31results about How to "Guaranteed insulation properties" patented technology

The present invention discloses a high voltage ceramic and glass insulator with the function of resisting pollution flashover and its preparation method. Said method includes the following processes: firstly, preparing titanium dioxide base sol, adding surfactant into the sol, then applying the titanium dioxide sol containing the above-mentioned surfactant or containing no surfactant on the surface of high-voltage ceramic and glass insulator, low-temperature heat treatment to make the titanium dioxide sol be solidified on the insulator surface so as to form a layer of nano inorganic film capable of raising pollution flashover resisting function of genral ceramic insulator.

The invention provides an electromagnetic relay excellent in insulating property and high in opening and closing characteristics and productivity. Therefore, a pair of pedestal portions for coil terminals are arranged in the outer circumferential edge portion of the lower flange portion of a spool. A coil drawing-out groove continuously connected to the upper face of the above pedestal portion for a coil terminal is formed along the outer circumferential edge portion of the above lower flange portion. A storing concave portion able to store a shading coil attached to a magnetic pole portion of an iron core projected from a central hole of the above spool is formed on the lower face of the above lower flange portion.

The invention relates to a power semiconductor module packaging structure and a packaging method thereof. A resin or other curable material is injected into a gap of a specially processed metal circuit layer and then solidification is carried out; the metal circuit layer and a heat-conducting insulating resin film are pressed on a metal bottom plate; and bubbles in the gap of the metal circuit layer and in the heat-conducting insulating resin film are removed and solidified by using the solidified material, so that the insulation property is ensured. Or bubbles in the heat-conducting insulating resin film are removed and solidified by using the solidification process of the plastic-packaging resin in the plastic-packaging process, so that the insulation property is ensured. Therefore, themetal circuit layer with the small gap and the large thickness can be formed on the heat-conducting insulating resin film even when a Pinfin metal bottom plate, a metal bottom plate with one side being a non-plane surface, or a metal bottom plate with a water-cooled flow path inside. The module based on the structure has advantages of low thermal resistance, small deformation and high reliability.

The invention discloses an ultra-low power consumption ferroelectric transistor memory based on a two-dimensional organic functional material and a preparation method thereof. An aluminum oxide insulating layer is grown on a substrate by an atomic beam deposition method, and then an antisolvent is used to An ultrathin crystalline ferroelectric polymer film was prepared at room temperature by assisted crystallization, and then an ultrathin layer of polymethyl methacrylate and an ultrathin layer of dioctyl Dioctylbenzothiophene benzothiophene, and finally a gold film was transferred onto the dioctylbenzothiophene benzothiophene layer as source and drain electrodes using a non-invasive gold film transfer process. The present invention uses the quasi-two-dimensional ferroelectric polymer crystalline film as the dielectric layer and the two-dimensional organic molecular crystal C 8 ‑BTBT material is used as a semiconductor layer to prepare fast transistor memory, which can greatly reduce the power consumption of ferroelectric organic field effect transistor memory, and has low-voltage operation capability and fast storage capability.

An apparatus for manufacturing polysilicon using a chemical vapor deposition (CVD) reactor is provided. The apparatus for manufacturing polysilicon includes: a reaction chamber including a substrate and a reactor cover; at least a pair of electrodes installed through the substrate by an insulating member and connected with a power supply; at least a pair of filaments which are coupled with the pair of electrodes by an electrode chuck and of which upper ends are connected to each other; and a cover assembly including an electrode cover surrounding an upper surface and a side of each of the pair of electrodes on the substrate and a cover shield covering the upper surface of the electrode cover.

The invention relates to a motor manufacturing method and a motor. The motor comprises a cylindrical stator core and a coil. The stator core is internally provided with a containing cavity. The motormanufacturing method comprises the following steps of placing the coil in the containing cavity so as to enable the coil to form a containing part contained in the containing cavity and an extending part configured to extend out of the containing cavity from the two sides of the stator iron core in the axial direction of the stator iron core; and an extending part pouring and sealing die arrangedon the outer side of the extending part in a sleeved mode and provided with an inner cavity. A containing part pouring and sealing die provided with an inner cavity is arranged in the containing cavity in a sleeved mode. The containing part is contained in the containing part pouring and sealing die. The pouring and sealing fluid is poured into the interior of the containing part pouring and sealing die and the interior of the extending part pouring and sealing die. When the pouring and sealing fluid is solidified, the containing part pouring and sealing die and the extending part pouring andsealing die are disassembled. The motor manufactured by the method is relatively high in reliability.