983results about How to "Good electrical contact" patented technology

A port terminator includes an outer nut, which may be either electrically conductive or non-electrically conductive, and an electrically conductive ground insert. A portion of the ground insert captures a ground portion of a termination resistor, while a deformable portion of the ground insert makes electrical contact with a connection end of an equipment port when the port terminator is screwed onto the equipment port. The deformable portion can take the form of a flexible brim or a plurality of petals. The petals preferably alternate between flat petals and biased petals. The ground insert permits the port terminator to make a uniform RF seal on an equipment port even with a range of tightening torques.

An electronic cigarette includes an absorption stem and a power source stem; the absorption stem has a first and second absorption stem electrodes contained therein; the power source stem has a first and second power source stem electrodes contained therein; when the absorption stem and power source stem are connected with each other, the first absorption stem electrode is electrically connected to the first power source stem electrode, while the second absorption stem electrode is electrically connected to the second power source stem electrode. The absorption stem and power source stem are connected together by magnetic force absorption. The power source stem and absorption stem of the electronic cigarette of the present invention are connected with each other by means of magnetic force absorption, thus leading to easy assembling and disassembling, simple construction, easy repair and replacement, good electrical contact, and long lifetime.

A composite hard mask is disclosed that enables sub-100 nm sized MTJ cells to be formed for advanced devices such as spin torque MRAMs. The hard mask has a lower non-magnetic metallic layer such as Ru to magnetically isolate an overlying middle metallic spacer such as MnPt from an underlying free layer. The middle metallic spacer provides a height margin during subsequent processing to avoid shorting between a bit line and the MTJ cell in the final device. An upper conductive layer may be made of Ta and is thin enough to allow a MTJ pattern in a thin overlying photoresist layer to be transferred through the Ta during a fluorocarbon etch without consuming all of the photoresist. The MTJ pattern is transferred through the remaining hard mask layers and underlying MTJ stack of layers with a second etch step using a C, H, and O etch gas composition.

An electrode assembly includes one or more electrode contact surfaces, and a cuff, to which the contact surfaces are fixed, and which comprises an electrically insulating material, is configured to assume open and closed positions, and, when in the closed position, is shaped so as to define a plurality of planar cross sections perpendicular to a longitudinal axis of the cuff, distributed continuously along an entire length of the cuff along the longitudinal axis, such that the perpendicular cross sections define respective inner closed curves that together define an inner surface that defines and completely surrounds a volume that extends along the entire length of the cuff. The inner closed curves of at least two of the perpendicular cross sections would cross, and not merely intersect, one another if superimposed while preserving orientation and position of the perpendicular cross sections with respect to the cuff. Other embodiments are also described.

The invention relates to a phosphate material having a mesoporous structure for lithium secondary batteries and a preparation method thereof. The material having a mesoporous structure is secondary particles which have a mesoporous spherical or spheroid shape and are formed by the agglomeration of primary particles; the chemical composition of the material having the mesoporous structure is represented by the formula of LixAaMmBbPOzNn; the average particle diameter of the primary particles is 10nm to 1mum, the average particle diameter of the secondary particles is 100nm to 50mum, the average pore diameter of mesopores is 2 to 500nm; and the material having the mesoporous structure also comprises a layer of 2 to 100nm thick carbon coated outside the secondary particles and on the inner walls of the mesopores, wherein the content of the carbon accounts for 1 to 20 weight percent of the total weight of a substrate. The material is prepared by the steps of: firstly preparing pure-phase phosphate LiMPO4 or doped LiMPO4 sol; secondly, forming dry gel through heat treatment; and finally, forming the agglomerate secondary particles through sintering at high temperature. The phosphate material having the mesoporous structure can be directly used in secondary lithium batteries as an anode active material and can also be used by being mixed with the prior anode material as an additive. The material having the mesoporous structure can improve the rate performance and energy density of the prior anode material and batteries. The secondary lithium batteries containing the phosphate material having the mesoporous structure has high power density and high safety.