48results about How to "Improve electrostatic discharge ability" patented technology

The invention discloses a dynamic sensing electrostatic protection circuit comprising a dynamic sensing circuit connected between the static end and the earth terminal in parallel, a middle buffer circuit and a static leaking circuit; the middle buffer circuit is used for buffering the dynamic sensing circuit and the static leaking circuit, and performances voltage division and driving; the input end of the middle buffer circuit is connected with the dynamic sensing circuit electrically, the output end is connected with the input end of the static leaking circuit; the middle buffer circuit consists of a PMOS tube and a resistor connected in series, or consists of a NMOS tube and a resistor connected in series. The invention can further reduce the influence of the parasitic grid capacitance to the capacitance selection in the dynamic sensing circuit, and improve the static leaking performance of the dynamic sensing static leaking circuit structure.

The invention relates to a display panel and a manufacturing method thereof. The manufacturing method comprises the following steps: providing a first substrate and a second substrate; arranging a liquid crystal layer and a frame sealing glue layer on the first substrate, wherein the frame sealing glue layer comprises a first frame sealing part and a second frame sealing part, the first frame sealing part surrounds the liquid crystal layer, and the second frame sealing part is located on a cutting path of the second substrate; assembling the first substrate with the second substrate; after the frame sealing glue layer is cured, cutting the second substrate along the cutting path, wherein the second frame sealing part is not cut, and the second frame sealing part comprises a first part exposed outside the second substrate after the cutting; and dropwise adding conducting glue to the cutting edge of the cut second substrate, so as to electrically connect at least one conducting pad on the second substrate to a conducting unit on the first substrate through the cutting edge and the first part of the second frame sealing part. By virtue of the first part of the second frame sealing part, the connecting strength of the conducting glue is increased; and furthermore, the second frame sealing part and the first second frame sealing part are produced in the same manufacture procedure, so that the additional manufacture procedure is omitted.

Embodiments of the invention disclose an electrostatic protection apparatus, a radio frequency circuit and electronic equipment. The electrostatic protection apparatus comprises a front end interface,an electrostatic protection circuit and a back end circuit; the electrostatic protection circuit is positioned between the front end interface and the back end circuit; one end of the electrostatic protection circuit is connected with the front end interface while the other end is connected with the back end circuit; and the electrostatic protection circuit consists of an electrostatic dischargecircuit and a <pi>-shaped filtering circuit in connection, and is used for performing discharging of the electrostatic current transmitted by the front end interface. By virtue of the scheme, the electrostatic discharge capability of the electronic equipment can be improved, damage and interference to the back end circuit from electrostatic can be lowered, and effective electrostatic protection isprovided for the electronic equipment.

The embodiment of the invention discloses an electro static protection apparatus, a radio-frequency circuit and an electronic device. The electro static protection apparatus comprises a front-end interface, an electro static protection circuit and a rear-end circuit; the electro static protection circuit is positioned between the front-end interface and the rear-end circuit; one end of the electro static protection circuit is connected with the front-end interface, and the other end of the electro static protection circuit is connected with the rear-end circuit; and the electro static protection circuit consists of an electro static discharge circuit and a resistor by connection, and is used for discharging an electro static current transmitted by the front-end interface. The electro static protection apparatus provided by the invention can provide effective electro static protection for the electronic device.

The invention provides an electrostatic protection device comprising a substrate, a deep N trap is arranged in the substrate, a first N trap, a first P trap and a second N trap are sequentially arranged in the deep N trap from left to right, a first N+ injection region, a first P+ injection region and a second N+ injection region are arranged in the first N trap, the second N+ injection region isbridged between the first N trap and the first P trap, a third N+ injection region, a second P+ injection region and a fourth N+ injection region are arranged in the first P trap, a fifth N+ injectionregion, a third P+ injection region and a sixth N+ injection region are arranged in the second N trap, the fifth N+ injection region is bridged between the first P trap and the second N trap, the first N trap, the first P trap, and the second N trap form a first NPN structure, the second N+ injection region, the first P trap and the third N+ injection region form a second NPN structure. Accordingto the electrostatic protection device, the voltage can be maintained, the trigger voltage can be reduced, and the electrostatic discharge capacity can be enhanced.

