2267 results about "Contact electrode" patented technology

An externally powered and controlled neuro-implant system for transmission of stimulating therapeutic signals to an implantable electrode. The system basically consists of two coils, one external active coil and one internal passive coil each housed in a ferrite pot core which enhances inductive coupling and minimizes the coils in size, thus facilitating the construction of a passive coils array to enable the usage of multi-contact electrodes for swithching of the electrical stimulation between a number of sites along the target neurons. The implanted part of the system, comprising only a coil housed in a ferrite pot core, is fully passive. The passive coil, that is implanted under the skin, is connected with the electrode placed in neighbouring of the target neural tissue via implanted thin medical grade wires. The active coil is placed on the skin overlying the passive coil. Therapeutic signals produced by the transmitter outside the body are transmitted through the coils by inductive coupling across the skin of the patient.

Apparatus and surgical methods establish temporary suction attachment to a target site on the surface of a beating heart for analyzing electrical signals or hemodynamic responses to applied signals at the target sites for enhancing the accuracy of placement of cardiac electrodes at selected sites and for enhancing accurate placement of a surgical instrument maintained in alignment with the suction attachment. A suction port on the distal end of a supporting cannula carries surface-contacting electrodes and provides suction attachment to facilitate temporary positioning of the electrodes in contact with tissue at the target site, and a clamping and release mechanism to facilitate anchoring a cardiac electrode on the moving surface of a beating heart at a selected site. Analyses of sensed signals or responses to applied signals at target sites promote epicardial mapping of a patient's heart for determining optimum sites at which to attach cardiac electrodes.

System and method for monitoring and controlling, defibrillation and pacing which allows a victim of a cardiac rhythm abnormality immediate access to a medical professional at a central station, who will remotely monitor, diagnose and treat the victim at one of a plurality of remote sites in accordance with the following steps: (1) providing a plurality of contact electrodes for a victim at a remote site for the receipt of ECG signals and for the application of electrical pulses to the victim; (2) transmitting the signals from the remote site to a central station and displaying them for review by the medical professional; (3) the medical professional selecting from a menu of defibrillation and pacing pulses, if the application thereof is appropriate; (4) transmitting the selection results to the remote site; and (5) receiving the selection results at the remote site and applying the selected pulses to the victim.

Disclosed is a piezoelectric resonator, a process for the fabrication thereof and its use as a sensor element, which implemented in a through-flow cell, is integratable in a measurement system for the determination of the concentration of a substance contained in a liquid and/or for the determination of the physical properties of the liquid. The piezoelectric resonator is designed plane and is provided on its surface with electric contact areas for an electrode and a counter electrode, which is connectable to a signal source as well as to a measurement device. For measuring, the piezoelectric resonator is brought into contact with the to-be-examined liquid on one side, with the resonator responding to the accumulation of the mass of the to-be-detected substance or to a change in the physical properties of the liquid by changing its resonance frequency and/or oscillation amplitude.The present invention is distinguished by the fact that the piezoelectric resonator is provided with contact electrode areas which is contactable from one single side of the resonator. The resonator is the heart piece of a sensor element, which is integrated in a through-flow cell. The through-flow cell us insertable module-like in a measurement arrangement for determining the concentration of a substance contained in a liquid and/or determining the physical properties of the liquid.

A probing device for electrically contacting with a plurality of electrodes 3, 6 aligned on an object 1 to be tested so as to transfer electrical signal therewith, comprising: a wiring sheet being formed by aligning a plurality of contact electrodes 21, 110b, corresponding to each of said electrodes, each being planted with projecting probes 20, 110a covered with hard metal films on basis of a conductor thin film 41 formed on one surface of an insulator sheet 22 of a polyimide film by etching thereof, while extension wiring 23, 110c for electrically connecting to said each of said contact electrodes being formed on basis of a conductor thin film formed on either said one surface or the other surface opposing thereto of said insulator sheet of the polyimide film; and means for giving contacting pressure for obtaining electrical conduction between said extension wiring and said object to be tested by contacting tips of said projecting contact probe formed onto said each contact electrode through giving pressuring force between said wiring sheet and said object to be tested.

