591results about "Electrostatic discharge protection" patented technology

An electrically conductive adhesive tape used for electrical and electronic products to bond or fix an element to a support while maintaining an electrical conductibility between the element and support. The conductive adhesive tape has a structure including a resin film, a metal layer formed over one surface of the resin film by depositing a conductive metal over the surface of the resin film, and a conductive adhesive layer coated over the metal layer. The metal layer has a net-shaped structure. In some cases, the metal layer may have a planar structure. The conductive adhesive tape has a very small thickness by virtue of its metal layer deposited to a very small thickness. Accordingly, the conductive adhesive tape maintains a desired strength while exhibiting a high flexibility and a high bondability, thereby exhibiting a superior conductibility. In the case in which the metal layer has a net-shaped structure, the tape has a structure having spaces where the metal layer does not exist. Where the tape is applied to a Braun tube, accordingly, there is no influence on an electron beam emitted from a deflection yoke while a desired conductibility is maintained. The manufacture of the tape is simple. By virtue of the conductibility, the tape of the present invention also has an elecromagnetic wave shielding function.

An ESD protection device is manufactured such that its ESD characteristics are easily adjusted and stabilized. The ESD protection device includes an insulating substrate, a cavity provided in the insulating substrate, at least one pair of discharge electrodes each including a portion exposed in the cavity, the exposed portions being arranged to face each other, and external electrodes provided on a surface of the insulating substrate and connected to the at least one pair of discharge electrodes. A particulate supporting electrode material having conductivity is dispersed between the exposed portions of the at least one pair of discharge electrodes in the cavity

An exemplary housing (100) for portable electronic device includes a main structure (10) and a static electricity eliminating structure (18). The main structure includes a top cover (12), a bottom cover (16) and a frame (14). The top cover faces the bottom cover. The frame is located between the top cover and bottom cover. The static electricity eliminating structure is in contact with the frame, which includes a main body (182) and a tin-cobalt alloy layer (184) formed on a surface of the main body.

An enclosure for computer-based telephone switching equipment that suppresses the radiation of electromagnetic interference through the use of multiple overlapping seals and apertures.

A liquid crystal display (LCD) device and portable display device are disclosed. The LCD device includes an LCD panel; a top case covering a periphery of the LCD panel; and a connection member between the LCD panel and the top case to provide an electrical contact between the LCD panel and the top case.

An electrostatic discharge (ESD) protection device that protects a power amplifier from ESD. The ESD protection device includes a filter circuit connected to an antenna line of a wireless communication apparatus and that passes an ESD component having a predetermined frequency or less, a detection circuit that converts an output of the filter circuit into an analog DC output, a level determination circuit that detects that the analog DC output of the detection circuit is a predetermined threshold value or more, and a control interrupt circuit that controls a state of the power amplifier in accordance with an output of the level determination circuit.

A hard disk drive has an enclosure with disk construction members and is characterized by covering the enclosure with an electrically conductive sheet. The electrically conductive sheet protects the drive regardless of which direction an ESD charge is applied. The electrically conductive sheet does not permit ESD to pass through the disk construction members stored in the enclosure. Therefore, it is possible to form a structure in which a GMR head or the like in an enclosure is not damaged due to ESD even if the enclosure is handled by a general end user. Moreover, the present invention relates to an electrically conductive sheet for covering at least both principal planes of the enclosure of a hard disk drive constituted as described above. Other modes of the invention include at least both principal planes of an enclosure being covered by the electrically conductive sheet in such a way that both sheets on both principal planes are electrically connected. In addition, portions where the enclosure contacts the disk construction members on both principal planes may also be covered and electrically interconnected. Furthermore, the electrically conductive sheet may be bonded to the surface of the enclosure by an adhesive, or provided with an opening at a position corresponding to an enclosure portion that must be brought into contact with an external atmosphere.

A touch panel and an electronic device are provided. The touch panel includes a sensing electrode array, a touch controller, and an electrostatic discharge (ESD) protection circuit. The sensing electrode array is arranged in two dimensional array of n rows and m columns for generating a sensing signal in response to a touch on the touch panel. The touch controller is operationally connected to the sensing electrode array for receiving the sensing signal and identifying the touch on the touch screen. The ESD protection circuit includes ESD protection units each being electrically connected to a corresponding row or column of the sensing electrode array and the touch controller for electrostatic discharge protection.

An assembly for mitigating at least one of an electrostatic discharge and electromagnetic interference is provided. The assembly includes (a) first and second spaced apart electrical conductors 108 and 116 and (b) a mitigation module 300 electrically coupled to the first and second spaced apart electrical conductors to control a magnitude of an electrostatic discharge and/or electromagnetic interference in the first and second electrical conductors 108 and 116. One or more of the following statements is true: (i) the mitigation module 300 comprises a ferrite material 304; (ii) the mitigation module 300 comprises a lossy dielectric material 308; and (iii) an equivalent electrical circuit for at least part of the mitigation module 300 comprises at least a first circuit segment 512 comprising a first inductor and a first capacitor electrically connected in parallel and a second capacitor 504 electrically connected in series with the first circuit segment 512. The first and second electrical conductors can be, for example, a ground plane of a printed circuit board 108 and a wall of the enclosure or chassis 116.

