92 results about "Negatively charged particle" patented technology

An electrophoretic display device including a first substrate, a second substrate, an electrophoretic material interposed between the first substrate and the second substrate, the electrophoretic material including a positively charged particle and a negatively charged particle, a common electrode provided on the second substrate, a pixel provided at an intersection of a signal line and a scan line, the pixel provided in a plural number and arranged in matrix on the first substrate. The electrophoretic display device further including a pixel electrode provided in the pixel, a capacitor line provided in the pixel, a storage capacitor provided in the pixel, and a second electrode of the storage capacitor being coupled to a storage capacitor line and a thin film transistor (TFT) provided in the pixel, a source electrode of the TFT being coupled to a first electrode of the storage capacitor and the pixel electrode, a drain electrode of the TFT being coupled to the signal line, and a gate electrode of the TFT being coupled to the scan line. A capacitor line low select signal VSL or a capacitor line non-select signal VSC having a higher electric potential than an electric potential of the capacitor line low select signal VSL is supplied to the storage capacitor line.

A novel method and mass spectrometer apparatus is introduced to enable the simultaneous isolation of cations and anions (i.e., precursor and reagent ions) in a linear multipole ion trap via the application of an additional axial DC gradient in combination with coupled RF potential(s). Thus, the combination of the RF and DC voltages in such an arrangement forms a pseudopotential designed to provide for minima for the trapped positively and negatively charged particles that result in the overlap of the ion clouds so as to provide for beneficial ion/ion reactions.

The present invention is concerned with a device for charged particle transportation and manipulation. Embodiments provide a capability of combining positively and negatively charged particles in a single transported packet. Embodiments contain an aggregate of electrodes arranged to form a channel for transportation of charged particles, as well as a source of power supply that provides supply voltage to be applied to the electrodes, the voltage to ensure creation, inside the said channel, of a non-uniform high-frequency electric field, the pseudopotential of which field has one or more local extrema along the length of the channel used for charged particle transportation, at least, within a certain interval of time, whereas, at least one of the said extrema of the pseudopotential is transposed with time, at least within a certain interval of time, at least within a part of the length of the channel used for charged particle transportation.

A membrane electrode assembly for use in a fuel cell includes an anode electrode, a cation exchange membrane, an anion exchange membrane and a cathode electrode. The anode electrode includes a first catalyst. The first catalyst separates a reducing agent into a plurality of positively charged ions and negative charges. The cation exchange membrane is configured to favor transport of positively charged ions therethrough and is also configured to inhibit transport of negatively charged particles therethrough. The anion exchange membrane is configured to favor transport of negatively charged ions therethrough and is also configured to inhibit transport of positively charged ions therethrough. The cathode electrode includes a second catalyst and is disposed adjacent to a second side of the anion exchange membrane. The second catalyst reacts electrons with the at least one oxidizing agent so as to create reduced species.

A device is disclosed for providing an inductively coupled radio frequency plasma flood gun. In one particular exemplary embodiment, the device is a plasma flood gun in an ion implantation system. The plasma flood gun may comprise a plasma chamber having one or more apertures; a gas source capable of supplying at least one gaseous substance to the plasma chamber; a single-turn coil disposed within the plasma chamber, and a power source coupled to the coil for inductively coupling radio frequency electrical power to excite the at least one gaseous substance in the plasma chamber to generate a plasma. The inner surface of the plasma chamber may be free of metal-containing material and the plasma may not be exposed to any metal-containing component within the plasma chamber. The plasma chamber may include a plurality of magnets for controlling the plasma. An exit aperture may be provided in the plasma chamber to enable negatively charged particles of the resulting plasma to engage an ion beam that is part of the associated ion implantation system. In one embodiment, magnets are disposed on opposite sides of the aperture and are used to manipulate the electrons of the plasma.

A method and system for supplying an ultra-pure fluid to a substrate process chamber using point-of-use filtration and purification. The method and system provide ability to automatically monitor and control contamination levels in fluids in real time and to stop substrate processing when contamination levels exceed predetermined thresholds. In one aspect, the invention is a system comprising: a fluid supply line adapted to supply a fluid to the process chamber; filtration means operably coupled to the fluid supply line for removing positively and negatively charged particles from the fluid prior to the fluid passing into the process chamber; a purifier operably coupled to the fluid supply line in series with the filtration means for removing ionic contaminants from the fluid prior to the fluid passing into the process chamber; sensor means for repetitively measuring particle and ionic impurity levels in the fluid that has passed through the filtration means and the purifier, the sensor means producing signals indicative of the measured particle and ionic impurity levels; a controller electrically coupled to the sensor means for receiving the signals created by the sensor means, the controller adapted to respectively compare the measured particle level and the measured ionic impurity level indicated by the signals to a predetermined particle threshold and a predetermined ionic impurity threshold, wherein upon the controller determining that either the measured particle level is above the predetermined particle threshold and/or that the measured ionic impurity level is above the predetermined ionic impurity threshold, the controller further adapted to (1) activate means to alert a user, (2) cease processing of substrates in the process chamber, and/or (3) prohibit processing of substrates in the process chamber.