An embodiment of the invention discloses an electrostatic protection device, a radio frequency circuit and electronic equipment. The electrostatic protection device comprises a front end interface, an electrostatic protection circuit and a rear end circuit. The electrostatic protection circuit is located between the front end interface and the rear end circuit. One end of the electrostatic protection circuit is connected to the front end interface and the other end is connected to the rear end circuit. The electrostatic protection circuit is formed by an electrostatic discharge circuit and a T-shaped filter circuit which are connected together and is used for discharging a static current transmitted by the front end interface. In the scheme, an electrostatic discharge capacity of the electronic equipment can be increased, damages and an interference of static electricity to the rear end circuit are reduced, and effective electrostatic protection is provided for the electronic equipment.

A planar Schottky barrier diode comprises an N-type heavily-doped silicon substrate, an N-type light-doped epitaxial layer, a P-type heavily-doped loop region, a thin oxide layer, a field oxide layer, a Schottky barrier layer and multiple layers of metal and is characterized in that a P-type light-doped loop region is arranged in the N-type light-doped epitaxial layer outside the P-type heavily-doped loop region, the thin oxide layer is arranged on the P-type heavily-doped loop region and the P-type light-doped loop region, the field oxide layer is arranged on a part of the P-type light-doped loop region and on a part of the N-type light-doped epitaxial layer outside the P-type light-doped loop region, and the Schottky barrier layer is formed on a part of the P-type heavily-doped loop region and on a part of the N-type light-doped epitaxial layer. With the diode disclosed by the invention, the pressure resistant efficiency of the P-type heavily-doped loop region can be effectively improved, the surface field of a Schottkey barrier region can be further enhanced by reducing the junction depth of the P-type heavily-doped loop region, so that the lightning resistance ability of the planar Schottkey barrier is improved, the positive conducted voltage drop can be reduced, and the positive surge capability is improved.

The invention discloses a power-to-ground ESD protection unit and a double-power broadband linear voltage stabilizer protection structure. The characteristics of a bipolar transistor BE junction, RC delay and Darlington NPN transistor are utilized to construct a power-to-ground electrostatic protection unit, and the characteristics of the electrostatic protection unit and bipolar transistor BE areutilized to construct a double-power broadband bipolar linear voltage stabilizer full-chip electrostatic protection network. In the normal state of a chip, it is ensured that IO ports are isolated from one another, a full-chip electrostatic leakage access is constructed to the maximum extent, the full-chip antistatic capacity of a double-power bipolar linear voltage stabilizer is improved, and the antistatic protection network can be popularized to other double poles and analog circuits of a BCD technology.

The invention discloses a touch screen which comprises a liquid crystal display panel, a flexible circuit board, a polarizer assembly arranged on the upper surface of the color filter of the liquid crystal display panel body and a conductive silver adhesive. The polarizer assembly comprises a pressure-sensitive adhesive attached to the upper surface of the color filter and a polarizer attached tothe upper surface of the pressure-sensitive adhesive. The conductive silver adhesive is electrically connected with a corresponding electrode frame on a thin film transistor of the liquid crystal panel, and the end, away from the polarizer, of the thin film transistor is electrically connected with the flexible circuit board; the conductive silver adhesive extends in the width direction of the liquid crystal panel in the mode of being attached to the lower edge of the polarizer and makes contact with the section of the lower edge of the polarizer. The cross section of the lower edge of the polarizer is one of a vertically-cut non-linear shape, a non-vertically-cut linear shape and a non-vertically-cut non-linear shape. The contact area of the silver paste and the polarizer section pressure-sensitive adhesive is increased, and the electrostatic discharge capacity is improved.

The invention provides a display screen and an electronic device and relates to the technical field of electrostatic protection. The display screen includes a flexible circuit board, a driving chip disposed on the flexible circuit board, an electrostatic protection structure covering the driving chip and a middle frame electrically connected to the electrostatic protection structure to form an electrostatic release loop. Through the arrangement above, the problem that display screens in the prior art are easily broken down and damaged by static electricity can be solved.

Embodiments of the invention disclose an electrostatic protection component and an electronic device. The electrostatic protection component comprises a glass cover plate and a touch screen located onone side of the glass cover plate, wherein the edge, fitting the touch screen, of the glass cover plate is coated with a first conductive material for connecting static electricity entering the touchscreen from the edge of the glass cover plate to the ground and guiding the static electricity to outside. Effective electrostatic protection can be provided for the touch screen.

