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220results about How to "Fast signal transmission" patented technology
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Input/output circuit with user programmable functions
InactiveUS6870397B1Increase flexibilityImprove performanceSolid-state devicesLogic circuits using elementary logic circuit componentsPropagation delayFir system
The I / O circuit of the present invention provides optimal flexibility and performance using a number of different structures and methods. The present invention provides a signal follower circuit for an input pad. In one embodiment, the output buffer is capable of injecting a constant onto a pad during reconfiguration of a configurable system logic circuit. The present invention also provides a circuit for generating a programmable data propagation delay, thereby guaranteeing zero hold time for an arbitrary input register. Zero hold time is accomplished by allowing the user to optimally characterize clock delay to a given input / output circuit. The present invention also provides fast switching between input pads, thereby minimizing data propagation delay between the input pads. Additionally, the present invention reduces time spent in production product test by facilitating the testing of multiple routes with one test configuration. A circuit expanding the number of data input channels available to system routing is provided. Lastly, a plurality of identical input / output block tiles (IOBTs) is disclosed, thereby enabling each I / O circuit to provide the same signals regardless of the IOBTs location in the I / O circuit.
Owner:XILINX INC
3D assembling method for integrally integrating chips of T/R assembly
InactiveCN104332413AHighly integratedLow costSolid-state devicesSemiconductor/solid-state device manufacturingHigh densityThree-dimensional space
The invention provides a 3D assembling method for integrally integrating chips of T / R assembly, and aims to provide a T / R assembly which has advantages of reliable performance, higher density, more functions, high signal transmission speed, better performance and relatively lower cost. The 3D assembling method is realized through a solution which comprises the steps of performing z-direction expansion on a planar circuit with printed circuit patterns to a green ceramic chip laminate of a three-dimensional circuit through interlayer vertical interconnection; vertically packaging an active device in a rectangular chamber (7) of the green ceramic chip laminate (5), placing a power supply modulator on the back surface of the bottom of the green ceramic chip laminate, and inputting an outer signal from a low-frequency interface at the back surface of the green ceramic chip laminate to a pad of the green ceramic chip laminate (5); performing radio frequency connection among chips through a metal wire bonding vertical interconnection structure among the green ceramic chip laminates, accurately aligning and laminating the green ceramic laminates in a Z direction, and then sintering at a temperature of 900 DEG C, thereby preparing a three-dimensional circuit low-temperature co-sintered ceramic LTCC substrate which is used for high-density circuits with no three-dimensional space interference and is internally provided with a passive element and can be equipped with bare chips or package chips on the surface.
Owner:10TH RES INST OF CETC
Method and device for monitoring power transmission line
InactiveCN101614602AWide operating temperature rangeWork reliablyAcceleration measurementThermometers using physical/chemical changesEngineeringHandling system
The invention relates to monitoring technology of power transmission lines, in particular to technology for monitoring ice coating and waving states of the power transmission lines. The invention discloses a method and a device for monitoring the power transmission line by using fiber sensors in real time. The method for monitoring the power transmission line is characterized by comprising the following steps: arranging the fiber sensors along the power transmission line to detect characteristic parameters of different positions of a lead; and judging the state of the power transmission line according to the analysis of the characteristic parameters. The device for monitoring the power transmission line comprises the fiber sensors and a signal transmitting and processing system, and is characterized in that the fiber sensors are arranged along the length direction of the power transmission line and used for detecting and transmitting the characteristic parameters of the different positions of the power transmission line. The method and the device are used for monitoring the ice coating and waving states of the power transmission lines, can fully exert the advantages of the fiber sensors to carry out multi-parameter real-time on-line detection, and have the characteristics that the device has long service life and can work for long time reliably under on-site severe environment conditions.
Owner:SICHUAN HUIYUAN OPTICAL COMM CO LTD
Transmitter device having a modulation closed loop
InactiveUS6898257B2Rapid locking-in characteristicFast signal transmissionResonant long antennasAngle modulation detailsClosed loopMobile radio
The invention relates, inter alia, to a transmitter device, in particular for a base transceiver station in a mobile radio system, which has a digital modulator for making available a signal containing a phase information, and a modulation closed loop having a digital phase comparator operating at baseband whose first input is connected to the output of the digital modulator. In addition, a controllable oscillator is provided for generating an RF transmission signal at a controllable transmission frequency, a device which is assigned to the controllable oscillator and has the purpose of converting the RF transmission signal into a baseband signal containing a phase information. The output of the converter device is connected to a second input of the digital phase comparator.A GSM transmitter which has such a modulation closed loop exhibits, in terms of its out-band noise and interference characteristics, significantly improved properties in comparison with a GSM transmitter which does not include a modulation loop.
