Abstract:
A semiconductor device comprising: a semiconductor element having a plurality of electrodes; a passivation film formed on the semiconductor element in a region avoiding at least a part of each of the electrodes; a conductive foil provided at a given spacing from the surface on which the passivation film is formed; an external electrodes formed on the conductive foil; intermediate layer formed between the passivation film and the conductive foil to support the conductive foil; and wires electrically connecting the electrodes to the conductive foil; wherein a depression tapered in a direction from the conductive foil to the passivation film if formed under a part of the conductive foil that includes the connection with the external electrodes.
Abstract:
An electronic component includes a substrate; a functional part that is formed beneath at least one of a front face and a bottom face of the substrate and that performs a predetermined function; a plurality of terminals that is formed on the front face or the bottom face of the substrate and that is connected to the functional part; a plurality of outer electrodes formed on the front face and the bottom face of the substrate; and interconnection lines, formed on the front face and the bottom face of the substrate, for connecting the terminals on the front face or the bottom face of the substrate to the outer electrodes.
Abstract:
A semiconductor chip is adhered to a substrate by using an adhesive, and a sealant is provided around the semiconductor chip, on a surface of the substrate on which the semiconductor chip is mounted. The adhesive is provided to reach a side surface of the semiconductor chip. The sealant is provided in a manner to expose an upper surface of the semiconductor chip and a part of the adhesive.
Abstract:
A connecting member is formed by an upper plate portion and a side plate portion. One end of the upper plate portion is fixed to a fixed platen of an injection molding machine, and a lower end of the side plate portion is fixed to a base frame to which the fixed platen is fixed. This connecting member prevents the fixed platen from being tilted when a nozzle touch force is applied from an injection apparatus.
Abstract:
A semiconductor device including a substrate (10). An interconnect pattern (12) is formed over the substrate (10), and the substrate (10) has a first portion (14) and a second portion (16) to be superposed on the first portion (14). The first portion (14) has edges (22), (24), (26) and (28) as positioning references. The second portion (16) has a shape to be superposed over the first portion (14) except the edges (22), (24), (26) and (28).
Abstract:
A nozzle touch mechanism which does not allow an injection unit to move back by the force of inertia at the time of acceleration of injection and prevents leakage of the molten resin. A damper is arranged between the injection unit and a stationary platen secured to a base, so as to generate a strong braking force only at the time of high acceleration of the injection unit. A ball screw is rotated by driving an electric motor to move forward a nut member screwed onto the ball screw, whereby the injection unit is moved via a spring. When the injection unit is stopped by contacting a nozzle to a metal mold, the spring is contracted. When the amount of contraction of the spring reaches a predetermined value, the motor is stopped and locked such that the nozzle touch force corresponding to the amount of contraction of the spring is generated. Even though the injection unit undergoes the force working to move back the unit due to the inertia force at the time of acceleration of the injection, the injection unit is not moved back because the damper substantially prevents the movement back of the unit and the leakage of molten resin.
Abstract:
A system for controlling nozzle touch force, which is capable of maintaining the touch force relying upon a simple constitution. An electric motor moves the injection unit forward via a spring to bring a nozzle into contact with a metal mold. Further, the spring is compressed to impart a preset nozzle touch force. In the injection/pressure-maintaining step, the screw is driven, and a position/speed detector provided on a servo motor for injecting the resin detects the injection speed at regular intervals. A force produced by the force of inertia of the moving portions such as the injection screw and the pusher plate that move due to the injection operation, is found from the acceleration that is found from the injection speed. The amount of compression of the spring is controlled by varying the rotational position of the motor by an amount corresponding to the force that is found to maintain the nozzle touch force constant. Since the nozzle touch force is maintained constant, no resin leaks and an excess of nozzle touch force is not produced, either.
Abstract:
An integrated type semiconductor device that is capable of reducing cost or improving the reliability of connecting semiconductor chips together or chips to a circuit board. One embodiment of such an integrated type semiconductor device comprises a first semiconductor device (10) having a semiconductor chip (12) with electrodes (16), a stress-relieving layer (14) prepared on the semiconductor chip (12), a wire (18) formed across the electrodes (16) and the stress-relieving layer (14), and solder balls (19) formed on the wire (18) over the stress-relieving layer (14); and a bare chip (20) as a second semiconductor device to be electrically connected to the first semiconductor device (10).
Abstract:
The semiconductor device comprises an insulating film in which penetrating holes are formed, a semiconductor chip having electrodes, a wiring pattern adhered by an adhesive over a region including penetrating holes on one side of the insulating film and electrically connected to the electrodes of the semiconductor chip, and external electrodes provided on the wiring pattern through the penetrating holes and projecting from the surface opposite to the surface of the substrate on which the wiring pattern is formed. Part of the adhesive is drawn in to be interposed between the penetrating holes and external electrodes.
Abstract:
There is provided a semiconductor device comprising: a first plating layer formed on one surface of an interconnect pattern; a second plating layer formed within through holes in the interconnect pattern; a semiconductor chip electrically connected to the first plating layer; an anisotropic conductive material provided on the first plating layer; and a conductive material provided on the second plating layer, wherein the first plating layer has appropriate adhesion properties with the anisotropic conductive material, and the second plating layer has appropriate adhesion properties with the conductive material.