Embodiments of the invention disclose an electrostatic protection apparatus, a radio frequency circuit and electronic equipment. The electrostatic protection apparatus comprises a front end interface,an electrostatic protection circuit and a back end circuit; the electrostatic protection circuit is positioned between the front end interface and the back end circuit; one end of the electrostatic protection circuit is connected with the front end interface while the other end is connected with the back end circuit; and the electrostatic protection circuit consists of an electrostatic dischargecircuit and an inductor in connection, and is used for performing discharging of the electrostatic current transmitted by the front end interface. By virtue of the embodiments in the invention, effective electrostatic protection can be provided for the electronic equipment.

Embodiments of the application disclose a protection circuit, a radio frequency circuit, and electronic equipment. The protection circuit comprises a front-end interface, a back-end circuit and a capacitor, the capacitor is arranged between the front-end interface and the back-end circuit in parallel, one terminal of the capacitor is separately connected with the front-end interface and the rear-end circuit, the other end of the capacitor is connected to the ground, and the capacitor is used for discharging an electrostatic current transmitted by the front-end interface. According to the scheme, the electrostatic discharging capability of the electronic equipment can be increased, the damage to the back-end circuit and the interference with the back-end circuit by static electricity are reduced, and effective electrostatic protection is provided for the electronic equipment.

The invention provides an LDMOS static protection device. The LDMOS static protection device comprises a substrate, wherein a deep N trap is arranged on the substrate; the deep N trap is internally provided with a first P trap and a first N trap, the first P trap is internally provided with a first N+ injection area, a second N+ injection area and a first P+ injection area, and the first N trap isinternally provided with a third N+ injection area, a second P+ injection area and a third P+ injection area; the second N+ injection area, the first P trap and the first N trap form a first NPN structure, the first P trap, the first N trap and the third P+ injection area form a first PNP structure, and the first NPN structure and the first PNP structure form a first SCR path; the first N+ injection area, the first P trap and the second N+ injection area form a second NPN structure, the third P+ injection area, the first N trap and the second P+ injection area form a second PNP structure, andthe second NPN structure and the second PNP structure form a second SCR path. According to the LDMOS static protection device, one SCR path is added, so that the electrostatic discharge capacity is improved.

The invention discloses a display panel and a cutting panel, and relates to the technical field of display. The display panel comprises a non-display area, the non-display area comprises at least one crack detection circuit, the crack detection circuit comprises a crack detection signal line, a crack detection unit and at least one built-in electrostatic protection element, and the built-in electrostatic protection element is electrically connected with the crack detection signal line; the built-in electrostatic protection element comprises an electrostatic protection capacitor module; the crack detection unit is arranged in a first sub-non-display area, and at least part of the electrostatic protection capacitor module is arranged in a second sub-non-display area and / or a third sub-non-display area. The first sub non-display area and the second sub non-display area are oppositely arranged. According to the invention, the plurality of electrostatic protection capacitor modules are arranged outside the first sub-non-display area, so that a component for releasing static electricity is prevented from being arranged in the first sub-non-display area with a smaller space, and the crack detection signal line is electrically connected with more electrostatic protection capacitor modules, thereby being beneficial to improving the electrostatic discharge capacity of the crack detection signal line.

The invention relates to the field of rubber materials, and discloses a low-resistance flame-retardant rubber for a fuel cell transmission pipeline, which comprises the following components in parts by weight: 90-110 parts of vinyl silicone rubber, 40-60 parts of fumed silica, 20-40 parts of a composite flame retardant, 2-4 parts of a conductive agent, 1-3 parts of a coloring agent and 1-2 parts of a vulcanizing agent, the composite flame retardant is a polypyrrole nanotube composite flame retardant. In the preparation process of the polypyrrole nanotube composite flame retardant, magnesium hydroxide is combined to the surface of a polypyrrole nanotube, the flame retardant effect of the flame retardant is enhanced through the composite effect of the magnesium hydroxide and the polypyrrole nanotube, the dispersity and compatibility of the flame retardant are improved, the material is endowed with good flame retardance, meanwhile, the resistance of rubber is reduced under the condition that the mechanical strength requirement is met, and the service life of the material is prolonged. The rubber has good electrostatic discharge capability; the prepared rubber material has excellent flame retardant property and electrostatic discharge capability, and is suitable for being applied to fuel cell transmission pipelines.

