6results about How to "Avoid electrical interference" patented technology

The invention provides a semiconductor structure and a preparation method thereof, and relates to the field of semiconductors. The semiconductor structure comprises a substrate and isolation structures, the substrate is provided with a plurality of active regions which are arranged at intervals in an array mode, and the isolation structures are located between the adjacent active regions; the defect concentration of at least part of one side of the isolation structure close to the top surface of the substrate is smaller than that of at least part of one side of the isolation structure away from the top surface of the substrate. According to the invention, the possibility of electric leakage of the semiconductor structure is reduced, and the storage performance of the memory is ensured.

The invention provides an AC voltage detection method. A detection circuit comprises an isolation sampling circuit, a proportion and offset circuit, a comparator circuit and a load driving circuit. The isolation sampling circuit samples the AC voltage; the proportion and offset circuit offsets the sampling voltage to a measurable range, reduces the sampling voltage according to the proportion and outputs the sampling voltage to the comparator circuit; the comparator circuit compares the input voltage with the reference voltage and outputs a comparison result to the load driving circuit, when the input voltage is smaller than the overvoltage reference voltage and larger than the undervoltage reference voltage, the comparator circuit outputs a normal signal, and when the input voltage is larger than the overvoltage reference voltage or smaller than the undervoltage reference voltage, the comparator circuit outputs a normal signal. The comparator circuit outputs a fault signal; the load driving circuit drives the AC circuit to be closed when inputting a normal signal, and drives the AC circuit to be disconnected when inputting a fault signal. The AC voltage detection method provided by the invention is short in response time, low in power consumption and high in reliability.

The invention provides a semiconductor structure and a preparation method thereof, and relates to the field of semiconductors. The semiconductor structure comprises a substrate and isolation structures, the substrate comprises a plurality of active regions arranged at intervals in an array mode, and the isolation structures are located in the substrate and located between the adjacent active regions; the isolation structure comprises a dipole layer and an isolation layer, and the dipole layer is located at the bottom of the isolation layer and located between the isolation layer and the substrate; the negative charge surface of the dipole layer faces the substrate, and the positive charge surface of the dipole layer faces the isolation layer. According to the invention, the possibility of electric leakage of the semiconductor structure is reduced, and the storage performance of the memory is ensured.

The present application relates to the technical field of electric heating devices for engines. Disclosed is a ceramic glow plug, comprising a housing and a heating element, the heating element being provided inside the housing, and a positive wire being connected to the top of the heating element, wherein the housing comprises an upper housing and a lower housing, both the positive wire and a negative wire pass through the upper housing, and the negative wire is connected to the heating element. The ceramic glow plug has the advantage of being resistant to electromagnetic interference.

The present application is a device for heating water installed in a water storage space in a dish-washing machine and a washing machine, the device comprising: a heating plate having a predetermined thickness and forming a heating surface on the outer surface; a heating electrode layer formed on an inner surface of a side opposite to the heating surface of the heating plate while providing a pair of first electrode pads on one side; the shell is used for fixing the heating plate at a lower opening, so that the heating surface is exposed; the bracket is connected while sealing the side opening of the shell; a pair of first lead electrodes having a first contact terminal at one end and a first lead terminal at the other end, penetrating through the holder and integrally connected to the holder; and a pair of contact guide members connected to the inner surface of the housing and provided with first pressing protrusions that press the first lead electrodes so as to bring the first contact terminals into contact with the first electrode pads.

The utility model discloses an air purification device and a control circuit, which comprise an integrated shell, a power supply assembly, a power input interface and a power management circuit, wherein a negative ion generation module, an ozone generation module and a main control board are arranged at the top of the integrated shell, and the power input interface and the power management circuit are uniformly configured. The power management circuit and the main control board supply power to the negative ion generation module and the ozone generation module in a distributed mode, the control circuit is connected with the main control board and used for adjusting and controlling the working states of the negative ion generation module and the ozone generation module, and the control circuit comprises a mode selection unit, a time sequence control unit and a safety protection unit. The control circuit is configured to at least realize one of a negative ion independent working mode, an ozone independent working mode and a cooperative working mode, and in the cooperative working mode, the negative ion generation module and the ozone generation module alternately work according to a preset time sequence; the utility model has the advantages of abundant working modes, simple power supply module and lower production cost.