摘要:
A reference pressure of melted material injected to a mold cavity of a mold is set as a function of injection passing time from a start of an injecting process or a function of a distance of movement of an injection plunger, and the movement of the plunger is started at a temporarily constant injection speed. A correction value of the injection speed is obtained to eliminate a difference between a sensed pressure of the melted material injected to the mold cavity of the mold and the reference pressure in a range that the sensed pressure of the melted material exceeds the reference pressure during the injection passing time from the start of the injection process wherein the plunger is started to move or during the movement of the plunger, and the injection speed is corrected in accordance with the corrected value. The corrected value of the injection speed, and the injection passing time from the start of the injection process or the distance of the movement of the plunger, those of which corresponding to the range, are memorized in a memory unit, and are characterized to a desired injection speed pattern, and the pattern is read out from the memory unit as an injection molding speed condition.
摘要:
The barrel temperature control apparatus for an injection molding machine can execute the barrel temperature control in such a way as to optimize the disturbance suppression characteristics. The temperature control section 7 comprises the manipulated variable addition and subtraction section 14 at the rear stage of the PiD control section 12 in such a way that the barrel temperature of the injection molding machine 1 can be controlled under both feedback and feed-forward. Further, when the same products are molded continuously, the barrel temperature is feed-forward controlled on the basis of the learned change manipulated variable.
摘要:
A tray is provided in combination with an electronic component attaching tool attached to the tray and includes an attachment depression part that includes an inner wall and to which an electronic component is attached, wherein forming of the inner wall of the attachment depression part does not substantially depend on an external shape of the electronic component, and a standard part formed in the inner wall of the attachment depression part and engaging with a first structure part of the electronic component attaching tool to align a position of the electronic component attaching tool to the standard part when a position of the electronic component is aligned to a first position of the tray using the electronic component attaching tool, the standard part having a shape which does not substantially depend on the external shape of the electronic component.
摘要:
A semiconductor device packaging structure is disclosed that can improve reliability of a performance test for the semiconductor device and prevent damage to the semiconductor device during transportation or packaging for shipment. An IC cover is attached to the semiconductor device, which has height unevenness because it includes semiconductor chips and electric parts having different heights. The IC cover includes projecting portions and a base portion. After being attached to the semiconductor device, the projecting portions stand in a free area in the semiconductor device, and the base portion is supported by the projections to be separated from the semiconductor chips and electric parts in the semiconductor device. The IC cover is detachably attached to the semiconductor device.
摘要:
A prober includes a probe card provided with a support board and a probe attached to the support board, a stage on which a measurement wafer is mounted, a camera provided over the probe card to observe an electrode pad of a first semiconductor chip formed on the measurement wafer, and a stage moving unit for moving the position of the stage relative to the probe card.
摘要:
A method for protecting a semiconductor device is disclosed that can improve reliability of a performance test for the semiconductor device and prevent damage to the semiconductor device during transportation or packaging for shipment. An IC cover is attached to the semiconductor device, which has height unevenness because it includes semiconductor chips and electric parts having different heights. The IC cover includes projecting portions and a base portion. After being attached to the semiconductor device, the projecting portions stand in a free area in the semiconductor device, and the base portion is supported by the projections to be separated from the semiconductor chips and electric parts in the semiconductor device. The IC cover is detachably attached to the semiconductor device.
摘要:
A semiconductor testing device is used for testing a semiconductor device which has at least one spherical connection terminal. The testing device includes an insulating substrate having an opening formed therein at a position corresponding to the position of the spherical connection terminal, and a contact member, formed on the insulating substrate, including a connection portion which is connected with the spherical connection terminal, at least the connection portion being deformable and extending into the opening.
摘要:
A semiconductor substrate eliminates a restriction caused by a width of scribe lines so as to increase a number of semiconductor elements formed on the semiconductor substrate. A plurality of semiconductor element areas are formed by forming a plurality of unit exposed and printed areas, each of which contains the semiconductor element areas. A first scribe line extends between the semiconductor element areas formed within the unit exposed and printed area. A second scribe line extends between the unit exposed and printed areas. A width of the first scribe line is different from a width of the second scribe line.
摘要:
A contactor has a contactor substrate and a plurality of contact electrodes formed on the contactor substrate. Each contact electrode is formed by a metal wire bent between one end joined to the contactor substrate and the other end. An inclined plane is formed by a cutting surface. A fracture surface formed by a tension fracture is formed at the apex portion of the contact electrode.
摘要:
A composition for hair treatment such as hair rinse, shampoo, or hair conditioner, contains (a) 0.1-10 wt. % of a modified silicone polymer having at least one alkoxy group in the molecule and a melting point of not lower than 30.degree. C., (b) 0.1-20 wt. % of a cationic surface active agent, (c) 0.1-30 wt. % of an oily or fatty material, (d) 0.1-90 wt. % of an organic liquid which is compatible with water and of which molecule has at least one hydroxy group, and (e) water.