161results about How to "Increase potential difference" patented technology

Disclosed is a high strength aluminium alloy brazing sheet, including an Al—Cu core layer and at least one clad layer, the core layer having the following composition (in weight percent): Cu: 1.2-4.0, Mn: 0.06-1.5, Mg: 0.06-1.5, Si: up to 0.5, Zn: <0.4, Zr: ≦0.25, Fe: ≦0.5, Ti: ≦0.25, Cr: ≦0.25; V≦0.25; the balance substantially aluminium and impurities, the clad layer including an Al—Si based filler alloy and being applied on at least one side of the core layer. Also disclosed is a brazed assembly including the brazing sheet and the use of the brazing sheet for a brazing application such as a heat exchanger.

This disclosure describes the application of a supplemental corona source to provide surface charge on submicrometer particles to enhance collection efficiency and micro-structural density during electrostatic collection.

The invention relates to a metal surface multilayer nickel plating process with excellent corrosion resistance. The manufacture process comprises the following steps of: plating a semi-bright layer firstly, plating a high-sulfur layer secondly, plating a bright layer thirdly and plating a nickel sealing layer fourthly from inside to outside. By adopting the technical scheme, the invention has the advantages of improving plating covering effect of a low current area, increasing the potential difference among nickel layers, protecting a matrix, slowing down the corrosion and greatly strengthening the corrosion resistance of the matrix by adopting the low concentration multilayer nickel (semi-bright nickel, high-sulfur nickel, bright nickel and nickel sealing) plus chrome plating process in an electroplating process, and by adopting the semi-bright nickel plating at the bottom layer, excellent leveling capability and scalability can be obtained, a plating solution is easy to control, harmful products cannot be produced after long-time operation, and the plating contains no sulfur and has higher corrosion resistance.

A magnetic sensor utilizing the spin Hall effect to polarize electrons for use in measuring a magnetic field. The sensor eliminates the need for a pinned layer structure or antiferromagnetic layer (AFM layer), thereby reducing gap thickness for increased data density. The sensor includes a non-magnetic, electrically conductive layer that is configured to accumulate electrons predominantly of one spin at a side thereof when a current flows there-through. A magnetic free layer is located adjacent to the side of the non-magnetic, electrically conductive layer. A change in the direction of magnetization in the free layer relative to the orientation of the spin polarized electrons causes a change in voltage output of the sensor.

The invention discloses a gallium nitride-based hetero-junction field effect transistor with a back electrode structure. The gallium nitride-based hetero-junction field effect transistor mainly consists of a substrate, an aluminum nitride nucleating layer, a P-type aluminum-indium-gallium-nitrogen buffering layer, a gallium nitride channel layer, an aluminum nitride inserting layer and an aluminum-indium-gallium-nitrogen barrier layer in sequence from bottom to top; a source electrode, a drain electrode and a gate electrode are formed on the barrier layer; the source electrode and the drain electrode form ohmic contact with the barrier layer; the gate electrode and the barrier layer are in Schottky contact; and the gallium nitride-based hetero-junction field effect transistor further comprises the back electrode in contact with the substrate. The back electrode in the gallium nitride-based hetero-junction field effect transistor provided by the invention modulates potential distribution of a device buffering layer, so as to increase potential difference between the two-dimensional electron gas channel and the P-type aluminum-indium-gallium-nitrogen buffering layer. Therefore, two-dimensional electron gas in the channel and the P-type impurities in the buffering layer are entirely consumed, so that the electric field distribution of the device channel is more uniform, and the breakdown voltage of the device is improved.

The invention provides a device and method for processing a semiconductor material through backward multifocal lasers and electrochemistry in a combined manner. The energy, frequency and wavelength of the lasers are regulated, and a multifocal laser beam acts on the back face of a semiconductor sample; on one hand, when the lasers radiate the back face of the semiconductor sample, a large amount of light can be stimulated in the semiconductor sample to generate holes, the holes move to the position of the surface of the polished semiconductor sample to participate in the electrochemistry reaction, and material corrosion removal is achieved; and on the other hand, on the back face of the semiconductor sample, the multifocal lasers gradually conduct processing inwards. A work electrode is a cathode, the semiconductor sample is used as an anode, and when the potential between the two electrodes is high, spark discharge processing is conducted; and when the potential is low, electrochemistry erosion removal is conducted. The multifocal lasers and electrochemistry act on the semiconductor sample in the combined manner, the corrosion efficiency is improved, and the surface quality of through holes is improved. When the high-precision micro-through-holes are processed in the semiconductor material, the combination effect is good in action effect, and the device and the method are suitable for precise processing.

The invention provides a touch panel and its display device, a method of driving touch panel and an electronic device. In one example embodiment, a display device includes a drive control section operatively coupled to a signal line and a display section. The signal line has a first voltage. In one example embodiment, the display section includes: (a) a touch detection element which outputs a touch voltage; and (b) an electrode which has a second voltage. In one example embodiment, the drive control section increases a potential difference between the first voltage and the second voltage before the touch detection element outputs the touch voltage.

