436 results about "Electrostatic discharge" patented technology

The invention discloses a high-voltage bidirectional silicon controlled rectifier electrostatic protection device and a manufacturing method. The high-voltage bidirectional silicon controlled rectifier electrostatic protection device comprises a P-type substrate, a P-type well and a high-voltage N well, the emitter P + injection of a parasitic PNP triode and the emitter N + injection of a parasitic NPN triode in the P-type well are arranged alternately, so that the length of a transverse discharge path of the silicon controlled rectifier is reduced to the greatest extent, the square resistance of a PNPN positive feedback conduction path is greatly reduced, and the key problem that a symmetrical bidirectional silicon controlled rectifier structure cannot be effectively opened in a high-voltage window of more than 70V is solved; in addition, the layout can provide an additional parasitic NPN triode path for a silicon controlled rectifier path, the effective area of an emitter of the parasitic NPN triode and the proportion of the emitter in a silicon controlled rectifier loop are increased, and the current discharge capacity of the device is further improved. Therefore, reference can be provided for the structural design of the high-voltage symmetrical bidirectional silicon controlled rectifier electrostatic protection device, and the silicon controlled rectifier can be effectively applied to ESD protection of a high-voltage bidirectional port.

A semiconductor device is provided, including an input / output (I / O) pad, a power clamp, an electrostatic discharge (ESD) clamp circuit, a bias circuit, and a voltage-triggered source. The power clamp is coupled between first and second power rails. The ESD clamp circuit is connected to the I / O pad and coupled between an electrostatic discharge bus and the second power rail. The bias circuit is coupled between the first power rail and the electrostatic discharge bus, and is configured to couple the ESD bus to the first power rail during a normal operation mode, and float the electrostatic discharge bus during an electrostatic discharge mode or a fail-safe mode. The voltage-triggered source is coupled between the ESD bus and the second power rail, and provides a trigger voltage for a first electrostatic discharge path in response to an ESD event occurring on the I / O pad.

The present disclosure provides a semiconductor device, which includes a control circuit, a driving circuit, a voltage pull-up device, and a discharging circuit. The control circuit is coupled between a first terminal and a second terminal of the integrated circuit, and provides a first voltage at a first node. The driving circuit is electrically connected to the control circuit at the first node, and provides a trigger signal at a second node in response to an electrostatic discharge (ESD) event occurring at the first terminal or the second terminal. The voltage pull-up device is coupled between the first terminal and the first node, and configured to pull up the first voltage at the first node in response to the ESD event occurring at the first terminal. The discharging circuit is electrically connected to the second node, and coupled between the first terminal and the second terminal.

The invention relates to the field of chip electrostatic protection, in particular to a high-bandwidth flash memory chip ESD protection circuit optimization method and system. The method comprises the following steps: carrying out multi-point synchronous observation through a charge imaging module, and extracting ESD multi-step observation information; identifying a high density charge region based on the ESD multi-step observation information; defining a safe charge threshold value, performing charge safety evaluation on a high-density charge region, and entering a dynamic regulation and control mode; carrying out charge discharge path dynamic planning based on a dynamic regulation and control mode, and calculating real-time residual charge density; and detecting that the real-time residual charge density is lower than a safe charge threshold value, and completing the protection operation of the local bleeder circuit. The electrostatic discharge risk events higher than the safety threshold are quickly responded and efficiently processed, the safety of the chip circuit is improved, and the service life of the chip is prolonged.

The present disclosure relates to the technical field of optoelectronics, and provides a chip for laser detection, a LiDAR, a vehicle, and a photodiode. The chip for laser detection comprises a substrate, an epitaxial layer, an operating circuit, and a protection circuit. The epitaxial layer is formed over the substrate. The operating circuit is formed on the epitaxial layer. The operating circuit comprises a first photodiode and is configured to detect incident laser at an operating voltage. The protection circuit is formed on the epitaxial layer. The protection circuit is connected in parallel to the operating circuit and comprises a second photodiode. The turn-on voltage of the protection circuit is greater than the operating voltage, and the impedance of the protection circuit when it is turned on is less than the impedance of the operating circuit when it is turned on. The present disclosure can reduce the degree of damage caused by electrostatic discharge to operating circuits in chips.

