31results about How to "Protection capacitor" patented technology

The invention discloses a flexible-substrate-based passive wireless pressure sensor with a self-packaging function. The pressure sensor comprises an upper flexible substrate, an upper metal layer, a middle flexible substrate, a lower metal layer and a lower flexible substrate, which are sequentially arranged from top to bottom and fixedly connected. An electric through hole and a cavity are formed in the middle flexible substrate. The upper metal layer comprises a planar inductance coil and a capacitor upper polar plate positioned on the middle part of the planar inductance coil. An inner connector of the planar inductance coil is connected with the capacitor upper polar plate. The lower metal layer comprises a capacitor lower polar plate opposite to the upper plate capacitor and an interconnecting wire connected with the capacitor upper polar plate. The sizes of the capacitor upper polar plate and capacitor lower polar plate are the same. An outer connector of the planar inductance coil of the upper metal layer is connected with the interconnecting wire of the lower metal layer through a conductive medium column in the electric through hole. The cavity of the middle flexible substrate is positioned between the capacitor upper polar plate and capacitor lower polar plate. The pressure sensor has the high performance of self packaging, non-contact, high sensitivity and high quality factor.

The present disclosure relates to a display device. An exemplary embodiment of the present invention provides a display device including a substrate and an active pattern positioned above the substrate. to the active pattern includes a channel region and a conductive region having a higher carrier concentration than the channel region. A first insulating layer is disposed on the active pattern. A first conductive layer is disposed on the first insulating layer and includes a first conductor. The channel region of the active pattern includes a first channel region overlapping the first conductor along a direction orthogonal to an upper surface of the substrate. The conductive region of the active pattern includes a first conductive region overlapping the first conductor along the direction orthogonal to the upper surface of the substrate.

A method for fabricating a three dimensional type capacitor is provided. The method includes forming a first insulation layer including first contact layers over a substrate, forming a second insulation layer over the first insulation layer, forming second contact layers by using a material having an etch selectivity different from the first contact layers such that the second contact layers are connected with the first contact layers within the second insulation layer, forming an etch stop layer over the second insulation layer and the second contact layers, forming a third insulation layer over the etch stop layer, etching the third insulation layer and the etch stop layer to form first contact holes exposing the second contact layers, etching the exposed second contact layers to form second contact holes exposing the first contact holes, and forming bottom electrodes over the inner surface of the second contact holes.

An organic electroluminescent device includes a first transistor, an organic electroluminescent element that emits light with luminance corresponding to magnitude of a current supplied via the first transistor, and a capacitive element. The capacitive element includes a first electrode connected to a gate of the first transistor, a second electrode, and a dielectric film provided between the first electrode and the second electrode. The first electrode is formed on the same layer as the second electrode, and is arranged in a position away from the second electrode with the dielectric film interposed therebetween.

The invention discloses a transformer neutral point direct current suppression device. The transformer neutral point direct current suppression device comprises a blocking capacitor connected between a neutral point of a transformer and the ground, a rapid closing switch in parallel connection with the blocking capacitor, a rectifier bridge and a triggering module. The input end of the rectifier bridge is connected with the two ends of the blocking capacitor and enables an alternating current voltage of the neutral point of the transformer to be converted into a direct current voltage, and the direct current voltage is output to the triggering module. The output end of the triggering module is connected with a trip coil of the rapid closing switch and used for detecting the value of a voltage output by the rectifier bridge in time, when an over-voltage is detected, the triggering module is triggered and switched on so as to enable the trip coil to be powered on, the normally open contact of the rapid closing switch is closed rapidly, at the moment, the blocking capacitor is short-circuited by the rapid closing switch, and the neutral point of the transformer is connected with the ground through the rapid closing switch and retreats from the blocking capacitor automatically. The transformer neutral point direct current suppression device can prevent a direct current from flowing into the alternating current transformer, therefore, the neutral point of the transformer is protected, and the capacitor of the device is also protected; the reliability of the device is improved, and further expansion of power grid accidents is avoided.

The invention discloses an installation structure for a capacitor, which comprises an installation bottom plate, the capacitor, a left fixing plate, a right fixing plate and a movable plate, wherein the left fixing plate is welded on the installation bottom plate; the section of the left fixing plate is semi-annular; the internal diameter of the left fixing plate is the same as the external diameter of the capacitor; the left fixing plate and the right fixing plate have the same appearance, and are provided with opposite openings and matched with each other; the heights of both the left fixing plate and the right fixing plate are as 3/4 time as the height of the capacitor; a fixing groove is formed at the opening end of the left fixing plate; a bump matched with the fixing groove is arranged at the opening end of the right fixing plate; the movable plate welded at the bottom of the right fixing plate is located on the right side of the right fixing plate; the movable plate is fixed on the installation bottom plate by screws; and heat dissipation grooves are uniformly formed on the left fixing plate and the right fixing plate. The installation structure can protect the capacitor very well, adapt to different severe working environments and ensure the stability of the capacitor, is simple in structure and convenient to install, and facilitates promotion and using.

