Abstract: A pizeoresistive type Z-axis accelerometer is provided, including a substrate; a plurality of anchors formed over the substrate; a plurality of cantilever beams, wherein the cantilever beams include a piezoresistive material; and a proof mass, wherein the proof mass is suspended over the substrate by respectively connecting the proof mass with the anchors, and the accelerometer senses a movement of the proof mass by the piezoresistive material.

Abstract: A sensing apparatus includes an acceleration sensing unit, for measuring an acceleration applied to a proof mass, further including: a proof mass; a carrier signal source, for providing a carrier signal; a capacitive half-bridge, including a first and a second capacitor, wherein each capacitor is coupled to the proof mass and the carrier signal source, one with a positive electrode and the other one with a negative electrode, and the acceleration applied to the proof mass makes the carrier signal flow through the first and the second capacitor so that the first capacitor and the second capacitor respectively generates a first voltage and a second voltage variation which have opposite phases with each other; and an instrumentation amplifier, for receiving and amplifying the first voltage and the second voltage variation, whereby the magnitude and the direction of the acceleration applied to the proof mass is determined.

Abstract: A pizeoresistive type Z-axis accelerometer is provided, including a substrate; a plurality of anchors formed over the substrate; a plurality of cantilever beams, wherein the cantilever beams include a piezoresistive material; and a proof mass, wherein the proof mass is suspended over the substrate by respectively connecting the proof mass with the anchors, and the accelerometer senses a movement of the proof mass by the piezoresistive material.

Abstract: A sensing apparatus includes an acceleration sensing unit, for measuring an acceleration applied to a proof mass, further including: a proof mass; a carrier signal source, for providing a carrier signal; a capacitive half-bridge, including a first and a second capacitor, wherein each capacitor is coupled to the proof mass and the carrier signal source, one with a positive electrode and the other one with a negative electrode, and the acceleration applied to the proof mass makes the carrier signal flow through the first and the second capacitor so that the first capacitor and the second capacitor respectively generates a first voltage and a second voltage variation which have opposite phases with each other; and an instrumentation amplifier, for receiving and amplifying the first voltage and the second voltage variation, whereby the magnitude and the direction of the acceleration applied to the proof mass is determined.

Abstract: The invention provides an electronic device and method for fabricating the same, and a spiral inductor device and method for fabricating the same. The electronic device includes a substrate and a conductive trace pattern formed on the substrate, wherein the conductive trace pattern has an opening to expose the substrate.

Abstract: A low noise amplifier has the properties of low noise figure and high gain under a high-frequency operation. The low noise amplifier includes a first transistor, a first inductive impedance, a first gate voltage source, a matching circuit, an input, a second inductive impedance, a second transistor, a first capacitive impedance, a second gate voltage source, a third transistor, a third gate voltage source, a second capacitive impedance, a first impedance, a second impedance, a direct current source, a first output, a second output, a first resistor, a second resistor, a third resistor, a first bulk voltage source, a second bulk voltage source, and a third bulk voltage source.

Abstract: A low noise amplifier has the properties of low noise figure and high gain under a high-frequency operation. The low noise amplifier includes a first transistor, a first inductive impedance, a first gate voltage source, a matching circuit, an input, a second inductive impedance, a second transistor, a first capacitive impedance, a second gate voltage source, a third transistor, a third gate voltage source, a second capacitive impedance, a first impedance, a second impedance, a direct current source, a first output, a second output, a first resistor, a second resistor, a third resistor, a first bulk voltage source, a second bulk voltage source, and a third bulk voltage source.