The invention provides a circuit for laser detection, a laser radar and a carrier, and relates to the technical field of photoelectricity. The circuit for laser detection comprises a working circuit and a protection circuit connected in parallel with the working circuit. The working circuit comprises a first photodiode and is configured to detect echoes under working voltage, the protection circuit comprises a second photodiode, doped ions of the second photodiode and doped ions of the first photodiode are distributed in the longitudinal direction, and the break-over voltage of the protection circuit is larger than the working voltage. And the impedance of the switched-on protection circuit is smaller than that of the switched-on working circuit. According to the invention, the degree of damage to the working circuit caused by electrostatic discharge can be reduced.

A VCSEL device with a lithographic aperture and integrated electrostatic discharge event protection. The VCSEL device may comprise a plurality of layers forming a protective diode outside of the lithographic aperture area, wherein the surface area of the protective diode is larger than the surface area of said lithographic aperture.

This invention provides a radio frequency (RF) switch circuit and module. The RF switch circuit includes a first resistor and stacked switching units. Each stacked switching unit comprises multiple stages of stacked field-effect transistor (FET) circuits connected in series. Each stage of the stacked FET circuit includes a FET, a second resistor, and a bootstrap unit, which includes one or two bootstrap circuits. The bootstrap unit in each stage of the stacked FET circuit is used to raise the gate voltage of the corresponding FET during electrostatic discharge (ESD) to assist in turning on the FET and allowing the ESD current to be discharged through the path formed by the FET. This invention can prevent gate oxide breakdown or thermal damage caused by localized overheating of the FET acting as a switch during an ESD event in the RF switch circuit, thereby improving the stability of the RF switch circuit.

The application relates to a multi-axis mechanical arm-based electrostatic protection test system, and relates to the field of electrostatic discharge test, which comprises a workbench, a fixing device, a discharge device, a grabbing device, a detection device and a gun head replacing device; the grabbing device moves the electronic equipment to the fixing device, and the fixing device clamps the electronic equipment; the detection device is used for detecting the electronic equipment; the discharge device comprises an electrostatic gun driving assembly and an electrostatic gun, the electrostatic gun driving assembly drives the electrostatic gun to move, and the electrostatic gun moves to the position of the electronic equipment to discharge; the gun head replacing device comprises a replacing support frame, a replacing driving piece and a plurality of gun head placing seats; when the electrostatic gun abuts against the inner wall of the gun head placing seat, the replacing driving piece drives the gun head placing seat to rotate, so that the gun head of the electrostatic gun is taken off or installed. The application has the effect of improving the detection efficiency of the electronic equipment.

The utility model discloses a kind of circuit board processing auxiliary tool, it is related to circuit board processing technical field, including movable movable frame, the placing assembly for storing circuit board is provided in movable frame upper portion, support assembly is provided in movable frame lower portion, support assembly includes driving part and the moving block of driving part transmission connection, two vertical blowing ion fan of surface fixed mounting is installed on moving block, driving part is configured as driving moving block ion fan is made transverse reciprocating motion along the direction parallel to the bottom surface of placing assembly.By driving part driving ion fan transverse reciprocating movement along placing assembly lower portion, dynamic, uniform electrostatic elimination can be carried out to circuit board, effectively avoid local electrostatic accumulation.Ion fan reciprocating motion coverage range is wide, can ensure that circuit board is always in non-static environment in transport process, significantly reduce the damage risk of electrostatic discharge to precision component.