The embodiment of the invention provides an electrostatic discharge clamping circuit and a multi-point synchronous electrostatic discharge method. The circuit provided by the embodiment of the invention is connected between a power supply and the ground, the power supply is provided with at least two connecting ends, and the circuit comprises a voltage sampling module which is configured to receive a power supply voltage at a first connecting end of the at least two connecting ends and is used for providing a first control voltage for a first node; the driving module drives the discharging module to work; the first discharging module is used for releasing electrostatic charges of the first connecting end to the ground; and the second discharging module is used for releasing electrostatic charges of at least one part of the at least two connecting ends except the first connecting end to the ground, so that the requirement of synchronously releasing static electricity at different positions through one electrostatic discharge clamping circuit in a super-large-scale chip is met, and the reliability of the super-large-scale chip is improved. And the reliability of the electrostatic discharge clamping circuit and the ESD protection capability of the chip are improved.

The invention discloses an ESD protection circuit structure of a silicon-gate MOS integrated circuit. The ESD protection circuit structure comprises an NMOS (N-channel metal oxide semiconductor) transistor, an internal circuit, a port and an N-type active region injection resistor, and is characterized in that the NMOS transistor is connected with the internal circuit and the port, the NMOS transistor is provided with the N-type active region injection resistor, the N-type active region injection resistor is connected with the internal circuit and the port, and the internal circuit is connected with the port. The NMOS transistor is provided with the N-type active region injection resistor, thereby not only reducing the area of the integrated circuit layout, but also ensuring that most static electricity is firstly discharged through the NMOS transistor and then connected to the internal circuit through the N-type active region injection resistor, being good in electrostatic discharge effect, facilitating circuit protection and being low in cost.

The embodiment of the application discloses an electrostatic protection device, a radio frequency circuit, and an electronic device. The electrostatic protection device comprises a front-end interface, an electrostatic protection circuit and a rear-end circuit. The electrostatic protection circuit is arranged between the front-end interface and the rear-end circuit; and one end of the electrostatic protection circuit is connected with the front-end interface and the other end is connected with the rear-end circuit. The electrostatic protection circuit formed by at least one resistor is used for discharging electrostatic currents transmitted by the front-end interface. Therefore, electrostatic protection on an electronic device is realized.

The invention discloses a static release gear for production of a flexible composite insulating material, comprising a guide roller, wherein the guide roller is an aluminum alloy guide roller, and the outer surface of the roller body of the guide roller is provided with an anti-static rubber layer. The static release gear further comprises an anti-static rubber plate, wherein the anti-static rubber plate is fixedly connected to the surface of one side of the a conducting plate and the anti-static rubber plate just covers the conducting plate; the conducting plate is moveably connected to a conducting rod, and the conducting rod is a U-shaped structure; the conducting plate is moveably connected to the bottom part of the U-shaped structure, and the end part of the U-shaped structure is symmetrically provided with two conducting fixing rings, and the two conducting fixing rings can be just buckled to the shaft heads at both ends of the guide roller; a butterfly shaped bolt is arranged on the conducting fixing ring, and the conducting fixing ring can be fixed on the axle head of the guide roller through the butterfly bolt; meanwhile, the anti-static rubber plate can be overlapped on the roller body of the guide roller, and the width of the anti-static rubber plate is consistent with the roller body length of the guide roller; the static release gear is convenient to mount and use; the static release effect is better.

The invention provides a silicon controlled device and a manufacturing method thereof, and the method comprises the steps: providing a substrate, forming an epitaxial layer on the substrate, forming awell region, i.e., a doped region, forming an injection region, and depositing a dielectric layer and a metal connection layer, wherein the device comprises a substrate, an epitaxial layer, a well region, an N+ injection region, a P+ injection region, a dielectric layer and a metal wiring layer. The silicon controlled device has the beneficial effects that the silicon controlled device provided by the invention has a lower trigger voltage, the higher electrostatic discharge capacity, higher stability and reliability, and meanwhile, the silicon controlled device is small in area, redundant device types do not need to be increased, and the production cost is reduced.

The embodiment of the application discloses a protection circuit, a radio frequency circuit and electronic equipment. The protection circuit comprises a front-end interface, a rear-end circuit and aninductor; the inductor is arranged in parallel between the front-end interface and the rear-end circuit; one end of the inductor is respectively connected with the front-end interface and the rear-endcircuit, and the other end of the inductor is grounded; and the inductor is used for carrying out discharging on an electrostatic current transmitted by the front-end interface. According to the scheme, electrostatic discharging capacity of the electronic equipment can be improved, damage and interference of static electricity to the rear-end circuit are reduced, and effective electrostatic protection is provided for the electronic equipment.