An electronic appliance includes a circuit board mounted with an electronic-circuit component. The circuit board is covered with a shield, and a metallic heat-dissipating member is arranged on the electronic-circuit component. The shield is grounded on the circuit board, and arranged such that at least one of the surfaces is in the vicinity of the heat-dissipating member. The heat-dissipating member is grounded on the circuit board by a ground member, and at the periphery of the ground member, magnetic members are arranged.

An inverter unit includes a conductive housing (2) which is set to a ground potential, a control circuit board (17) accommodated in the housing (2), and a discharge gap (18) provided between a conductive pattern (92) formed at the control circuit board (17) and the housing (2) for discharging when a high voltage not less than a predetermined voltage is applied. Preferably, the inverter unit further includes a conductive plate (50) covering the control circuit board (17) and electrically connected with the conductive pattern (92). The discharge gap (18) is formed between the conductive plate (50) and the housing (2).

An electrostatic protection component includes: a body in which a plurality of ceramic substrates is laminated; and a pair of discharge electrodes which are formed within the body and which are spaced to face each other. The discharge electrodes include main body portions extending along a longitudinal direction, and the main body portions include tips in the longitudinal direction and side edges extending along the longitudinal direction. The pair of discharge electrodes are arranged such that both the main body portions are adjacent to each other in a short direction. The discharge electrodes face each other in the short direction between the side edges, and discharge occurs only between the side edges, between the discharge electrodes.

A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.

An electronic device utilizing an electrostatic discharge (ESD) protection structure. The electronic device comprises a housing and a printed circuit board (PCB) with an ESD protection structure disposed thereon. The PCB has at least one metal layer with a ground circuit and a functional circuit. The ground circuit includes at least one device-protecting area near the edge of the PCB and exposed on the surface thereof. The device-protecting area is covered by a thick conductive layer, and electric components are disposed nearby, such that static electricity can be transferred to ground through the ground circuit of the PCB to protect the electronic device from interferences and damages.

The present invention relates to a circuit protection device and a method of manufacturing the same. The circuit protection device includes a common mode noise filter having a plurality of sheets, each of the sheets being formed to optionally include a coil pattern, an internal electrode, a hole filled with a conductive material, and a hole filled with a magnetic material; and an electrostatic discharge (ESD) protection device having a plurality of sheets, each of the sheets being formed to optionally include an internal electrode and a hole filled with an ESD protection material. According to the present invention, a solenoid-type common mode noise filter and an ESD protection device are laminated as a single device, and thereby common mode noises and ESD of the electronic device can be simultaneously prevented. Accordingly, the circuit protection device has a simple configuration as compared with a conventional art in which discrete devices are used to prevent common mode noises and ESD, so that an increase in size of an electronic device can be prevented, and input/output signal distortion can be prevented to thereby enhance the reliability of the electronic device.

Fiberboard to protect sensitive electronic components and devices from the hazards of ESD (electrostatic discharge) by an invention that incorporates a homogeneous shielding paperboard (30, 33) to less than or equal to one thousand ohms resistance that has been (28, 32) adhered together throughout the corrugation process or lamination process with one or more homogeneous colored dissipative high strength linerboards (34, 35). The liners have a surface resistance range between a targeted one times ten to the seventh ohms through one times ten to the eleventh ohms at twelve percent relative humidity and seventy-three degrees Fahrenheit. The linerboard (35) or paperboard (30, 33) can be used as static safe packaging cushioning material, shelving liners, dividers, in-plant handlers, specialty static free packaging, and dissipative or shielding paper bags.

A display device of the invention includes a liquid crystal display panel 1, an FPC 5, a box-formed storing case 4, and an FPC 7. The liquid crystal display panel 1 is provided with an ITO film 18 on its front side. The FPC 5 is attached to the liquid crystal display panel 1, has at least a ground line 5a, and is connected to an external device 40. The storing case 4 includes at least a rear side case (metal case) 3 electrically connected to the ITO film 18, as well as stores the liquid crystal display panel 1. The FPC 7 electrically connects the ground lines 5a of the FPC 5 and the rear side case 3. With the above-mentioned configuration, a display device can be provided wherein static protection on the front side of the display panel is easily provided.

A system for dissipating static electric charge from electronics on a circuit board as the board is inserted into the enclosure, the system comprising one or more elastic, deformable and electrically conductive gaskets mounted within the enclosure for engaging ground pins on the circuit board.

The present invention provides a charge neutralizer for accurately irradiating a soft X ray into a narrow gap after a glass substrate is lifted up.

A soft X ray is introduced into a gap “d” from a soft X ray charge neutralizer 14, and the soft X ray is detected by a soft X ray optical axis monitor 16. Mounting position adjusting means 15 is adjusted by a detection output from said soft X ray optical axis monitor, and optical axis alignment is performed. Next, according to information from a database 19, a control unit 17 controls gap adjusting means 13, and charge neutralization is performed. Charge neutralization can also be performed by controlling the gap “d” by the gap adjusting means 13 while judging neutralizing conditions as to whether a charged potential measured by an electrometer 18 is within an allowable value by the control unit 17 or not.

A printed circuit board (PCB) with electrostatic discharge protection includes at least a lead wire having a first edge with an exposed copper, and a ground wire having a second edge with another exposed copper, in which the first edge faces the second edge with a predetermined spacing. By providing the pair of the first and the second edges, electrostatic discharge of the PCB can be arbitrarily carried out between the lead wire and the ground wire.