Owner:LUCENT TECH INC +1
Global shutter pixel circuit and method for computer vision applications
ActiveUS20190181171A1Fast time-of-flight gatingFast signal transmissionTelevision system detailsSolid-state devicesVoltage pulseFloating diffusion
An image sensor device includes a plurality of pixel cells arranged in a pixel array, a control circuit for controlling an exposure phase and a sampling phase of the image sensor device. Each of the plurality of pixel cells includes a photodiode, a storage diode, and a floating diffusion region. The control circuit is configured to activate the photodiode in a plurality of time windows to sense light reflected from a target as a result of a corresponding plurality of emitted light pulses, with a pre-determined delay time between each time window and a corresponding emitted light pulse. The photodiode can be activated using a plurality of bias voltage pulses or a plurality of global shutter signal pulses.
Owner:MAGIC LEAP
Display panel and device
InactiveCN106782270AAchieving Narrow BezelsFast signal transmissionStatic indicating devicesInput/output processes for data processingComputer engineeringSignal lines
The invention discloses a display panel and device. The display panel comprises a plurality of signal lines in a display area and a driver chip which is located in a peripheral area at one ends of the signal lines. The output ends of the driver chip are correspondingly connected with the signal lines through leads one to one. Each lead comprises two metal segments arranged in different layers, and the line width of the first metal segment is larger than that of the second metal segment. In this way, each lead between the driver chip and the corresponding signal line is set as the two metal segments arranged in different layers, that is the driver chip is connected with the signal lines through double-layer lines, so that the display panel can be provided with a narrow bezel. Besides, when the line width of the first metal segment is larger than that of the second metal segment, teh impedance difference between the double-layer lines can be reduced, and the display effect of the display panel is improved.
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Bidirectional signal transmission circuit and bus system
InactiveUS20030197528A1Improving Impedance MatchingFast signal transmissionTransmission line coupling arrangementsElectric digital data processingTransceiverBidirectional transmission
A bidirectional transmission circuit for inputting / outputting a signal from / onto a bidirectional transmission line includes: a transceiver for transmitting / receiving a signal; a first element having an impedance; a second element being a short line; and a switching unit for coupling the transceiver to the bidirectional transmission line via the first element when the transceiver transmits a signal, and coupling the transceiver to the bidirectional transmission line via the second element when the transceiver receives a signal.
Owner:PANASONIC CORP
Signal transmitting device suited to fast signal transmission
InactiveUS20050088200A1Suppress dropFast signal transmissionReliability increasing modificationsCross-talk/noise/interference reductionEngineeringElectrical impedance
A signal transmitting circuit includes a circuit block having a driving circuit and an intra-block transmission line for transmitting a signal from the driving circuit, a circuit block having a receiving circuit and an intra-block transmission line for transmitting the signal to said receiving circuit, and a main interblock transmission line for propagating a signal between the driving and receiving circuit blocks. The inter-block transmission line is terminated by a resistor having substantially the same impedance as the interblock transmission line. The intra-block transmission lines are provided with a resistance element having a resistance substantially equal to a value derived by subtracting half of an impedance of the inter-block transmission line from an impedance of the intra-block transmission line, to lower signal amplitude and suppress reflections of a signal at branch points along the main interblock transmission line, thereby enabling a high-speed signal transfer.
Owner:LG ELECTRONICS INC
Foamed Fluoropolymer Article
InactiveUS20100326697A1Fast signal transmissionDegrade dielectricPlastic/resin/waxes insulatorsClosuresPolymer scienceFluoropolymer
The present invention discloses an article made from a foamable thermoplastic polymer composition. The foamable composition of the article includes a partially-crystalline melt processible perfluoropolymer and a foam nucleating package. The foamable composition of the article has a uniform foam cell size where the foam cell size of at least 90% of the foamed cells is 50 micrometers or less. The foam nucleating package ranges from 0.1 to 10 wt % of the combined weight of the perfluoropolymer and the foam nucleating package.