The invention is characterized in that it comprises a truncated contact lens (1), whose truncation plane is parallel to the base of said contact lens, and a polymeric nanocomposite material (2) centrally disposed and attached to the perimeter of the truncated area, said material being sensitive to pressure changes, biocompatible and transparent, and including contact electrodes (3), and in that it also comprises means for transmitting IOP measurement data to an external system. The invention also relates to a method for measuring IOP using said lens comprising: i) placing said sensor contact lens in the eye to determine its intraocular pressure; ii) providing a direct current value between external electrodes; iii) ΔV measurement between internal electrodes; and iv) identifying whether the value obtained is outside the linear response, expressed in changes of resistivity, of the polymeric nanocomposite material. The invention also relates to a telemetry system comprising said lens.

Disclosed is a thin-layer solar cell array system and a method for producing the same, having placed over a carrier substrate of plane design, a solar cell layer which is provided with at least one n-type conducting semiconductor zone (emitter) and at least one p-type conducting semiconductor zone (base) as well as a first and a second contact electrode, each of different electric polarity, which are each electrically connected to the emitter respectively to the base.The invention is distinguished by at least the first contact electrode being applied directly on the carrier substrate or separated by an electrically insulating layer, an electrically insulating layer being provided thereupon, and the solar cell layer being placed over the insulating layer, by at least one contact channel extending through the insulating layer and/or the solar cell layer in such a manner that the first contact electrode and the semiconductor layer zone of respective polarity inside the solar cell layer being electrically connectable by means of an electrically conducting material provided inside the contact channel, and by the second contact electrode like the first contact electrode being placed above or in the case of a conductive carrier layer also under the carrier layer and under the electrically insulating layer and the solar cell layer, and by at least one contact channel extending through the insulating layer and/or the solar cell layer in such a manner that the second contact electrode and the semiconductor layer zone of respective polarity inside the solar cell layer being electrically connected by means of an electrically conducting material provided inside the contact channel.

A method of making a thin film transistor comprising a zinc-oxide-containing semiconductor material and spaced apart first and second electrodes in contact with the material. The co-generation of high quality zinc oxide semiconductor films and contact electrodes is obtained, at low temperatures, using non-vacuum conditions, silver nanoparticles are deposited to form the source and drain and, upon heating, converted to conducting metal. Such an in-situ formation of the silver metal/zinc oxide interface provides superior transistor activity compared to evaporated silver.

A semiconductor device manufacturing method includes: stacking a plurality of electrode layers containing a semiconductor alternately with insulating layers; processing part of a multilayer body of the electrode layers and the insulating layers into a staircase shape and exposing a surface of the staircase-shaped electrode layers; forming a metal film in contact with the exposed electrode layers; reacting the semiconductor of the electrode layers with the metal film to form a metal compound in at least a portion of the electrode layers in contact with the metal film; removing an unreacted portion of the metal film; forming an interlayer insulating layer covering the staircase-shaped electrode layers after removing the unreacted portion of the metal film; forming a plurality of contact holes piercing the interlayer insulating layer, each of the contact holes reaching the metal compound of the electrode layer at a corresponding stage; and providing a plurality of contact electrodes inside the contact holes.

An irrigated balloon catheter for use in an ostium of a pulmonary vein, includes a flex circuit electrode assembly adapted for circumferential contact with the ostium when the balloon is inflated. Adapted for both diagnostic and therapeutic applications and procedures, the balloon catheter may be used with a lasso catheter or focal catheter. The flex circuit electrode assembly includes a substrate, a contact electrode on an outer surface of the substrate, the contact electrode having a “fishbone” configuration with a longitudinally elongated portion and a plurality of transversal fingers, and a wiring electrode on an inner surface of the substrate, and conductive vias extending through the substrate electrically coupling the contact electrode and the writing electrodes. Microelectrodes with exclusion zones are strategically positioned relative to the electrodes. The electrodes may also be split into electrode portions.

An ink consumption detection unit 60 includes the contact tape 84, whose one end is secured to the tank case 62 side and the other end to the flexible ink bag 68 side, and the contact electrode member 88 secured to the ink bag 68 side and placed in contact with the contact tape 84. As the ink in the ink bag 68 is consumed, the contact electrode member 88 is moved. When the contact electrode member 88 comes into contact with a plurality of contact electrodes 84EA, 84EB, 84EC representing ink consumptions in stages, the ink consumption detection unit 60 successively issues detection signals representing the ink consumptions.