A capacitor device comprising: a first wiring region disposed at a predetermined location in a wiring layer on a semiconductor substrate, a second wiring region disposed in a vicinity of the first wiring region and insulated from the first wiring region, at least one first via formed by embedding conductive material in an opening of the first wiring region and electrically connected to the first wiring region; and at least one second via formed by embedding conductive material in an opening of the second wiring region and electrically connected to the second wiring region, wherein the first via and the second via are disposed so that side surfaces thereof are opposed to each other with an insulating film therebetween to form a capacitor.

A method for manufacturing a capacitor in a semiconductor device for securing capacitance without a merging phenomenon during a MPS grain growth process. The manufacturing step begins with a preparation of a substrate. The interlayer dielectric (ILD) layer is formed on the substrate and is etched to form conductive plug. Then, an etch barrier layer and a sacrifice insulating layer are formed on entire surface subsequently. A cylinder typed first electrode is formed over the conductive plug using the sacrifice insulating layer. Thereafter, first meta-stable poly silicon (MPS) grains are formed on inner wall of the first electrode except a bottom region thereof. However, second MPS grains with small sizes can be formed in the bottom region for increasing a storage area of the first electrode. Finally, a dielectric layer and a second electrode are formed on the first electrode subsequently.

The invention relates to the field of power equipment, in particular to a reactive power compensation control device comprising a radio frequency module, an antenna, an MCU controller, a three-phase voltage collecting circuit, two sets of three-phase current collecting circuits, a capacitor switching circuit, an alarm output circuit and a temperature control circuit, wherein the MCU controller isrespectively connected to the three-phase voltage collecting circuit, the three-phase current collecting circuits, the capacitor switching circuit, the alarm output circuit and the temperature controlcircuit. A capacitor switching method sets the capacity of the capacitor and an over-temperature protection value of the capacitor. The MCU controller controls the corresponding capacitor to be put into operation, and cuts off the capacitor loop and outputs an alarm when the temperature of the capacitor exceeds the set upper limit. The reactive power compensation controller and the capacitor switching method obtained by the invention have the function of wireless temperature measurement and capacitance detection of the capacitor.

A protective device for a variable-frequency power supply comprises a power resistor, a relay and a negative temperature coefficient thermistor, wherein the power resistor and the negative temperature coefficient thermistor are connected in series between the power supply and an integrated circuit; the relay is connected in parallel with the power resistor and both ends of the negative temperature coefficient thermistor; and a capacitor is connected in parallel with the integrated circuit. The invention includes the resistor satisfying the requirements of a rectification circuit, thereby effectively preventing overvoltage and overcurrent, protecting the capacitor and shortening the charge time.

A programmable signal processing module based on SiP comprises an analog-to-digital conversion unit used for converting collected analog quantity into digital quantity to be calculated and processed by a core processing chip, and the analog-to-digital conversion unit comprises a high-speed parallel ADC chip and a low-speed serial ADC chip; a core processing chip which comprises an FPGA chip and is used for completing the generation of a time sequence signal and the design of a closed-loop algorithm, calculating and processing the digital quantity converted by the analog-to-digital conversion unit and inputting the processed digital quantity into the digital-to-analog conversion unit; a digital-to-analog conversion unit which comprises a high-speed parallel DAC chip and is used for converting the digital quantity input by the core processing chip into analog quantity and outputting the analog quantity outwards; and a refreshing chip which is used for refreshing the core processing chip in real time when the single event upset occurs on the core processing chip so as to enable the core processing chip to quickly recover operation. System integration is achieved through the SIP technology, an FPGA + ADC + DAC architecture is adopted, the system is high in flexibility and integration degree, and miniaturization is achieved.

Provided is a method for manufacturing a material layer capable of increasing the deposition rate of a noble metal layer on a ferroelectric layer, a method for manufacturing a ferroelectric capacitor using the same, a ferroelectric capacitor manufactured by the same method, and a semiconductor memory device having the ferroelectric capacitor and a manufacturing method thereof. According to a method for manufacturing the material layer, a ferroelectric layer is formed. The ferroelectric layer may be exposed to seed plasma, and a material layer including a source material of the seed plasma may be formed on a region of the ferroelectric layer exposed to the seed plasma.

The invention discloses an elastic contact structure for a 4G direct current blocking device. The elastic contact structure comprises a circular ring, an inner side wall of the circular ring is provided with 4-8 petal elastic sheets, and one end of each petal elastic sheet is fixed on a circular ring in a spacing manner. The elastic contact structure disclosed in the invention can well contact with a capacitor, the capacitor can be therefore protected, and qualified rates of capacitor products can be improved.