Owner:EI DU PONT DE NEMOURS & CO
Fuzz button inter-board electric connector
PendingCN105006665AImprove contact reliabilityReduce volumeCoupling contact membersElectricityEngineering
According to the invention, random wire pins are used as contacts. A group of random wire pin and accessories are arranged on an insulation mounting plate to form a fuzz button inter-board electric connector. The fuzz button inter-board electric connector is in face contact with printed circuit boards. The insertion force is zero. The fuzz button inter-board connector is arranged between upper and lower printed circuit boards, and the printed circuit boards are vertically connected. By superimposing metal pins, pads of the printed circuit boards and wires are in connection without solder pressure and insertion force. The application range of the fuzz button inter-board electric connector is extended. The fuzz button inter-board electric connector can realize a variety of flexible and reliable interconnection solutions, can be used to connect almost all metal surfaces and metal surfaces and wires, can realize flat and compact internal interconnection of the printed circuit boards, can meet extreme environmental conditions of high reliability, high-speed signal, small space and high density, and is an ideal interconnection solution.
Owner:吕永锋
Cordierite-based microcrystalline glass material and preparation method thereof
InactiveCN108947257ARich sourcesSmall coefficient of thermal expansionFlexural strengthYoung's modulus
Belonging to the field of electronic ceramic materials, the invention provides a cordierite-based microcrystalline glass material and a preparation method thereof, and overcomes the problem of poor matching with silicon chips caused by large thermal expansion coefficient, low flexural strength, high dielectric constant, high dielectric loss and the like of existing ceramic materials. The cordierite-based microcrystalline glass material provided by the invention belongs to a magnesium-aluminum-silicon system, the principal crystalline phase is cordierite, the density is high, the flexural strength is up to 230MPa, the Young's modulus is 80-100GPa high, the thermal stability is good, the thermal expansion coefficient is 1.5-2.5*10<-6> / DEG C (20-600DEG C) low, and the cordierite-based microcrystalline glass material can form good match with silicon chips. At the same time, the dielectric constant can be adjusted to 4.5-5.0, the dielectric loss is tan Delta is less than 0.6*10<-3>, the signal transmission speed is greatly improved, and the power consumption is greatly reduced. In addition, in the preparation process, the temperature is lowered from the 1100DEG C or above in the traditional sintering process to 900DEG C or below, under the premise of improving the performance, the sintering temperature is further reduced and the production cost is saved. Moreover, the whole preparation technology has the characteristics of simple process, abundant raw material sources and energy consumption reduction, thus being of important significance for industrial production.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Wireless digital power supply line fault alarm device and method
InactiveCN101813738AEasy to passImprove the quality of power supplyFault locationInformation technology support systemEngineeringElectric power
The invention relates to the technical field of power line detection, in particular to a wireless digital power supply line fault alarm device and a wireless digital power supply line fault alarm method. The device comprises a signal pick-up unit, a processing unit, and an indicating unit, and is characterized in that: the signal pick-up unit comprises a conductive rubber block, a magnetic permeability material and a coil; the conductive rubber block and the magnetic permeability material form a button clamping structure; the coil is wound on the magnetic permeability material to form a current transformer for picking up current and voltage signals; the processing unit comprises a power-off detection unit, a power supply detection unit, a short-circuit detection unit and a grounding detection unit; and the indicating unit comprises a flop unit, an indicator light unit and a radio-frequency unit. The system and the method have the advantages that: 1) wireless signals are uploaded to a control center, so fault points can be accurately positioned in real time; 2) the labor intensity is lightened, and the fault points are quickly transmitted to the control center; and 3) the indication of faults is obvious, and the system and the method are suitable for wide promotion and have important effect of ensuring safe operation of a power grid.
Owner:鞍山银宇电子科技有限公司
Wireless intelligent terminal based remote wireless monitoring method for oxygen stations
ActiveCN104077909ALow costShort implementation periodTransmission systemsContainer filling methodsApplication serverMonitoring system
The invention discloses a wireless intelligent terminal based remote wireless monitoring method for oxygen stations. The remote wireless monitoring method is realized by adopting an intelligent terminal based remote wireless monitoring system for the oxygen stations; the system comprises a client, an application server and a middleware server, as well as a plurality of intelligent terminals, adjusting recording meters and positioning controllers which are distributed on the oxygen stations, wherein the client is connected with the application server through the Internet; the application server is connected with the middleware server through the Internet; the middleware server is wireless connection with the intelligent terminals of the oxygen stations respectively; the intelligent terminals of the oxygen stations are connected with the adjusting recording meters and the positioning controllers through connecting wires respectively. The remote wireless monitoring method aims at cost reduction, efficiency increase, environmental protection and energy conservation, and is more complete in functions, more humanized and more diversified.
