Abstract:
An image reading apparatus includes a scanner which has a document table for loading a document on the upper part of a main body, detects optical image information reflected from the document, and reads the document image, a support member for surrounding the main body, a plurality of cushioning members installed between the main body and the support member at the position for supporting the load of the main body for preventing transfer of vibration from the support member to the main body, and at least one adjustable bracket which is mounted on the main body, can adjust the support height of the main body to the support member, and supports the cushioning members.
Abstract:
An image reading apparatus includes a scanner which has a document table for loading a document on the upper part of a main body, detects optical image information reflected from the document, and reads the document image, a support member for surrounding the main body, a plurality of cushioning members installed between the main body and the support member at the position for supporting the load of the main body for preventing transfer of vibration from the support member to the main body, and at least one adjustable bracket which is mounted on the main body, can adjust the support height of the main body to the support member, and supports the cushioning members.
Abstract:
Field effect transistors of an integrated circuit are fabricated on a silicon substrate, and require gate insulating layers appropriate for the purpose of individual component circuits, the active areas assigned the field effect transistors are sequentially exposed to source gas varied in the ratio between oxygen and nitrogen for growing silicon oxide and/or silicon oxynitride thereon, and the nitrogen serves as a diffusion inhibitor against the oxygen so as to form the gate insulating layers different in thickness of the order of several angstroms.
Abstract:
A metal oxide Semiconductor (MOS) transistor includes a gate insulating film disposed on a surface of a silicon substrate. The gate insulating film has a central portion formed on the silicon substrate and comprising a nitride insulating film, and an end portion located on each side of the central portion, the end portion being thicker than the central portion and formed of an oxide insulating film. The MOS transistor also includes a p-type gate electrode formed on the gate insulating film, sidewalls formed on both sides of the gate insulating film and the gate electrode, a pair of p-type source/drain areas formed in surface portions of the silicon substrate, and a channel area located between the pair of source/drain areas.
Abstract:
A method for fabricating a very thin oxide film, such as a gate oxide film of a MOS transistor, by oxidizing a substrate, which method can accurately and easily control the thickness of the oxide film to a desired value. The method comprises controlling thickness of the oxide film to be formed, by adjusting partial pressure of oxygen in an ambient including oxygen, without changing temperature of oxidation of said substrate and time of oxidation of said substrate. Alternatively, the method comprises controlling thickness of the oxide film to be formed, by adjusting only pressure of an oxidizing ambient, without changing temperature of oxidation of said substrate and time of oxidation of said substrate.
Abstract:
A storage capacitor incorporate in a semiconductor dynamic random access memory cell has an accumulating electrode of p-type polysilicon electricaly conencted to an n-type drain region of an associated switching transistor, a dielectric film structure covering the accumulating electrode and a counter electrode opposed through the dielectric film structure and formed of a p-type polysilicon, and the dielectric film structure is thinner than a critical thickness for a direct tunneling current by virtue of the wide potential barrier between the dielectric film structure and the p-type polysilicon and the Fermi level of the p-type polysilicon falling into the forbidden band of the other p-type polyslicon.
Abstract:
A logic circuit has a logic circuit portion which includes a first MOS transistor circuit, a second MOS transistor circuit and a third MOS transistor circuit for conducting a logical operation. The logic circuit also has a first and a second bipolar transistor for driving a next stage logic circuit and an N-channel MOS transistor for discharging the charge in the base of the second bipolar transistor. There is provided an inverter circuit whose input terminal is connected either to the output terminal or the base of the first bipolar transistor. An input to the gate of the N-channel MOS transistor is supplied from the output terminal of the inverter circuit so that, when the output changes from its high level to its low level, there is no possiblity for the first and second bipolar transistors to turn to their ON-state at the same time. Consequently, all of the current which is to be supplied from the third MOS transistor circuit to the base of the second bipolar transistor flows thereto without by-passing and, as a result, there is no reduction in the collector current of the second bipolar transistor. Thus, it is possible to have the load capacitance at the next stage discharged at a high speed and hence to have the circuit operate at a high speed.
Abstract:
A flue gas containing SO.sub.x, NO.sub.x and O.sub.2 is washed with an alkaline aqueous solution containing a NO.sub.x removal catalyst to form the salts of a dithionate, a sulfate and an imidobissulfate. The salts are crystallized, separated and heated for pyrolysis by a pneumatic conveying pyrolysis unit whereby a gas containing higher concentration of SO.sub.2 is obtained. The gas is fed into the alkaline aqueous solution together with the flue gas so as to improve the efficiency.
Abstract:
A system and method for scanning a document having a plurality of pages includes scanning a first page in the document at a first scanning speed, the first scanning speed being one of a color speed and a monochromatic speed, and determining if the first page is color or monochrome based on a result of the scan of the first page. If the first speed is the monochromatic speed and the first page is determined to be color, or if the first speed is the color speed and the first page is determined to be monochrome, then the first page is rescanned at a second scanning speed, the second scanning speed being the other of a color speed and a monochromatic speed.
Abstract:
A method of manufacturing a semiconductor device includes the step of forming a capacitor. The step includes the step of forming a lower electrode constituted by a polysilicon film which selectively covers a surface of a predetermined insulating film on a semiconductor substrate, and the step of performing heating in an atmosphere containing an SiH.sub.4 gas and removal of a native oxide film on a surface of the lower electrode, and then performing formation of a silicon nitride film without being exposed to an oxygen atmosphere.