states of a set of differential digital inputs, wherein the set of differential digital inputs are utilized for controlling at least one tri-state current Digital-to-Analog Converter (DAC) cell of a tri-state current DAC, and the tri-state current DAC cell has a positive output current state, a zero output current state and a negative output current state; and when the logical states of the set of differential digital inputs instruct the tri-state current DAC cell should output no positive/negative current, controlling the tri-state current DAC cell to switch to the zero output current state, temporarily decreasing a direct current passing through a middle path of the tri-state current DAC cell. An associated tri-state current DAC is also provided, where the tri-state current DAC includes: the at least one tri-state current DAC cell; and a control device.

Abstract: A method for reducing current consumption of digital-to-analog conversion includes: monitoring logical states of a set of differential digital inputs, wherein the set of differential digital inputs are utilized for controlling at least one tri-state current Digital-to-Analog Converter (DAC) cell of a tri-state current DAC, and the tri-state current DAC cell has a positive output current state, a zero output current state and a negative output current state; and when the logical states of the set of differential digital inputs instruct the tri-state current DAC cell should output no positive/negative current, controlling the tri-state current DAC cell to switch to the zero output current state, temporarily decreasing a direct current passing through a middle path of the tri-state current DAC cell. An associated tri-state current DAC is also provided, where the tri-state current DAC includes: the at least one tri-state current DAC cell; and a control device.

Abstract: A delta-sigma analog-to-digital conversion apparatus for receiving an analog input signal to generate a digital output signal includes a subtracting unit, a quantizer, and a feedback unit. The subtracting unit is utilized for performing a subtraction function to generate a subtracted signal according to the analog input signal and a feedback signal. The quantizer is coupled to the subtracting unit and utilized for performing quantization to generate a quantized signal according to the subtracted signal. The feedback unit is coupled between the subtracting unit and the quantizer, and utilized for providing the feedback signal to the subtracting unit according to the quantized signal. The subtracting unit is arranged to reduce signal input swing of the quantizer.

Abstract: A semiconductor device includes at least a die carried by a substrate, a plurality of bond pads disposed on the die, a plurality of conductive components, and a plurality of bond wires respectively connected between the plurality of bond pads and the plurality of conductive components. The plurality of bond pads respectively correspond to a plurality of signals, and include a first bond pad configured for transmitting/receiving a first signal and a second bond pad configured for transmitting/receiving a second signal. The plurality of conductive components include a first conductive component and a second conductive component. The first conductive component is bond-wired to the first bond pad, and the second conductive component is bond-wired to the second bond pad. The first conductive component and the second conductive component are separated by at least a third conductive component of the plurality of conductive components, and the first signal is asserted when the second signal is asserted.

Abstract: An equalized capacitive touchpad and a touch positioning method for a capacitive touchpad use an equalizer to correct a sensed value detected from a sensing line of the capacitive touchpad, to thereby offset the attenuation of the sensed value due to the impedance of the sensing line. Thus, the sensed values generated from different positions along a sensing line are equalized, and the touch positioning accuracy of the capacitive touchpad is improved.

Abstract: A touch position detector includes a plurality of capacitance sensors, a negative capacitance compensation unit, an analog/digital converter and a micro processing unit. The negative capacitance compensation unit is utilized to compensate the capacitance of the capacitance sensor and get a capacitance change. The micro controller unit is utilized to detect the touch position according to the capacitance change. It is easy to get the touch position by using the touch position detector.

Abstract: An object location sensor of a touch panel has at least one capacitive sensing set having two adjacent capacitive sensors. The at least one capacitive sensing set is arranged along a direction, one capacitive sensor has a capacitance value increasing gradually along the direction, and another capacitive sensor has a capacitance value decreasing gradually along the direction.

Abstract: A touch pad has a controller circuitry for generating an X-Y coordinate signal; a touch screen connecting with the controller circuitry, which has a transparent substrate and a transparent conductive film provided at the transparent substrate. The transparent conductive film having a plurality of capacitance sensors distributed along an X-coordinate direction and a Y-coordinate direction. The plurality of capacitance sensors are patterned for averaging the resistance capacitance distribution.

Abstract: In a reference current generator, a current mirror has a referent branch with a first current flowing thereon and a mirror branch to produce a second current by mirroring the first current, a first transistor is coupled to the referent branch, a second transistor is coupled to the mirror branch and has a gate coupled to the gate of the first transistor, one or more third transistors each produces a reference current by mirroring the first current or the second current to supply for a load, and a resistor having a resistance proportional to the absolute temperature is coupled to the first transistor such that a third current equal to the summation of the first current and all the mirrored reference currents flows through the resistor.

Abstract: In a reference current generator, a current mirror has a referent branch with a first current flowing thereon and a mirror branch to produce a second current by mirroring the first current, a first transistor is coupled to the referent branch, a second transistor is coupled to the mirror branch and has a gate coupled to the gate of the first transistor, one or more third transistors each produces a reference current by mirroring the first current or the second current to supply for a load, and a resistor having a resistance proportional to the absolute temperature is coupled to the first transistor such that a third current equal to the summation of the first current and all the mirrored reference currents flows through the resistor.

Abstract: A method of fabricating a device with spherical quantum dots by a combination of gas condensation and an epitaxial technique includes the following steps: (a) a quantum dots growth step, when the quantum dots are grown on the substrate by a gas condensation method; (b) a quantum dots processing step, when an ultrasonic cleaner is used with an organic solvent to vibrate the substrate in which quantum dots have been grown in step (a), or the substrate in which quantum dots have been grown in step (a) is thermally annealed at a high temperature to obtain a thin layer of quantum dots; and (c) an epitaxial layer cover step, when an epitaxial layer is covered over the quantum dots processed by step (b) by an epitaxial technique. By virtue of the above processes, a device with completely spherical quantum dots is obtained.