Owner:CHONGQING IRON & STEEL GRP ELECTRONIC CO LTD
Touch Screen
InactiveUS20090109194A1Additional drawbackExtended use timeInput/output processes for data processingCMOS sensorFiber
The present invention provides the system design of the positioning analysis of a touch screen. It receives the signals from the wave sensor that employs the concept of the reflection of the light, sound, or supersonic, and the signals are calculated by the core logic circuit to obtain the position coordinate of an object. And then a display module is employed to show the moving path of the object in the manner of an image or line on a screen. The wave sensor may be implemented by a CMOS optical image sensor, infrared sensor, or supersonic sensor. The CMOS (Complementary metal oxide semiconductor) optical image sensor may additionally comprise fibers to transmit the optical wave to the CMOS sensor smoothly.
Owner:LUNGHWA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Automobile hybrid electric system based on FlexRay buses
The invention provides an automobile hybrid electric system based on FlexRay buses, aiming to solve the problem of limitations of an automobile hybrid electric system based on a controller area network (CAN) bus. The system comprises a FlexRay bus A and a FlexRay bus B, wherein the FlexRay bus A is respectively connected with an engine controller module, a transmission case controller module, a braking controller module, an entire automobile control module and a diagnosis interface module through the FlexRay network nodes of the modules; and the FlexRay bus B is respectively connected with an automatic clutch controller module, a motor controller module, a battery management system module, the entire automobile control module and the diagnosis interface module through the FlexRay network nodes of the modules. Since the FlexRay buses are used for the connection of the system provided by the invention, the bandwidths of the FlexRay buses are large, the transmission speed is fast, the system can be used as a dual-channel system to operate, the hardware cost can be saved during design, and the system is more suitable for vehicles.
Owner:BEIJING JIAOTONG UNIV
Fin-type field effect transistor and formation method thereof
ActiveCN104425599AFast signal transmissionImprove data processing capabilitiesSemiconductor/solid-state device manufacturingSemiconductor devicesCarbon layerGate dielectric
Disclosed are a fin-type field effect transistor and a formation method thereof. The formation method of the fin-type field effect transistor includes the following steps: providing a substrate and forming a fin part on the substrate; forming a silicon-carbon layer on the surface of the fin part; carrying out thermal decomposition on the silicon-carbon layer so that the silicon-carbon layer of a part thickness or all thickness is changed into a graphene layer; carrying out hydrotreating on the graphene layer so that a hydrogen-containing energy gap structure is formed on the surface layer of the graphene layer; forming a gate dielectric layer on the graphene layer and forming a first gate electrode which crosses the gate dielectric layer on the gate dielectric layer; removing the gate dielectric layer and the graphene layer at the two ends of the fin part and forming epitaxial layers with doping on the surface of the exposed fin part, wherein the epitaxial layers and the first gate electrode are separated by the remaining gate dielectric layer and the graphene layer and the epitaxial layers with doping at the two ends of the fin part are used respectively as a source electrode and a drain electrode. The hydrogen-containing energy gap structure introduces an energy gap into the graphene layer and the graphene layer with the hydrogen-containing energy gap structure is used as a channel area so that the mobility ratio of carriers in the transistor is improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP
Epoxy resin composite material as well as preparation method and application thereof
The invention provides a preparation method of an epoxy resin composite material. The preparation method of the epoxy resin composite material comprises the following steps: completely dissolving bisphenol AF into epoxy chloropropane, adding a catalyst and reacting to obtain resin etherate; performing reaction on the resin etherate and a NaOH solution to obtain bisphenol AF chlorine ether glycol;adding the NaOH solution into the bisphenol AF chlorine ether glycol dropwise to obtain fluorine-containing epoxy resin; and mixing the fluorine-containing epoxy resin and a curing agent uniformly, adding a catalyst, mixing and curing to prepare the epoxy resin composite material. The invention also provides the epoxy resin composite material prepared by the above method as well as the applicationof the epoxy resin composite material serving as an electronic material and a wave-transmitting material. C-F is formed in introducing F into the resin structure to replace C-H, and the polarity of the resin structure is reduced, so that the epoxy resin composite material with low dielectric constant, low dielectric loss and high heat stability is prepared and can be widely applied to the fieldsof printed circuit boards, coating, microelectronics and the like.