The application relates to a liquid crystal display panel and a preparation method thereof, and a liquid crystal photo-alignment jig. An array substrate of the display panel has a display area and a binding test area located at the periphery of the display area. The display area comprises a plurality of sub-pixels and a plurality of signal lines arranged in an array, and the binding test area comprises a plurality of test terminals arranged at intervals. The test terminals are electrically connected to the signal lines through metal traces. The counter substrate comprises a common electrode layer and a to-be-edged area corresponding to the binding test area. The to-be-edged area comprises a plurality of test electrodes arranged in the same layer as the common electrode layer and arranged at intervals. At least part of the test terminals is provided with a conductive part. At least part of the test terminals is respectively connected to the corresponding test electrodes through the respective conductive parts, so as to transmit a common voltage or a curing voltage to the liquid crystal display panel. The display panel can reduce the number of metal traces in the peripheral binding test area and the cross-line between each metal trace, reduce the risk of electrostatic discharge, and improve the product yield.

The utility model discloses a kind of micro high-output capacity's insensitive electric ignition tube, belong to the technical field of pyrotechnics, including shell (1), in the shell (1) from below to above sequentially provided with insulating sheet (8), electrostatic discharge ring (7) and electrode plug (6), the two pins (61) of the electrode plug (6) from the lower end of shell (1) stretch out shell (1) outside, the upper end surface of the electrode plug (6) is provided with bridge wire (5), the bridge wire (5) is communicated with two pins (61), the upper end surface of electrode plug (6) is provided with charge ring (4), in the charge ring (4) is provided with ignition powder (3), in the upper end surface of the ignition powder (3) is provided with cover sheet (2);The utility model makes the insensitive scheme that satisfies in GJB344A-2020 under the size frame as small as possible, simultaneously has enough big output capacity.

The application discloses an insulating adhesive, an insulating adhesive tape and a preparation method of the insulating adhesive. The insulating adhesive comprises an insulating adhesive body and insulating particles doped in the insulating adhesive body. The breakdown field strength of the insulating particles is greater than that of the insulating adhesive body. Because the breakdown field strength of the insulating particles is greater than that of the insulating adhesive body, the insulating adhesive body is more likely to be broken down than the insulating particles. When an electrostatic discharge current acts on the insulating adhesive, the electrostatic discharge current will break down the insulating adhesive body with poor insulation performance and is more likely to be broken down, bypass the insulating particles with good insulation performance and are more difficult to be broken down, so that the breakdown path of the electrostatic discharge current is lengthened, the breakdown voltage required for breaking down the insulating adhesive is increased, and thus the insulation performance of the insulating adhesive is improved.

The utility model discloses an explosion-proof forklift electrostatic discharge device which comprises a substrate electrically connected with an explosion-proof forklift and further comprises a clamping assembly arranged on the upper portion of the substrate. The machine shell is installed on the upper portion of the base plate through a clamping assembly, and the machine shell is electrically connected with the base plate through the clamping assembly; the pay-off assembly is arranged in the machine shell; the grounding assembly is fixedly mounted at the tail end of the wire pipe of the pay-off assembly; the clamping assembly comprises a bottom plate fixed to the lower portion of the machine shell and a clamping piece fixed to the lower portion of an insertion rod fixed to the lower portion of the bottom plate in an inserted mode, and the lower portion of the clamping piece is fixed into the base plate in an inserted mode. Static electricity is guided into the grounding assembly through the line pipe in the machine shell, the rolling ball in the grounding assembly is in rolling contact with the ground to release the static electricity, the sponge ball in the rolling ball absorbs liquid in the water tank and then seeps, the ground is evenly wetted through the rolling ball through hole to form a conductive film, and the grounding area and the conductive stability are improved. Static electricity of the explosion-proof forklift can be continuously and effectively released.

