Abstract:
A microelectronic tunable capacitor and a method for fabricating the capacitor are described. The capacitor is formed by a micro-actuator, a first fixed capacitor plate and a second swayable capacitor plate suspended over the first plate. The micro-actuator is formed by a pair of fixed electrodes positioned spaced-apart from each other sandwiching without contact a suspended arm electrode swayable between the pair of fixed eletrodes. The second swayable capacitor plate is mounted to the suspended arm and sways by an electrostatic force between the pair of fixed electrodes to suitably adjust a desirable capacitance for the tunable capacitor.
Abstract:
A partially cut multi-planar flexible printed circuit comprises a substrate, a set of signal conducting elements for differential mode and common mode, a power supply and/or ground. The multi-planar flexible printed circuit is formed by partially grouped cutting a flexible printed circuit at a proper position so that the cross-sectional area of the multi-planar flexible printed circuit at the cut portion can fit in with a small round or square splice hole in addition to a flat rectangular slit for connecting, for example, a liquid crystal display with a notebook computer. Moreover, intervals between edges of a substrate and a plurality of transmission lines are preferably greater than three times of thickness of the substrate.
Abstract:
A pulse tube refrigerator which can generate cryogenic temperatures of below 10 K includes first and second refrigeration stages. Each stage includes a pulse tube and an associated regenerator provided at the low temperature side of the pulse tube. A pressure fluctuation generator having a compressor and a first to a fourth valve is provided at the high temperature side of each regenerator. The high temperature sides of each pulse tube are connected by a continuous channel while the high temperature side of each pulse tube and the high temperature side of each regenerator are connected by a by-pass channel. A magnetic material having a rare-earth element and a transition metal is used as a regenerative material for the regenerator. When pressure fluctuation is generated in each pulse tube at the phase difference angle of 180.degree., respectively, a working gas is transferred between the high temperature sides of each pulse tube, therefore, the phase angle between the pressure fluctuation in each pulse tube and the displacement of the working gas is optimized. Further, the flow amount of the operating gas sent to each regenerator is limited using a by-pass channel.
Abstract:
A multi-staged gas cycle refrigerator having a first stage regeneration part including a compression piston, a second stage regeneration part including a double inlet pulse tube and a buffer is described. Temperatures below 10K are achieved without leakage of refrigerant gas, this configuration resulting in the improvement of efficiency and reduction of cost.
Abstract:
A process for making high temperature superconducting oxide films comprising using a sintered body of Y--Ba--Cu--O or Bi--Sr--Ca--Cu--O oxide as a sputtering target and using a mixture of argon and oxygen as a sputtering gas, forming glow discharge between the substrate and the target under a pressure of 0.5-2.5 torr and at a sputtering current density of 5-35 mA/cm.sup.2, and then cooling the substrate after the oxide film has been grown to a desired thickness. The critical temperature of the in-situ produced superconducting oxide film of Y--Ba--Cu--O is 90 K. and that of Ba--Sr--Ca--Cu--O is 80 K.An apparatus for the preparation of high temperature superconducting oxide films is also provided. The apparatus for in-situ making such high temperature superconducting oxide film is easy to heat the substrate and control its temperature without problems of conventional deposition methods.
Abstract translation:一种制造高温超导氧化物膜的方法,包括使用Y-Ba-Cu-O或Bi-Sr-Ca-Cu-O氧化物的烧结体作为溅射靶并使用氩和氧的混合物作为溅射气体, 在0.5-2.5托的压力和5-35mA / cm 2的溅射电流密度下,在基板和靶之间形成辉光放电,然后在氧化膜生长至期望厚度之后冷却基板。 Y-Ba-Cu-O原位生产的超导氧化膜的临界温度为90K,Ba-Sr-Ca-Cu-O的临界温度为80K。一种制备高温超导氧化物的设备 还提供电影。 用于原位制造这种高温超导氧化物膜的设备容易加热基底并控制其温度而没有常规沉积方法的问题。
Abstract:
An improved process for manufacturing silicone-containing polymer particles is provided. The process is particularly useful for preparing uniform, crosslinked silicone rubber particles of controlled particle size distribution and submicron size. In another embodiment, the process can be used to modify the surface properties of silicone-containing polymers to improve their compatibility with and dispersion into other polymers.
Abstract:
A composite flexible circuit planar cable includes a flat cable, a first section, and a second section. The flat cable includes a plurality of straight line like parallel and non-jumping conductor lines. At least one jumping line is formed on the first section to interchangeably connect a selected conductive line of the first section to an another selected conductive line. The second section may also form at least one jumping line to interchangeably connect a selected conductive line of the second section to an another selected conductive line. Through such a jumping line, electrical connection can be formed between signal terminals and corresponding and interchanged signal terminals. The plurality of conductor lines of the flat cable includes at least a pair of differential signal conductor lines, a grounding line, and a power line.
Abstract:
A new jacket design method is disclosed, especially for deepwater water heavy jacket applications. The method utilizes a special type of air bags, called Ship Launching Air Bags (SLAB), to provide low cost temporary buoyancy used for jacket installation purpose only. A designer only needs to satisfy the jacket stiffness for the resistance of environmental and gravity loads without the consideration of jacket reserve buoyancy. The required jacket reserve buoyancy could be increased with the utilization of temporally attached SLABs during the jacket installation.
Abstract:
Methods and apparatus to provide loop parallelization based on loop splitting and/or index array are described. In one embodiment, one or more split loops, corresponding to an original loop, are generated based on the mis-speculation information. In another embodiment, a plurality of subloops are generated from an original loop based on an index array. Other embodiments are also described.