Owner:LUOYANG INST OF CUTTING EDGE TECH +1
E-SATA (External-Serial ATA) data transmission cable
InactiveCN102063963AEasy to operateSimple structureFlat/ribbon cablesInsulated conductorsHot meltEngineering
The invention relates to the transmission of data, in particular to an E-SATA (External-Serial ATA) data transmission cable applied to the data transmission of hard discs. The E-SATA data transmission cable comprises four core threads, an inner shielding layer, an inner sheath layer, an outer shielding layer and an outer sheath layer and is characterized in that two core threads covering hot-melt aluminum foil mylar inner shielding layers are arranged in parallel, the side surface of each core thread is provided with a ground wire, the inner sheath layer covers the core thread and the ground wire, the outer shielding layer consisting of a hot-melt aluminum foil and a conductive metal wire braid layer is arranged outside the outer shielding layer, and the outer sheath layer is arranged outside the outer shielding layer. The invention has the advantages of convenience of operation, simple structure, high production efficiency, signal transmission stability, fast signal transmission speed, good signal transmission quality and the like.
Owner:WEIHAI HONGLIN WIRE & CABLE
Optical assembly for radar and silicon optical chip
The present invention provides an optical assembly for radar, comprising: a polarization beam splitter configured such that a first port can receive first polarized light from a laser and output the first polarized light from a second port; the phase delay piece is configured to receive the first polarized light output by the second port from the polarization beam splitter, the first polarized light is emitted after passing through the phase delay piece, the phase delay piece is further configured to receive echoes of the radar, the echoes are adjusted into second polarized light after passing through the phase delay piece, and the second polarized light is emitted after passing through the polarization beam splitter. And the first polarized light enters the polarization beam splitter from the second port and is output from the third port, and the polarization direction of the first polarized light is perpendicular to the polarization direction of the second polarized light. According to the embodiment of the invention, crosstalk and stray light can be effectively reduced, the ranging precision of the radar is improved, and blind areas are reduced.
Owner:HESAI TECH CO LTD
Differential signaling serial interface circuit
InactiveCN101882427AFast signal transmissionIncrease productionBaseband system detailsStatic indicating devicesDifferential signalingPush pull
The invention relates to a semiconductor circuit, in particular to a push-pull type differential signaling serial interface circuit. The differential signaling serial interface circuit includes a receiver including a voltage comparator having input terminals with a termination resistor RT, a panel in front of the receiver, the panel having a load, and a transmitter for supplying a differential input current to the load of the panel.
Owner:DONGBU HITEK CO LTD
Circumference measurement method and device of spiral tube
ActiveCN102997851AMeasuring DynamicsAccurate measurementUsing optical meansMeasurement deviceEngineering
The invention provides a circumference measurement method and device of a spiral tube. The circumference measurement device comprises a detection device, a signal transmission device, a first target object, a second target object and a controller. The detection device can detect the spiral length of the spiral tube during rotation and is connected with the controller. The signal transmission device can transmit a signal. The first target object and the second target object are arranged on the wall of the spiral tube, can rotate along with the spiral tube, and respectively reflect the signal. The controller can obtain the spiral length and the tube circumference of the spiral tube rotating for any circle according to the spiral length of the spiral tube detected by the detection device when the first target object and the second target object respectively reflect the signal. By means of the technical scheme, circumference parameters such as the circumference, the diameter and the circumference error of the spiral tube can be measured accurately in a real-time and online mode, so that timely adjustment can be performed on a manufacture device of the spiral tube, installation errors can be eliminated, and manufacture accuracy of the spiral tube can be improved.
Owner:CHINA POWER IND INTERNET CO LTD
Intelligent sensitive chair and vehicle
InactiveCN109606210AFast signal transmissionEasy transferMovable seatsAutomatic controlComputer module
The invention provides an intelligent sensitive chair and a vehicle and relates to the technical field of automobile equipment. The intelligent sensitive chair comprises at least one sensor, wherein the sensor is arranged in at least one position of a chair backrest, a cushion and a headrest; a conductive board for enhancing brain wave signal transmission is arranged on one side contacting a passenger, of the sensor; a reflection receiving board for receiving brain waves of different frequencies is arranged on the other side of the sensor; each sensor is connected with a vehicle-mounted information processor; the vehicle-mounted information processor is connected with an overall vehicle intelligent control module; the vehicle-mounted information processor is used for storing, analyzing andprocessing sensation signals of the sensor to form adjusting signals which are transmitted to the overall vehicle intelligent control module; the overall vehicle intelligent control module is used for receiving adjusting signals of the vehicle-mounted information processor and used for respectively controlling action adjustment and / or function adjustment of the chair backrest, the cushion and theheadrest. By adopting the technical scheme of the invention, brain wave signals can be received, and chairs in the vehicle can be automatically controlled and adjusted appropriately.