A device includes a first circuit region including a nanostructure device and a second circuit region offset from the first circuit region. The nanostructure device has a vertical stack of nanostructures disposed in a plurality of first semiconductor layers and a gate structure wrapping around the nanostructures of the vertical stack. The second circuit region includes a bipolar junction device electrically connected to the nanostructure device and at least one diode electrically connected between a collector and a base of the bipolar junction device. At least one implant region extends through the plurality of first semiconductor layers and a plurality of second semiconductor layers that are disposed between respective vertically neighboring pairs of the plurality of first semiconductor layers. A backside interconnect structure is electrically connected to a source / drain region of the nanostructure device.

The application provides an antenna assembly, an antenna and a communication device, and relates to the technical field of communication, to solve the problem of poor electrostatic discharge capability in a radiator. The antenna assembly provided by the application comprises a floor, a radiator and a grounding network, the radiator is used for radiating or receiving electromagnetic waves, the grounding network comprises a grounding end and a connecting end, the grounding end is connected with the floor, and the connecting end is connected with the radiator; the grounding network further comprises a resistive line and an inductive structure, and the resistive line and the inductive structure are connected between the grounding end and the connecting end. In the antenna assembly provided by the application, the resistive line has a relatively high characteristic impedance, thus, the working frequency or bandwidth and other performances of the radiator are not obviously affected, the inductive structure can conduct direct current and block alternating current, thus, the static electricity in the radiator can be discharged to the floor through the grounding network, and the grounding network can obviously block high-frequency radio frequency signals, so that the working performance of the antenna assembly is ensured.

The disclosure relates to an electrostatic discharge (ESD) protection circuit and a method of operating the same. The integrated circuit includes a buffer circuit coupled between a first node and a second node, an input / output (IO) pad coupled to the buffer circuit, a first clamping circuit coupled between the IO pad and the second node, and a second clamping circuit coupled between the IO pad and the first node. The buffer circuit is configured to output a first signal to the IO pad. The first clamping circuit is configured to clamp a first electrostatic discharge (ESD) event at the IO pad or the second node. The second clamping circuit is configured to clamp a second ESD event at the IO pad or the first node.

The utility model discloses a tanker explosion-proof funnel which comprises a funnel body, a first oil guide pipe, a second oil guide pipe and an electrostatic discharge device, the top of the first oil guide pipe is connected with the funnel body, the second oil guide pipe is connected with the first oil guide pipe in a sleeved mode, and the second oil guide pipe can rotate and slide relative to the first oil guide pipe. A locking mechanism is arranged between the second oil guide pipe and the first oil guide pipe; the electrostatic discharge device is connected with the funnel body, the first oil guide pipe or the second oil guide pipe. The second oil guide pipe can rotate and slide relative to the first oil guide pipe, and the position of the oil outlet end of the second oil guide pipe can be adjusted according to different tank body depths, so that the second oil guide pipe extends into the tank body by different depths, and the oil filling requirements of different types of tank trucks are met.

This application provides a diode structure and a gate driver chip. The diode structure includes: a substrate; a barrier layer disposed on the substrate; a first well layer disposed on the barrier layer; an injection layer disposed within the first well layer; a first region disposed within the injection layer; a second region disposed within the injection layer and adjacent to the first region, used to form the cathode of a PN junction; and a third region disposed within the injection layer and adjacent to the second region. The first and third regions are used to form the anode of the PN junction, and the first, second, and third regions form a PN junction. By using a surface PN structure instead of a buried Zener structure, the current path directly flows from the second region to the PN junction and then to the first region, without passing through the lightly doped first well layer. This results in a shorter carrier path, significantly reducing the parasitic resistance of the first well layer, thereby reducing the on-state voltage drop and improving the transient response speed during electrostatic discharge (ESD) events.