An electrophoretic display device includes a first substrate and a second substrate, an electrophoretic layer disposed between the first substrate and the second substrate and containing at least a dispersion medium and positively or negatively charged particles mixed in the dispersion medium, first electrodes formed in island shapes and driven independently in respective pixels on a side of the electrophoretic layer of the first substrate, a second electrode formed on a side of the electrophoretic layer of the second substrate and having a larger area than the first electrodes, transistors connected to the first electrodes, and a first control electrode disposed in at least part of an area where the first electrodes are absent above a drain electrode of a first transistor of the transistors. A potential for repelling the particles is applied to the first control electrode.

The present invention describes an apparatus comprising a mask; a pellicle spacer, the pellicle spacer attached to the mask; and an electrostatic pellicle system, the electrostatic pellicle system attached to the pellicle spacer.

The present invention further describes a method of keeping contaminants away from a vicinity of a mask during exposure, the contaminants including an uncharged or neutral particle, a positively-charged particle, or a negatively-charged particle, comprising: inducing a positive or negative charge on the uncharged or neutral particle; attracting the positively-charged particle with a negatively-charged electric field; and attracting the negatively-charged particle with a positively-charged electric field.

Electrophoretic particles and dielectrophoretic particles are included together in a unit pixel. Each of the electrophoretic particles and the dielectrophoretic particles includes two kinds of particles having different electric properties. The electrophoretic particles include positively charged particles and negatively charged particles. The dielectrophoretic particles include particles having low dielectric constant and particles having high dielectric constant. A first electric field for moving the electrophoretic particles and a second electric field for moving the dielectrophoretic particles are applied to the unit pixel. The second electric field has an asymmetric gradient in the direction where the dielectrophoretic particles move to determine movement directions of the dielectrophoretic particles having different dielectric constants.

The invention discloses a method for solidifying ceramic slurry by employing metal ions in a temperature-controlled slow-release sintering aid. The method comprises the following steps of firstly mixing ceramic powder, a dispersing agent, a metallic oxide sintering aid and water, carrying out full ball-milling to obtain the ceramic slurry with negatively charged particle surfaces; carrying out vacuum mixing on the slurry to degas and then adding an ester pH modifier, stirring evenly and then injecting a mixture into a mold, standing at 35-70 DEG C for 1-5 hours, demolding to obtain a wet ceramic body and drying to obtain a dry body; and then sintering to obtain a ceramic sintering body. An acid is decomposed from the ester pH modifier through temperature control to react with the sintering aid in the slurry to release highly-valence counter ions, so that direct coagulation casting of the ceramic slurry is achieved. A biscuit prepared by the method is good in uniformity; the sintering temperature can be effectively reduced and the consistency and the overall mechanical property of a sintered part can be effectively improved through adding the sintering aid; the method has the advantages of being suitable for any negatively charged ceramic slurry, friendly to environment and simple in operation; and massive production is easy to implement.

A membrane electrode assembly for use in a fuel cell includes an anode electrode, a proton exchange membrane, an anion exchange membrane and a cathode electrode. The anode electrode includes a first catalyst. The first catalyst separates a reducing agent into a plurality of positively charged ions and negative charges. The proton exchange membrane is configured to favor transport of positively charged ions therethrough and is also configured to inhibit transport of negatively charged particles therethrough. The anion exchange membrane is configured to favor transport of negatively charged ions therethrough and is also configured to inhibit transport of positively charged ions therethrough. The cathode electrode includes a second catalyst and is disposed adjacent to a second side of the anion exchange membrane. The second catalyst reacts electrons with the at least one oxidizing agent so as to generate+reduced species.

A liquid which has a negative static electrical charge is coated onto positive static electrically charged glass windows, automobile and truck windshields and glass mirrors, causing the surfaces to become negatively charged. Since like static electrical charges will repel each other, the negative static electrically charged liquid coating will repel negative static electrically charged human fibers, dust and other negatively charged particles. The liquid can be coated onto the surface and then rubbed to a thin film by using a paper or fabric sheet or a circular rotating polisher. The liquid can also be pre-coated onto a paper or fabric sheet or a circular rotating polisher and then rubbed onto the surface to produce a thin film. If the film is not thin, the coating will be streaked. The coating is water insoluble and preferably is a water insoluble silicone, preferably in an amount of at least 70% silicone and most preferably comprises dimethylsiloxane or polydimethylsiloxane. The coating can be mixed with a water insoluble organic solvent and should have a viscosity in the range of 5-50 centistokes.

An ion generator can generate clean ionized gas, in which no foreign matters are mixed, and apply the same to a treated object.

Ultraviolet rays from an ultraviolet generating source 15 are irradiated to a photo receiver 11a provided with a coating layer 14 made of titanium oxide, and air surrounding the photo receiver is electrically separated to generate positively charged particles and negatively charged particles. An electric field is created by the electrode 17 in a space containing the electrically separated air to ionize the charged particles. The ionized charged particles are blown toward the treated object W by a blower 20.