Abstract: In accordance with an embodiment, a manufacturing method of a semiconductor device includes manufacturing a mask pattern and forming an interconnection using the mask pattern. The manufacturing the mask pattern includes forming a first pattern of a first material, depositing a second material over the first pattern, forming a first sidewall film on sidewalls of the first pattern by a first etchback, depositing a third material over the first sidewall film, forming a second sidewall film on sidewalls of the first sidewall film by a second etchback, adjusting the first pattern and second sidewall film so as to have the same height, and selectively removing the first sidewall film. The first pattern has a line width of a first width equal to the thicknesses of the first and second sidewall films. The mask pattern includes a line-and-space having a line width and a space equal to the first width, respectively.

Abstract: In a non-volatile semiconductor memory device, first element isolation insulation layers in a memory cell area are formed by burying a first oxide film in first element isolation trenches of the memory cell area. The top surface of the first oxide film is positioned at a level between the top surface of a semiconductor substrate and the top surface of a first gate electrode. Each of second element isolation insulation layers in a peripheral area includes a first oxide film embedded in the entirety of second element isolation trenches of the peripheral area, and a second oxide film formed on the first oxide film. The top surface of the first oxide film is at a higher level than the top surface of the semiconductor substrate. The top surface of the second oxide film is at a higher level than the top surface of a first conductor film.

Abstract: A semiconductor device includes a semiconductor substrate formed with a plurality of first element isolation trenches having respective first opening widths and a plurality of second element isolation trenches having larger opening widths than the first opening widths, element isolation insulating films buried in the first element isolation trenches so that upper parts of the trenches have partial openings, respectively and buried in the second element isolation trenches respectively, and coating type oxide films formed so as to fill the openings of the first element isolation trenches, respectively. The coating-type oxide films are not buried in the second element isolation insulating trenches.

Abstract: A leaf switch may include a cam body formed with a plurality of cam parts in a multistage shape and a plurality of leaf contact pieces which are extended toward the cam body and whose tip end sides of the plurality of leaf contact pieces are respectively abutted with the plurality of cam parts, and base end sides of the plurality of leaf contact pieces are held at the same height position. Further, an ice making device may include a water supply leaf switch for controlling water supply from a water-supply part to an ice tray, and a water supply amount adjust mechanism which includes an operation member that causes a leaf contact piece to deform to adjust a timing when the water supply switch is turned on or off. Further, an ice making device may include an ice detecting lever and a lever position detecting mechanism which detects ice amount in an ice storage part by detecting a position of the ice detecting lever.

Abstract: A torque limiter may include a first member provided with a circumferential face, a second member provided with a base plate part and a cylindrical drum part which is extended from the base plate part so as to surround the circumferential face of the first member, and an urging member for urging the cylindrical drum part of the second member to the circumferential face of the first member. The cylindrical drum part is formed with a plurality of cutout parts to be divided into a plurality of elastic plate parts. The cutout part is extended from a tip end of the cylindrical drum part to a middle position in a radial direction of the base plate part and the elastic plate part is formed of the cylindrical drum part and the base plate part.

Abstract: A semiconductor device includes a semiconductor substrate formed with a plurality of first element isolation trenches having respective first opening widths and a plurality of second element isolation trenches having larger opening widths than the first opening widths, element isolation insulating films buried in the first element isolation trenches so that upper parts of the trenches have partial openings, respectively and buried in the second element isolation trenches respectively, and coating type oxide films formed so as to fill the openings of the first element isolation trenches, respectively.

Abstract: An ice making device may include an ice making unit having an ice tray and a heater; and a drive unit connected with the ice making unit. The drive unit may include a drive source, a cam body driven by the drive source, a leaf switch in which a leaf contact piece is displaced by a cam face of the cam body to perform “ON” or “OFF” operation, and a case body. The case body is provided with a first partition wall which partitions the inside of the case body into a first space and a second space, and the leaf switch and at least the cam face of the cam body is disposed in the second space. The first space may be preferably located on an ice making unit side and the first space is interposed between the second space and the ice making unit.

Abstract: A semiconductor device includes a semiconductor substrate formed with a plurality of first element isolation trenches having respective first opening widths and a plurality of second element isolation trenches having larger opening widths than the first opening widths, element isolation insulating films buried in the first element isolation trenches so that upper parts of the trenches have partial openings, respectively and buried in the second element isolation trenches respectively, and coating type oxide films formed so as to fill the openings of the first element isolation trenches, respectively.

Abstract: A torque limiter may include a first member provided with a circumferential face, a second member provided with a base plate part and a cylindrical drum part which is extended from the base plate part so as to surround the circumferential face of the first member, and an urging member for urging the cylindrical drum part of the second member to the circumferential face of the first member. The cylindrical drum part is formed with a plurality of cutout parts to be divided into a plurality of elastic plate parts. The cutout part is extended from a tip end of the cylindrical drum part to a middle position in a radial direction of the base plate part and the elastic plate part is formed of the cylindrical drum part and the base plate part.

Abstract: An ice making device may include an ice tray, a raking member disposed on an upper side of the ice tray for raking out ice pieces from the ice tray, a water-supply port disposed on a side of the ice tray for supplying water to the ice tray, and a drive control part for driving the raking member and for controlling supply of water from the water-supply port to the ice tray. The raking member is provided with a plurality of raking parts which are protruded sideward from the rotation shaft for raking out the ice pieces from the respective recessed parts for ice making, and the drive control part supplies water from the water-supply port to the ice tray at a time when the raking parts are located to be apart from the water-supply port. Preferably, the drive control part supplies water when the raking parts are located on an opposite side to the water-supply port with respect to the rotation shaft.