A sense amplifier has a pair of internal nodes that are precharged to a power-supply level. A first pair of n-channel transistors supplies current to the internal nodes responsive to a pair of data signals, both of which are initially high. When one of the data signals begins falling toward the low level, the corresponding n-channel transistor immediately reduces the current supplied to one of the internal nodes. A second pair of n-channel transistors, cross-coupled to the internal nodes, amplifies the resulting potential difference between the internal nodes, thereby pulling down the potential of one of the internal nodes. An output signal is generated from one or both of the internal nodes. The output signal is obtained quickly, because amplification begins without delay.

The invention discloses composite micro-electrolysis filler as well as a preparation method and application thereof, and belongs to the field of wastewater treatment. The micro-electrolysis filler is prepared from the raw materials such as iron powder, charcoal active powder, a dispersing agent, a binding agent, a catalyst and the like. By applying the micro-electrolysis filler into the wastewater treatment, the problem that traditional micro-electrolysis filler is likely to harden and passivate can be solved, the biodegradability of wastewater can be obviously improved, and the wastewater processing efficiency is improved.

The present invention relates to a method for preparing graphene using a spontaneous process, and particularly, to a method for mass-producing high-quality graphene composed of a single layer or several layers by using lithium intercalation of a graphite electrode occurring during the process of charging a lithium ion battery and a lithium ion capacitor in the preparation of graphene to form a graphite intercalation compound, and performing exfoliation through a reaction with water (or alcohol).

The embodiment of the invention discloses a display panel, a driving method thereof and a display device. The display panel comprises a pixel circuit and a light-emitting element, wherein the pixel circuit comprises a data writing module, a driving module and a compensation module; the data writing module is used for selectively providing a data signal for the driving module; the driving module isused for providing driving current for the light-emitting element and comprises a driving transistor; and the compensation module is used for compensating the threshold voltage of the driving transistor. The working process of the pixel circuit comprises a bias stage, in the bias stage, the data writing module and the driving module are started, the compensation module is turned off, and data signals are written into the drain electrode of the driving transistor and used for adjusting the bias state of the driving transistor. In the embodiment of the invention, the bias stage is added and used for adjusting the voltage of the gate electrode, the source electrode or the drain electrode of the driving transistor and weakening the threshold voltage drift of the driving transistor caused by the non-bias stage.

A coated article includes a substrate, an anti-corrosion layer formed on the substrate, and a decorative layer formed on the anti-corrosion layer. The anti-corrosion layer is an amorphous alloy layer containing elements of iron, chromium, boron and M, wherein M is one or more selected from the group consisting of phosphorus, carbon and silicon. A method for making the coated article is also described.

The semiconductor memory has word lines; normal memory cells each having a storage capacitor; normal bit lines connected to the normal memory cells; a reference memory cell having a capacitor storing prescribed data; and a reference bit line connected to the reference memory cell. When a word line is selected, the potential of normal bit lines and of reference bit line changes according to the charge on the storage capacitors and on the reference capacitor. A current mirror circuit is also provided, which has a first transistor drain of which is connected to the reference bit line and second transistors drains of which are respectively connected to normal bit lines, the gates of the first and second transistors being connected in common to the reference bit line. Thus even though the capacitance values of ferroelectric capacitors is scattered, the scattering in bit line potentials during read operations can be prevented.

The invention provides a test structure. The test structure comprises a substrate layer and a plurality of discrete first inter-layer metal layers, wherein the first inter-layer metal layers are in electrical connection with a plurality of first contact plugs; and the test structure further comprises a continuously distributed second inter-layer metal layer, wherein the second inter-layer metal layer is in electrical connection with the first inter-layer metal layers through a plurality of second contact plugs. According to the invention, the first inter-layer metal layers are connected to a big second inter-layer metal layer through the second contact plugs, thus, the effect of grounding is realized, and potential difference of the surface of the first contact plugs after the metal is in broken line connection is enhanced; and based on the principle of voltage contrast of a scanning electron microscope, light and shade degree of the first contact plugs can be observed from the back of a wafer so as to reflect whether the first contact plugs are contacted well with the first inter-layer metal layers, thus, locations of defect can be found quickly, process defects can be reflected, and the aim of early defect monitoring is realized.

Strip assembly consisting of a number of strips hingeably attached to influence or not to influence light. Strips can be displaced between two positions by static charging/discharging with respect to a support attached near the strip. A voltage source provides the strips/further electrodes with the respective voltage. The strips can be configured to be (partially) non-transparent, allowing light effects to be obtained. In addition, it is possible to configure various strips differently. The strips preferably consist of a foil material allowing an especially simple construction with the aid of a film hinge. Suitable materials include polycarbonate, polyester or plastics material based on aromatics. The surface resistance is preferably at most 1000 MΩ. A broad range of uses are possible. One use is that in greenhouses but the present invention can also be applied at other locations where protection from light is necessary or specific light effects are desired.