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
Touch screen system with light reflection
InactiveUS20090141006A1Reduce manufacturing costFast signal transmissionSemiconductor/solid-state device detailsSolid-state devicesTransceiverLight reflection
The present invention discloses a touch screen system comprising LED infrared transceivers installed at appropriate positions on left and right sides of the screen respectively, and a transmitter end of the transceiver transmits LED infrared waves and spreads spherical waves all over the surface of the screen. If the surface of the screen receives an intrusion from a touch control element, the spherical waves will be interfered, interrupted and reflected, and the wave frequency of the reflection will be detected by the receiver end of the transceiver. After the receiver end has received a reflection signal, the position coordinates of the touch control element can be analyzed through the operation of a core logical unit. A display module is provided for showing the movement path of the touch control element in images or lines, so as to provide a touch screen with low manufacturing cost and long life expectancy.
Owner:LUNGHWA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Multi-cycle arrangement carrier-free double-integrated chip (IC) package and production method
ActiveCN102231376AReduce capacitanceReduce thicknessSemiconductor/solid-state device detailsSolid-state devicesCapacitanceHemt circuits
Owner:TIANSHUI HUATIAN TECH +1
Fuzz button interboard radio frequency connector
PendingCN105356106AElasticImprove contact reliabilityCoupling contact membersTwo-part coupling devicesHigh densityEngineering
The invention relates to a fuzz button interboard radio frequency connector. The fuzz button interboard radio frequency connector utilizes intertwined-wire insertion pins as contact elements; at least one group of intertwined-wire insertion pins which are arranged in the coaxial mode are arranged on an insulation installing plate; each group of intertwined-wire insertion pins in the coaxial mode can complete transmission of one path of radiofrequency signals; and a plurality of groups of intertwined-wire insertion pins can transmit multi-path of radiofrequency signals at the same time. The fuzz button interboard radio frequency connector can be used for connecting any metal surface (pad) to a pad, especially vertical connection of the radio frequency signals between a board and a board, and can be an ideal interconnection solution scheme, and can work under the working conditions, such as high reliability, high speed signal, small space, high density and extreme environment.
Owner:吕永锋
Intelligent valve remote control system and working method thereof
ActiveCN105570512ARealize joint operationLarge transmission distanceOperating means/releasing devices for valvesControl systemRemote control
The invention discloses an intelligent valve remote control system and a working method thereof and relates to the field of remote control of valves. The invention provides the intelligent valve remote control system and the working method thereof, which are smart in structure, low in operation difficulty and low in cost, and can timely find out and feed back abnormal conditions of a valve in use, so that people can quickly make a judgment and timely give commands to electric execution mechanisms. The electric execution mechanisms are used for driving the valve and communicate with a signal collecting device, a monitoring center communicates with a telecommunication base station by wireless information, a plurality of mobile phone clients communicate with the telecommunication base station by the wireless information, a plurality of the electric execution mechanisms communicate with the telecommunication base station by the wireless information, and the electric execution mechanisms are in one-to-one correspondence to the mobile phone clients. The system and the method have the characteristics of being wide in transmission scope, convenient in communication, simple to use, easy to popularize and the like.
