摘要:
A method for polishing a Cu film comprises contacting a Cu film formed above a semiconductor substrate with a polishing pad attached to a turntable, and supplying a first chemical liquid which promotes the polishing of the Cu film and a second chemical liquid which contains a surfactant, to the polishing pad while the turntable being rotated, thereby polishing the Cu film, while monitoring at least one of a table current of the turntable and a surface temperature of the polishing pad to detect a change in at least one of the table current of the turntable and the surface temperature of the polishing pad. The supply of the second chemical liquid is controlled in conformity with the change.
摘要:
A compound represented by formula (I); wherein ring A represents a nitrogen containing heterocyclic ring, ring B represents 5-membered heterocyclic ring which may have substituents, R represents a hydrogen atom or cyano and the other symbols represent as described in the specification; or a salt thereof. The compound represented by formula (I) has an inhibitory activity of DPP-IV, and therefore is useful as a preventive and/or treatment agent for type 2 diabetes mellitus, obesity, autoimmune disease, cancer metastasis, AIDS virus infection, dermatosis, prostatic hypertrophy and the like
摘要:
In a disk drive apparatus of the present invention, power transistors of a power supplying part execute high-frequency switching operation and form current paths to three-phase windings so as to rotate a disk, a position detecting part produces a position signal which responds with terminal voltages of the three-phase windings, an activation operation part controls active periods of the power transistors in response to an output signal of the position detecting part, a commanding part produces a command signal in response to an output pulse signal of the position detecting part, and a switching operation block produces a switching pulse signal in response to a comparison result of a current detection signal with the command signal. The activation operation part produces a slew-rate switching signal which responds with the switching pulse signal, and causes at least a power transistor of the power supplying part to follow the slew-rate switching signal, thereby executing high-frequency switching of the power transistor in response to the slew-rate switching signal.
摘要:
An image processing system with a buffer memory for use in a facsimile device. An image processing apparatus comprising an image read unit for operating continuously to read an image on an original document, a buffer memory for temporarily storing image data of the image on the original that is read by the image read unit, a compressing unit for compressing the image data stored in the buffer memory into code data, and a buffer memory controller for controlling the operation of writing the image data into the buffer memory and the operation of reading the image data from the buffer memory. The image data processing device with buffer memory, which can continuously operate an image input terminal and/or an image output terminal, using a buffer memory which has a less number of the memory elements than a page memory.
摘要:
In a method of producing dialkylcarbonate, alcoholic compound and cyclo-carbonate are subjected to a catalytic reaction each other at a reaction temperature of 20.degree. to 200.degree. C. and under a pressure of 0 to 40 kg/cm.sup.2 G, which keeps the reaction system liquid, in the presence of ion exchanged zeolite which is ion-exchanged with alkali metal ion and/or alkaline earth metal ion.
摘要:
A facsimile apparatus having a memory for storing received data therein and a recorder for printing out image signals, comprises a retaining unit for causing the memory to retain the received data after the image signal has been printed out, an operation unit for instructing to erase the stored data in the memory, and a deletion order storage unit for storing an order of deletion of the stored data, whereby the received data stored in the memory is retained until the operation unit instructs to erase the received data.
摘要:
There are disclosed halogeno-4-methylpyrazoles represented by the formula (I): ##STR1## wherein R represents an alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted phenyl group or a substituted or unsubstituted pyridyl group; X represents a hydrogen atom or a halogen atom; and Y represents a halogen atom, and a process for preparing the same which comprises reacting 1-substituted-4-methylpyrazoles of the formula (II): ##STR2## wherein R has the same meaning as defined above, with a halogen.
摘要:
A system for driving a brushless motor comprises motor drive coils belonging to a plurality of phases respectively, a plurality of pairs of drive transistors connected to the drive coils respectively, a distribution circuit for sequentially distributing drive-coil energization switching signals to the plural drive transistors respectively, a slope synthesizer for smoothing leading and trailing slope portions of the drive-coil energization switching signals so as to apply the smoothed energization switching signals to the drive transistors respectively through the distribution circuit, a voltage-controlled oscillator for supplying a signal having a suitable frequency as an input to the slope synthesizer, a phase error detector for detecting the phase difference between counter-electromotive voltages induced in the drive coils and the drive-coil energization switching signals in a driver-coil energization pause period, and an error amplifier for amplifying the output signal of the phase error detector and applying the amplified phase error signal as an input to the voltage-controlled oscillator.
摘要:
A composite material made of metal and rubber for use in automotive tires, hoses, conveyor belts and the like. Its object is to increase its durability by improving the adhesion properties between the metal and the rubber. To accomplish this object, a metal provided with an improved plating layer is used in combination with a rubber having such a composition as to be suitable for use with the metal. More specifically, the composite material of metal and rubber contains as basic ingredients a metal plated with a copper-zinc-nickel ternary alloy and natural rubber or synthetic isoplene rubber containing sulfer and adhesion promotors such as cobalt salt of organic acid or silica, resorcin and hexamethylenetetramine. The rubber is vulcanized to be bonded to the metal.