A vertical nitride semiconductor light emitting device and a manufacturing method thereof are provided. In the device, an ohmic contact layer, a p-type nitride semiconductor layer, an active layer, an n-type nitride semiconductor layer and an n-electrode are sequentially formed on a conductive substrate. At least one of a surface of the p-type nitride semiconductor layer contacting the ohmic contact layer and a surface of the n-type nitride layer contacting the n-electrode has a high resistance area of damaged nitride single crystal in a substantially central portion thereof. The high resistance area has a Schottky junction with at least one of the ohmic contact layer and the n-electrode.

The invention provides for a fully electrically rechargeable metal anode battery systems and methods of achieving such systems. An electrically rechargeable metal anode cell may comprise a metal electrode, an air contacting electrode, and an aqueous electrolyte separating the metal electrode and the air contacting electrode. In some embodiments, the metal electrode may directly contact the liquid electrolyte and no separator or porous membrane is needed between the air contacting electrode and the electrolyte. Rechargeable metal anode cells may be electrically connected to one another through a centrode connection where a metal electrode of one cell and an air contacting electrode of a second cell are electrically connected. Air tunnels or pathways may be provided between individual metal anode cells arranged in a stack. In some embodiments, an electrolyte flow management system may also be provided to maintain liquid electrolyte at constant levels during charge and discharge cycles.

In the Group III nitride-based compound semiconductor light-emitting device of the invention, an non-light-emitting area is formed in a light-emitting layer. In a light-emitting diode where light is extracted on the side of an n-layer, an outer wiring trace portion and an inner wiring trace portion of an n-contact electrode impedes light emission from the light-emitting layer. Therefore, there are provided, at the interface between a p-layer and a p-contact electrode, high-resistance faces having a width wider than the orthogonal projections of contact areas between the outer and inner wiring trace portions and the n-layer on the interface between the p-contact electrode and the p-layer. Through this configuration, current flow is limited, and portions having a total area equivalent to that of the high-resistance faces of the light-emitting layer serve as non-light-emitting areas. Thus, current can be supplied preferentially to an area of the light-emitting area where the outer wiring trace portion and the inner wiring trace portion are difficult to shade light, whereby light extraction efficiency with respect to supplied current can be enhanced.

An apparatus for electropolishing a conductive layer on a wafer using a solution is disclosed. The apparatus comprises an electrode assembly immersed in the solution configured proximate to the conductive layer having a longitudinal dimension extending to at least a periphery of the wafer, the electrode assembly including an elongated contact electrode configured to receive a potential difference, an isolator adjacent the elongated contact electrode, and an elongated process electrode adjacent the isolator configured to receive the potential difference, a voltage supply is configured to supply the potential difference between the contact electrode and the process electrode to electropolish the conductive layer on the wafer.

The invention provides a force detector in which power consumption is suppressed. Four electrodes E11 through E14 are formed on a substrate, and an elastic deformable body formed of a rubber film is disposed thereon. A conductive coating is applied on the lower surface of the elastic deformable body to provide a displacing conductive layer 26. Four capacitance elements C11 through C14 are comprised by the electrodes E11 through E14 and the displacing conductive layer 26 opposed to the electrodes. The capacitance values thereof are converted into voltage values V11 through V14 by C/V converter circuit 50, and based on operation by signal processing circuit 60, an external force applied to the elastic deformable body is detected. A pair of contacting electrodes E15 and E16 are formed on the substrate, and when an external force with a predetermined strength or more is applied, the elastic deformable body deforms, and the displacing conductive layer 26 comes into contact with both electrodes E15 and E16, simultaneously. The potential of the electrode E16 is taken-in from the terminal T5, and when said potential is Vcc, the C/V converter circuit 50 is operated in a standby mode with less power consumption, and when said potential is GND, the circuit is operated in a normal mode.

A solid-state element device having: a solid-state element having a pad electrode smaller than a contact electrode, the solid-state element being flip-mounted; a power receiving/supplying portion for receiving/supplying a power, the power receiving/supplying portion being bonded to the solid-state element such that an element mounting surface thereof is nearly flush with a mounting surface of the solid-state element; and an inorganic sealing portion for sealing the solid-state element formed of an inorganic sealing material and a thermal expansion coefficient equal to that of the power receiving/supplying portion. The inorganic sealing portion defines an air layer between the solid-state element and the power receiving/supplying portion.