This application discloses a novel electrostatic discharge (ESD) protection method, comprising: placing an integrated circuit on a first chip; and placing an ESD protection circuit on a second chip. The ESD protection circuit includes: a first input output port, a second input contact port, a first diode, a first resistor, a first N-type field-effect transistor (FET), and a ground output port, and further includes a second diode, a capacitor, and a second N-type FET. The first input output port is connected to the input port of the integrated circuit, enabling the ESD protection method to achieve dual protection for the integrated circuit and effectively ensuring the reliability of the integrated circuit. Furthermore, by placing the integrated circuit and the ESD protection circuit on different chips, the ESD protection design is avoided on the chip containing the integrated circuit, thus avoiding the problem of being unable to perform ESD protection design due to limitations in the substrate material of the chip containing the integrated circuit. This facilitates the realization of ESD protection for ESD-sensitive novel material integrated circuits.

The invention provides a high-temperature superconducting weak magnetic detection device and system, and the device comprises a Dewar which is internally provided with a refrigerant; the reading circuit module comprises a reading circuit board and a shielding shell; an annular cavity is formed in the shielding shell, and the reading circuit board is arranged in the shielding shell; the embedded structure is inserted into the Dewar, an installation position of an SQUID chip is arranged on the embedded structure, and a lead channel is arranged on the side wall of the embedded structure; and the heat insulation structure is fixed and filled in the upper end opening of the embedded structure. According to the high-temperature superconducting weak magnetic detection device and system, connectors and fasteners do not need to be disassembled and assembled frequently in the refrigerant filling process, and operation is convenient; electrostatic point discharge is not easy to generate, and the electrostatic damage rate of the high-temperature SQUID is reduced; the high-temperature SQUID does not need to be exposed in the air in the refrigerant filling process, performance degradation of the SQUID is avoided, and the service life and the performance stability of the SQUID are further ensured; the fault rate of the system is reduced in practical application, and the reliability and stability of the system are improved.

The conductive light shield for a probe station of the present invention for cable connection pin clips includes a conductive shield body and a light-absorbing layer. The conductive shield body covers the outside of the pin clip on the probe station. The conductive shield body includes a top wall and side walls extending downwards from the edge of the top wall, with one end of the side wall away from the top wall contacting the probe station. The conductive shield body provides electrostatic shielding and optical protection, ensuring that the pin clip is protected from electrostatic discharge and stray light interference during testing, thereby improving testing accuracy and stability. Cable openings are provided on the side walls to accommodate the cable layout between the pin clip and the testing machine, ensuring that the cable can pass smoothly and maintain a normal connection with the testing system. The light-absorbing layer is disposed on the surface of the conductive shield body. The organic carbon black coating has good light absorption properties and can effectively absorb stray light from the environment, reducing interference from light reflection on the optical alignment system.

The utility model relates to the technical field of chip detection, and discloses a detection device for a semiconductor chip, which solves the problems in the background technology and comprises a working table, a vacuum chamber is arranged on the working table, a vacuum machine is arranged at the top of the vacuum chamber, an anti-static bottom plate is arranged at the bottom of the vacuum chamber, and the anti-static bottom plate is arranged on the working table. Chip detection assemblies are arranged on the anti-static bottom plate, chip clamping grooves are formed between the chip detection assemblies, the anti-static bottom plate is connected with a grounding wire, the grounding wire penetrates through the side wall of the vacuum chamber and is connected with the ground, and an ion fan is arranged in the vacuum chamber. Static charges are neutralized in time, and the chip is prevented from being damaged by electrostatic discharge in the detection process, so that the performance and reliability of the chip are guaranteed.

To provide an image forming apparatus, a sign determination method, and a program capable of detecting a sign of a sensor malfunction due to electrostatic discharge and solving a failure of a discharge path before a disadvantage occurs to a user.SOLUTION: The electronic apparatus includes sensors (photosensors 20a to 20j), a static charge detection part 104 for detecting generation of static charge, a sign determination part (CPU101) for determining a sign of malfunction of the sensors on the basis of a detection value of the static charge detection part 104, and a notification control part (CPU101) for making a notification part (display part 161) notify the sign determined by the sign determination part.SELECTED DRAWING: Figure 2

According to some embodiments, a device comprises a reference lead terminal, a negative lead terminal, a resistor connected to the negative lead terminal, and a first transistor connected to the reference lead and negative lead terminals and having a first gate electrode connected to the resistor, wherein, in response to an electrostatic voltage being applied to either the reference lead or negative lead terminal, the first transistor is operable to bypass current to the negative lead terminal.