The present invention discloses a preparation method of a nanometer iron-copper-carbon micro electrolysis material for organic waste water treatment. The preparation method comprises: mixing acrylic acid and water; adding copper-iron hydrotalcite particles to the acrylic acid solution, wherein per g of the copper-iron hydrotalcite particles is corresponding to 3-5 mmol of the acrylic acid, and the copper-iron hydrotalcite particles are screened through a 20-50 mesh sieve; adding ammonium persulfate, heating, washing with deionized water, drying, grinding, and screening through a 20-40 mesh sieve to obtain powder; heating the obtained powder under a vacuum condition to 600-700 DEG C, and carrying out calcination for 2-4 h; adding 2-4 g of the resulting product into a flask, adding 20 ml of deionized water, introducing N2 to carry out protection, stirring, then adding a KBH4 solution, and carrying out continuous stirring; and carrying out centrifugation separation, and carrying out constant temperature drying for 5-6 h at a temperature of 60-70 DEG C under N2 protection to obtain the nanometer iron-copper-carbon micro electrolysis material for organic waste water treatment, wherein an activated surface area can be increased, pollutants can be absorbed, a nanometer effect of the nano-scale iron-copper-carbon can be provided, and oxidation efficiency can be improved.

The invention discloses an electroplating productive technology in metal finishing domain, which is characterized by the following: using to metallic product or plastic rubber product; adopting different dispense of electroplating liquid; proceeding scientific control density of coating liquid, current strength, temperature and so on technical parameter; optimizing the best parameter range. This craft can plate good product, which possesses little raw material consumption and high productive efficiency and so on multiple effects.

The embodiment of the invention discloses a display panel, a driving method thereof and a display device. The display panel comprises a pixel circuit and a light-emitting element, the pixel circuit comprises a light-emitting control module, a driving module and a compensation module. The light-emitting control module comprises a first light-emitting control module, and the first light-emitting control module is used for selectively providing a first power supply signal for the driving module; the driving module is used for providing driving current for the light-emitting element and comprisesa driving transistor; the compensation module is used for compensating the threshold voltage of the driving transistor; the working process of the pixel circuit comprises a light-emitting stage and abias stage; and in the bias stage, the first light-emitting control module and the driving module are turned on, the compensation module is turned off, the driving transistor and the light-emitting element are disconnected, and a first power signal is written into the drain of the driving transistor from the source of the driving transistor and used for adjusting the bias state of the driving transistor. The embodiment of the invention weakens the threshold voltage drift of the driving transistor.

An ink jet recording apparatus ejects ink droplets toward a recording medium by causing an electrostatic force to act on ink containing charged colorant particles. The ink jet recording apparatus includes ink ejecting device for ejecting the ink droplets by causing a predetermined electrostatic force to act on the ink, ejection property detecting device for detecting a spontaneous ejection property of the ink droplets, and ejecting condition control device for controlling ejecting conditions for the ink droplets according to the spontaneous ejection property detected by the ejection property detecting device.

Provided is a non-aqueous electrolyte secondary battery combining excellent input/output performance with great durability (cycle characteristics) and an assembly thereof. The present invention provides a non-aqueous electrolyte secondary battery assembly. The positive electrode has a maximum operating voltage of 4.3 V or higher relative to lithium metal, comprising a positive electrode active material and an ion-conductive inorganic phosphate compound. The non-aqueous electrolyte solution comprises a supporting salt, an oxalatoborate-type compound, and a non-aqueous solvent. The non-aqueous solvent is formed of a non-fluorinated solvent. This invention also provides a non-aqueous electrolyte secondary battery obtained by charging the non-aqueous electrolyte secondary battery assembly.

Described herein are systems and methods for the generation of electric current and/or electric potential utilizing micro- or nano-channels and capillary flow, including fluidic or microfluidic batteries and electrochemical cells. The provided systems and methods use capillary force to promote fluid flow through micro- and nano-fluidic channels by evaporating fluid at one terminus of the channel, and the resulting fluid flow generates electric potential and or current. Advantageously, the described systems and methods remove the need for pressurized vessels or external pumps, increasing net energy generation and decreasing complexity and size of potential fluidic batteries.

A display apparatus comprises a display section including a display panel having a plurality of arranged display pixels, a display state of each of the display pixels being changed by an electric field generated between a pair of electrodes arranged to be opposed to each other; a luminous section including a luminous panel having a plurality of luminous pixels arranged correspondingly to each of the plurality of display pixels; and a control section for controlling the display state of one of the display pixels in the display panel by making an arbitrary one of the luminous pixels in the luminous panel emit a light.