摘要:
A negative capacitance logic device includes a first field effect transistor (FET) and a second FET. The first FET is coupled between a power supply voltage and an output node, and the first FET includes a ferroelectric having a negative capacitance. The second FET is coupled between the output node and a ground voltage, and the second FET includes a ferroelectric having a negative capacitance. The negative capacitance logic differentiates an input voltage applied to an input node to provide an output voltage at the output node.
摘要:
Disclosed is an electric parking brake commonly used as a single puller type or a dual puller type. The electric parking brake includes an actuator housing; a parking cable connected to a brake that applies braking force to wheels of a vehicle; a motor generating driving force to operate the parking brake; a reduction gear unit for transferring power of the motor; a screw nut unit including a gear member connected to the gear reduction unit, a nut member connected to the gear member, and a screw member connected to a first parking cable of the parking cable while moving relative to the nut member; and a displacement sensor connected to the nut member of the screw nut unit. The displacement sensor includes a sensor housing, a magnet housing that moves relative to the sensor housing, a magnet elastic member elastically supported between the sensor housing and the magnet housing, a magnet provided in the magnet housing, and a hall IC provided in the sensor housing. The magnet housing is coupled with a second parking cable of the parking cable or the actuator housing.
摘要:
A method for controlled delivery of a substance into a body includes administering a plurality of containment vessels into the body, in which each of the plurality of containment vessels includes a quantity of the substance loaded therein prior to the administering; and providing a time-varying magnetic field such that the plurality of containment vessels are exposed thereto to cause a release of at least a portion of the substance from the plurality of containment vessels. Each of the plurality of containment vessels has an average outer diameter less than about 1 μm.
摘要:
A method of manufacturing graphene includes forming a germanium layer on a surface of a substrate, and forming the graphene directly on the germanium layer by supplying carbon-containing gas into a chamber in which the substrate is disposed.
摘要:
A clock frequency adjusting method capable of reducing power consumption without reducing a response speed for a command output from a host in an idle mode is provided. In the clock frequency adjusting method, a central processing unit (CPU) generates a detection signal according to whether an interrupt signal is activated, and a frequency adjusting circuit provides a clock signal having a first frequency or a second frequency higher than the first frequency to the CPU in response to the detection signal.
摘要:
Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode.
摘要:
An object of the present invention is to provide the device for protecting a secondary battery safely from overvoltage and overheating caused by the overcharge by using simple safety device, which provides a contacted safety device which connects between a constant voltage element showing a discharge characteristic in the state of overvoltage and a MIT (metal insulator transition) element showing a discharge characteristic in the state of overheating. Each of the constant voltage element and the MIT element are connected in parallel between a cathode lead and an anode lead of the secondary battery. The contacted safety device has a characteristic combining a discharge/heat dissipation characteristic of the constant voltage element and a discharge characteristic of the MIT element which immediately responds to the heat dissipation of the constant voltage element, resulting in effect of preventing overcharge advantageously since the contacted safety device makes discharge in terms of 2 factors of voltage and temperature in case of overcharge.
摘要:
Disclosed is a secondary battery having a constant-voltage device for preventing the secondary battery from being excessively overcharged. The breakdown voltage of the constant-voltage device is lower than the explosion or ignition voltage of the secondary battery, so the discharge operation may occur before the secondary battery is exploded or ignited even if the voltage of the secondary battery rises above the overcharge voltage, thereby protecting the secondary battery from explosion or ignition. The leakage current value of the constant-voltage device is less than 0.05% of the capacity value of the secondary battery under the maximum charge voltage of the secondary battery, or the breakdown voltage of the constant-voltage device is higher than the maximum charge voltage of the secondary battery. Thus, the constant-voltage device rarely generates the leakage current even if the secondary battery has been charged with the maximum charge voltage.
摘要:
A process chamber used in the manufacture of a semiconductor device for etching a material layer on a semiconductor wafer includes an electrostatic chuck for holding the semiconductor wafer, and an annular edge ring which surrounds the side of the semiconductor wafer on the electrostatic chuck to prevent the semiconductor wafer from departing from its original position. The annular edge ring has a first side which faces the side of the semiconductor wafer and contacts firmly with the side of the semiconductor wafer.
摘要:
The present invention relates to an aromatic polyamide pulp and its preparing process which has both excellent physical properties and high degree of polymerization wherein aromatic diamine is reacted with aromatic diacid chloride in amides and/or urea-based polymerization solvent containing inorganic salts and/or a little of Lewis acid compound. The present invention can easily provide the pulp of high polymerization degree and high orientation by stirrer in the continuous transferable polymerization-orientation-gelation apparatus within a short time without use of a tertiary amine affecting human body and without regard to isotropic or anisotropic, and continuous or uncontinuous ejection.