Owner:YANGZHOU ELECTRIC POWER EQUIP MFG FACTORY CO LTD
Low-thermal-expansion cordierite-based microcrystalline glass material and preparation method thereof
ActiveCN111908797ARich sourcesImprove thermal stabilitySemiconductor/solid-state device detailsSolid-state devicesThermal dilatationHeat stability
The invention belongs to the field of electronic ceramic materials, and provides a low-thermal-expansion cordierite-based microcrystalline glass material and a preparation method thereof, which are used for super-large-scale integrated circuit packaging. The microcrystalline glass material disclosed by the invention is prepared from the following components in percentage by mass: 15 to 19 percentof MgO, 26 to 30 percent of Al2O3, 46 to 50 percent of SiO2, 2 to 6 percent of ZrO2, 1 to 5 percent of B2O3 and 1 to 3 percent of K2O. By introducing K2O as a modifier, ZrO2 as a nucleating agent andB2O3 as a burning reducing agent, a part of (MgAl2Si3O10)0.6 phase is inhibited from being converted into an Mg2Al4Si5O18 phase, so that the thermal expansion coefficient is adjusted to be close to that of a Si chip (3.5*10<-6> / DEG C) and is adjustable at the temperature of (2.5-3.5)*10<-6> / DEG C, and the thermal stability is good; meanwhile, the bending strength can reach 150-200 MPa, the Young'smodulus can reach 80-95 GPa, the dielectric constant is low by 5-6 (at 1 MHz), the dielectric loss is low by 0.5-1*10<-3>(at 1 MHz), so that the signal transmission speed can be increased, and the power consumption is greatly reduced. In conclusion, the low-thermal-expansion cordierite-based microcrystalline glass material is suitable for ultra-large-scale integrated circuit packaging, can significantly reduce signal transmission delay and reduce power consumption, and is well matched with a silicon chip.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Kitchen automatic fire extinguishing device achieving zone control
The invention belongs to fire extinguishing equipment, and particularly relates to a kitchen automatic fire extinguishing device achieving zone control. The kitchen automatic fire extinguishing device comprises a plurality of fire extinguishing mechanisms, a fire extinguishing box and a control box. A plurality of fire signal transmission devices are further included. The number of the fire signal transmission devices is the same as that of the fire extinguishing mechanisms. The input ends of the fire signal transmission devices are connected with the fire extinguishing mechanisms, and the output ends of the fire signal transmission devices are connected with the control box. According to the kitchen automatic fire extinguishing device, under the conditions that the area of a kitchen is too large, or the kitchen is divided into a plurality of zones, and even kitchens are distributed in different rooms, one corresponding fire signal transmission device only needs to be mounted on each fire extinguishing mechanism, multiple units of equipment can be jointly connected to the control box and the fire extinguishing box, multiple sets of equipment do not need to be mounted, and mounting cost is reduced; and zone control can be carried out on the different zones, targeted fire extinguishing can be carried out when a fire happens, and fire extinguishing materials and kitchen food material losses are greatly reduced.
Owner:陕西卫仕厨房灭火设备有限公司
Multi-turn arranged carrier-free IC (Integrated Circuit) chip packaging component and manufacturing method thereof
ActiveCN102231372ASimple structureGood thermal propertiesSemiconductor/solid-state device detailsSolid-state devicesCapacitancePlastic packaging
The invention discloses a multi-turn arranged carrier-free IC (Integrated Circuit) chip packaging component and a manufacturing method thereof. The multi-turn arranged carrier-free IC chip packaging component comprises a lead frame, inner pins, an IC chip and a plastic packaging body, wherein the lead frame is a carrier-free lead frame, the inner pins of the lead frame are arranged around four sides of the lead frame in turns, the IC chip is provided with bumps, and the bumps are connected to the inner pins. The number of pins of the packaging component in the invention is increased by over 40% compared with the number of the pins of a single-row lead frame with the same area; and bonding lines are not needed for the connection of the pins and the lead frame, and the structure is simple and reasonable. The heat conduction distance is short, the heat performance is excellent, the inner welding inductance and capacitance of a circuit are reduced due to direct contact between the bumps and the frame (a base plate and a chip), the signal transmission is fast, the little distortion is caused, and the electric performance is excellent; in addition, the thickness and the weight of packaging are reduced, thus the crossing and the open circuit of bonding wires are avoided, and the test yield and reliability are improved.
Owner:TIANSHUI HUATIAN TECH +1
Display device
ActiveUS20170077143A1Fast signal transmissionGap minimizationStatic indicating devicesSolid-state devicesDisplay deviceComputer science
Disclosed is a display device including: a substrate including a display area for displaying an image and a peripheral area neighboring the display area; a plurality of signal lines formed in the display area; a pad formed in the peripheral area; and a plurality of connection wires for connecting the signal lines and the pad, wherein a first connection wire and a second connection wire neighboring the first connection wire from among the plurality of connection wires are disposed on different layers, and the first connection wire and the second connection wire, which are formed to extend from the pad and are bent at least twice to have at least one being bent toward backward direction, are disposed in the peripheral area.
Owner:SAMSUNG DISPLAY CO LTD
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