Abstract: A manufacturing method for an ice making device which includes an ice tray, a heater for heating the ice tray, and a drive unit having a drive source for discharging ice pieces from the ice tray and is capable of supplying power to the heater, may include integrating the ice tray with the heater to previously manufacture an ice making unit, and then connecting the ice making unit with the drive unit to manufacture the ice making device. The ice making device in which assembling efficiency can be enhanced and sticking of fragments and dirt to an ice tray can be prevented is manufactured by the above-mentioned method.

Abstract: A leaf switch may include a cam body formed with a plurality of cam parts in a multistage shape and a plurality of leaf contact pieces which are extended toward the cam body and whose tip end sides of the plurality of leaf contact pieces are respectively abutted with the plurality of cam parts, and base end sides of the plurality of leaf contact pieces are held at the same height position. Further, an ice making device may include a water supply leaf switch for controlling water supply from a water-supply part to an ice tray, and a water supply amount adjust mechanism which includes an operation member that causes a leaf contact piece to deform to adjust a timing when the water supply switch is turned on or off. Further, an ice making device may include an ice detecting lever and a lever position detecting mechanism which detects ice amount in an ice storage part by detecting a position of the ice detecting lever.

Abstract: A semiconductor device includes a semiconductor substrate formed with a plurality of first element isolation trenches having respective first opening widths and a plurality of second element isolation trenches having larger opening widths than the first opening widths, element isolation insulating films buried in the first element isolation trenches so that upper parts of the trenches have partial openings, respectively and buried in the second element isolation trenches respectively, and coating type oxide films formed so as to fill the openings of the first element isolation trenches, respectively.

Abstract: A multicylinder internal combustion engine is provided with a plurality of cylinders sharing a single crankshaft. The combustion characteristics in the respective cylinders is improved by taking out part of combustion (expansion) gas produced in one of the cylinders at an earlier stage of the explosion (expansion) stroke, and then introducing the gas into another one of the cylinders in the suction or compression stroke.

Abstract: Disclosed herein is a torque limiter device which is provided with an inner ring and an outer ring and the inner ring and the outer ring operate together to transmit an input torque to an output member constituted of one of the inner ring and the outer ring as long as the torque is not more than a set torque. One of the input member and the output member is provided with an engagement groove, and the other of the input member and the output member is provided with a coil spring for pressing into the engagement groove an engaging member which is to engage with the engagement groove. When the input torque applied to the input member exceeds the set torque level, the engaging member deforms the coil spring to disengage from the engagement groove, resulting in the input torque not being transmitted to the output member.

Abstract: The present invention provides a torque limiter with an easy maintenance feature. It is capable of alignment and bidirectional rotation. The present invention overcomes the problems of torque limiters of conventional technology by providing a torque limiter comprising an inner ring and an outer ring wherein when a torque is applied to an input member, which is inner ring or outer ring, is less than a set torque, the inner ring and the outer ring move in response to each other. Stopper grooves are provided on inner ring or outer ring and a flat spring is provided on inner ring or outer ring such that it pushes roller pins against stopper grooves; wherein when the torque applied to roller pins exceeds a set torque, roller pins cause flat spring to elastically deform such that roller pins come out of stopper grooves. Inner ring and outer ring are thus uncoupled.

Abstract: A closing device for a toilet unit includes a slave member connected to a toilet cover, a motor, and a switching mechanism that mechanically connects or disconnects the motor from the slave member during closing of the cover. When the motor rotates to move the toilet cover from an open position to a partially closed position, the switching mechanism allows the slave member to move in response to rotation of the motor. After the toilet cover reaches the partially closed position, the mechanical link between the slave member and the motor provided by the switching mechanism is released such that the toilet cover falls freely under its own weight to the closed position independent of the motor. Preferably, the device includes a driving member coupled between the motor and the switching mechanism and operable to move the slave member.

Abstract: A multicylinder internal combustion engine is provided with a plurality of cylinders sharing a single crankshaft. The combustion characteristics in the respective cylinders is improved by taking out part of combustion (expansion) gas produced in one of the cylinders at an earlier stage of the explosion (expansion) stroke, and then introducing the gas into another one of the cylinders in the suction or compression stroke.

Abstract: A closing device for a toilet unit includes a slave member connected to a toilet cover, a motor, and a switching mechanism that mechanically connects or disconnects the motor from the slave member during closing of the cover. When the motor rotates to move the toilet cover from an open position to a partially closed position, the switching mechanism allows the slave member to move in response to rotation of the motor. After the toilet cover reaches the partially closed position, the mechanical link between the slave member and the motor provided by the switching mechanism is released such that the toilet cover falls freely under its own weight to the closed position independent of the motor. Preferably, the device includes a driving member coupled between the motor and the switching mechanism and operable to move the slave member.

Abstract: The refrigerator includes a plurality of rooms separated by partition walls; an air blower to send cooling air cooled by an evaporator into a refrigerator box; a fan motor 65 to drive the air blower; a damper device 50 to adjust an amount of the cooling air of at least one room, of amounts of cooling air flowing into the rooms; and control means 2 and 93 for driving the fan motor 65 without fail just before the baffle of the damper device 50 is opened. The temperature at which the bimetal thermo-switch 2 moves from one terminal 2a to the other terminal 2b, is set lower than the temperature at which the bimetal thermo-switch 93 moves from the closing terminal 93b side to the opening terminal 93a side, and the bimetal thermo-switch 2 is made to move to the other terminal 2b side before the baffle moves from the close-status to the open-status.