458results about "Fixed capacitors" patented technology

A modified graphite oxide material contains a thermally exfoliated graphite oxide with a surface area of from about 300 m²/g to 2600 m²/g, wherein the thermally exfoliated graphite oxide displays no signature of the original graphite and/or graphite oxide, as determined by X-ray diffraction.

A method of etching polysilicon includes exposing a substrate comprising polysilicon to a solution comprising water, HF, and at least one of a conductive metal nitride, Pt, and Au under conditions effective to etch polysilicon from the substrate. In one embodiment, a substrate first region comprising polysilicon and a substrate second region comprising at least one of a conductive metal nitride, Pt, and Au is exposed to a solution comprising water and HF. The solution is devoid of any detectable conductive metal nitride, Pt, and Au prior to the exposing. At least some of the at least one are etched into the solution upon the exposing. Then, polysilicon is etched from the first region at a faster rate than any etch rate of the first region polysilicon prior to the etching of the at least some of the conductive metal nitride, Pt, and Au.

Multilayer carbon nanotube capacitors, and methods and printable compositions for manufacturing multilayer carbon nanotubes (CNTs) are disclosed. A first capacitor embodiment comprises: a first conductor; a plurality of fixed CNTs in an ionic liquid, each fixed CNT comprising a magnetic catalyst nanoparticle coupled to a carbon nanotube and further coupled to the first conductor; and a first plurality of free CNTs dispersed and moveable in the ionic liquid. Another capacitor embodiment comprises: a first conductor; a conductive nanomesh coupled to the first conductor; a first plurality of fixed CNTs in an ionic liquid and further coupled to the conductive nanomesh; and a plurality of free CNTs dispersed and moveable in the ionic liquid. Various methods of printing the CNTs and other structures, and methods of aligning and moving the CNTs using applied electric and magnetic fields, are also disclosed.

A method for manufacturing a wiring board which can simplify a manufacturing step. In a preparation step, a core board and an electronic component are prepared. In an insulating layer formation and fixing step, after accommodating the electronic component in an accommodation hole, a lowermost resin insulating layer is formed, and a gap between the electronic component and the core board is filled with a part of the lowermost resin insulating layer so as to fix the electronic component to the core board. In an opening portion formation step, a portion of the lowermost resin insulating layer located directly above the gap between the electronic component and the core board is removed so as to form an opening portion exposing a part of a core board main surface side conductor and a component main surface side electrode. In a main surface side connecting conductor formation step, a main surface side connecting conductor is formed in the opening portion so as to connect the core board main surface side conductor to the component main surface side electrode.

An electrolytic capacitor comprising a plurality of polymeric structures molded about the periphery of the anode pellet is described. The polymeric structures contact between a weld strap surrounding the butt seam between mating “clamshell” casing portions and the anode pellet sidewall. That way, the anode pellet is restrained from moving along both an x- and y-axes inside the casing. Having the cathode active material contacting the opposed major casing sidewalls being in a closely spaced relationship with the anode pellet through an intermediate separator prevents movement along the z-axis. The resulting capacitor is particularly well suited for use in high shock and vibration conditions.

Metal-carbon composite powders and methods for producing metal-carbon composite powders. The powders have a well-controlled microstructure and morphology and preferably have a small average particle size. The method includes forming the particles from an aerosol of powder precursors. The invention also includes novel devices and products formed from the composite powders.

An electrolytic capacitor is provided having a metal-glass-metal hermetic seal and a liquid seal, which protects the hermetic seal from the electrolyte solution in the capacitor. The liquid seal is formed by compressing an elastomeric ring between the underside of the lid of the capacitor and a terminal plate, connected to the capacitor element, whereby compression of the elastomeric seal is maintained by the lead, which connects the terminal plate and a metal post in the hermetic seal.

The invention discloses polyvinylidene fluoride/graphene composite and a preparation method thereof. The preparation method includes: reducing oxidation graphene by reductant, mixing the reduced graphene and polyvinylidene fluoride with N, N-dimethylacetamide solvent to be solution, drying and hot-pressing the solution to obtain the polyvinylidene fluoride/graphene composite. The prepared polyvinylidene fluoride/graphene composite has the following advantages that 1) dielectric constant of the polyvinylidene fluoride/graphene composite is high and can reach 7940 on the condition of 100Hz frequency and the weight percentage of the graphene is 0.02; and 2) flexibility is fine. Meanwhile, the preparation method has the advantages of simple operation and high stripping and dispersing degree of graphene and the like.

A method comprises mixing a nano-filler and a polymer composition to form a nanocomposite; extruding the nanocomposite as a melt through a spiral mandrel die to form a molten tube; expanding the tube biaxially by means of mechanical force and air pressure to form a bubble; and collapsing the bubble to form at least one sheet of a biaxially oriented nanocomposite film, wherein the biaxially oriented nanocomposite film has a breakdown strength of at least 300 V/micrometer.

A signal line and a pixel capacitor wire that doubles as a pixel capacitor electrode are fabricated parallel to each other from the same electrode layer through patterning thereof. Therefore, no additional steps are required to form the pixel capacitor wire. In such an arrangement, the pixel capacitor wire and the signal line are disposed parallel to each other; therefore, delays of signal transmission in the signal line and crosstalk between pixels are prevented from occurring. The active matrix substrate incorporating this arrangement is suitably used in liquid crystal display devices, image sensors, and the like. Similar advantages are available with an arrangement in which the signal line and the pixel capacitor wire are disposed parallel to each other, and the storage capacitor electrode, which will constitute a storage capacitor with the pixel electrode therebetween, and the scanning line are fabricated from the same electrode layer through patterning thereof.

A method of manufacturing a sensor for in vivo applications includes the steps of providing two wafers of an electrically insulating material. A recess is formed in the first wafer, and a capacitor plate is formed in the recess of the first wafer. A second capacitor plate is formed in a corresponding region of the second wafer, and the two wafers are affixed to one another such that the first and second capacitor plates are arranged in parallel, spaced-apart relation.