The invention discloses a display module, and belongs to the technical field of display. At least one copper leakage area is arranged on the side, away from the display panel, of the circuit board, the copper leakage area has a grounding potential, and the orthographic projection of the copper leakage area on the circuit board is adjacent to the orthographic projection of the chip on the circuit board. The copper leakage region is arranged on one side, far away from the display panel, of the circuit board, and the orthographic projection of the copper leakage region on the circuit board is adjacent to the orthographic projection of the chip on the circuit board; when electrostatic discharge (ESD) is generated in an external environment and electrostatic charges are gathered towards the direction of the chip in a contact, radiation or conduction mode, the intrusive electrostatic charges can be preferentially and rapidly captured, guided and released to a grounding loop by the copper leakage area, and before static electricity is diffused to the chip, release and dissipation of electrostatic energy are completed, so that the chip is prevented from being damaged. Therefore, interference and damage risks of static electricity to the chip are reduced, and the working stability and reliability of the display module in a complex static electricity environment are improved.

The invention relates to the technical field of electrostatic discharge methods, and discloses an electrostatic discharge method capable of dynamic monitoring, and the method comprises the following steps: collecting a video image of a berth working area based on a multi-path camera; updating an electrostatic discharge region (ROI) and an entry detection line (line) in real time from the input field; establishing a unique tracking record for the detected target, and storing a frame sequence of the ROI touched by the left hand and the right hand of the target; if it is detected that the target crosses the detection line from bottom to top, whether a touch behavior reaching the target frame number exists in the corresponding historical sequence or not is judged; if yes, judging that electrostatic discharge exists and not giving an alarm, otherwise, giving an alarm; according to the electrostatic discharge method capable of being dynamically monitored, significant technical progress is achieved in the aspects of algorithm precision, response speed and multi-channel adaptation, stable and reliable automatic detection can be achieved in a complex industrial environment, and an efficient intelligent solution is provided for industrial safety monitoring.

An electrostatic chuck assembly is provided that is less prone to spatial discharge within a gas passage plug. This electrostatic chuck assembly comprises a ceramic plate having an upper surface on which a wafer is placed and a lower surface opposite to the upper surface, and incorporating internal electrodes which are ESC electrodes and / or RF electrodes; a cooling plate attached to the lower surface of the ceramic plate; a plug placement hole penetrating the ceramic plate from the lower surface to the upper surface; a gas passage plug provided to close the plug placement hole and configured to allow gas to pass through its interior; and a gas introduction passage provided in the cooling plate and communicating with the plug placement hole. At least a portion of the gas-contactable surface within the gas passage plug is made of a low SEEC material having a secondary electron emission coefficient (SEEC) of 5.0 or less.

The application provides a display panel, a preparation method thereof, a display module and a display device. The display panel comprises a substrate, a plurality of metal isolation units, an insulating unit and an electrode layer. The plurality of metal isolation units are located in an isolation area and are sequentially arranged around an opening area, and are arranged on one side of the substrate. The insulating unit fills a gap between two adjacent metal isolation units, and covers surfaces of the two adjacent metal isolation units away from the one side of the substrate. The electrode layer comprises a first part located on the surface of the insulating unit away from the substrate, a second part and a third part located on opposite sides of the insulating unit. Any two of the first part, the second part and the third part are not in contact. The application breaks the electrical connection between the two adjacent metal isolation units filled with the insulating unit by using the insulating unit, thereby reducing the risk of electrostatic discharge or metal electrochemical corrosion of the display panel.

The present disclosure relates to a display panel and a display device, and can provide a display panel and a display device that have a clock signal line arrangement structure that is advantageous to electrostatic discharge.