A photoconductive device that includes a semiconductor substrate, an antenna assembly, and a photoconductive assembly with one or more plasmonic contact electrodes. The photoconductive assembly can be provided with plasmonic contact electrodes that are arranged on the semiconductor substrate in a manner that improves the quantum efficiency of the photoconductive device by plasmonically enhancing the pump absorption into the photo-absorbing regions of semiconductor substrate. In one exemplary embodiment, the photoconductive device is arranged as a photoconductive source and is pumped at telecom pump wavelengths (e.g., 1.0-1.6 μm) and produces milliwatt-range power levels in the terahertz (THz) frequency range.

The invention relates to a method for quickly supplementing electric energy of an electric vehicle and a power supply unit thereof. The method is characterized in that a rechargeable battery pack is arranged on the electric vehicle, and a battery replacement unit, a charging library and a battery library are arranged in a power plant, wherein the rechargeable battery pack comprises a battery box and standardized standard battery units; a battery chamber is internally provided with a plurality of standard battery unit stations; guide rails are installed along with the load direction of the standard battery units; when the standard battery units operate, the standard battery units are arranged in the battery box and can smoothly load and unload in the battery box along the guide rails; after the standard battery units are in place, battery electrodes contact with electrode touching rails which are connected mutually by fixed series-parallel circuits; and the rechargeable battery pack is assembled on the electric vehicle. When it is required to supplement the electric energy, the electric vehicle enters the power plant, so that the standard battery units which are lack of electric energy are replaced by the standard battery units which are charged in the battery box. The power supply unit provided by the invention is convenient to use and reliable in performance, especially applied to quickly supplementing the electric energy for the electric vehicle, and having broad application prospects.

A semiconductor integrated circuit device includes first, second gate electrodes, first, second diffusion layers, contact electrodes electrically connected to the first diffusion layers, a first insulating film which has concave portions between the first and second gate electrodes and does not contain nitrogen as a main component, a second insulating film which is formed on the first insulating film and does not contain nitrogen as a main component, and a third insulating film formed on the first diffusion layers, first gate electrodes, second diffusion layers and second gate electrodes with the second insulating film disposed therebetween in a partial region. The second insulating film is formed to fill the concave portions and a portion between the first and second gate electrodes has a multi-layered structure containing at least the first and second insulating films.

The invention discloses a preparation method of an MWT (Metal Wrap Through) solar cell, comprising the following steps of: (1) carrying out phosphorous diffusion by using a p-type crystal silicon substrate; (2) etching one surface of the crystal silicon substrate by using a chemical solution to remove a phosphorous diffused layer so as to form a polished surface; (3) depositing a passivated antireflective film on the other surface of the crystal silicon substrate to form a light receiving surface; (4) forming a conductive through hole on the crystal silicon substrate by using laser lights; (5) filling a conductive silver paste into the conductive through hole by using a wire mesh on the polished surface so as to form an emitter contact electrode; (6) printing an aluminum paste on the polished surface by using a wire mesh so as to form a base contact electrode; (7) printing a silver contact grid line on the light receiving surface and connecting the silver contact grid line with the conductive through hole; and (8) forming the ohmic contact between a metal and the silicon substrate through sintering so as to finish the solar cell making process. The preparation method of the MWT (Metal Wrap Through) solar cell, disclosed by the invention, has the advantages of simple process flow and easiness in operation, is completely compatible with a solar cell production line widely applied in the current photovoltaic industry and is suitable for mass production.

Catheter systems and methods are disclosed. An exemplary catheter includes an outer tubing housing and an inner fluid delivery tubing, the inner fluid delivery tubing having at least one fluid delivery port. The catheter also includes a deployment member movable axially within the inner fluid delivery tubing. A plurality of splines are each connected at a proximal end to the outer tubing and at a distal end to deployment member. A seal is provided between the outer tubing and the inner fluid delivery tubing. A gasket is provided between the deployment member and the inner fluid delivery tubing. Both the seal and the gasket are configured to prevent blood or other fluid from ingressing into the outer tubing.