Kabushiki Kaisha Shinkawa

Shinkawa Ltd.

Hisashi Ueda

Tadayuki Ueda

Nobuyuki Aoyagi

Noboru Fujino

Junichi Abe

Yutaka Kondo

A method for calibrating a wire clamp device includes: preparing a wire clamp device provided with a pair of arm parts having tips for clamping a wire, the arms extending from the tips toward base ends, and a drive part provided with a piezoelectric element for drive, connected to the base ends of the pair of arm parts and opening/closing the tips of the pair of arm parts; a step of detecting, by electrical continuity between the tips, a timing at which the pair of arm parts enters a closed state when the piezoelectric element for drive is driven, and acquiring a reference voltage; and a step of calibrating, on the basis of the reference voltage, an application voltage to be applied to the piezoelectric element for drive. Thus, it is possible to perform accurate and stable wire bonding.

Method for calibrating wire clamp device

The present invention comprises: a spool (); a clamper (); a torch electrode (); a high-voltage power source circuit (); a non-bonding detection circuit (); a first changeover switch () switching a connection between the spool () and the high-voltage power source circuit () or the non-bonding detection circuit (); and a relay () turning on/off a connection between the clamper () and a spool side of the first changeover switch (), and comprises a control part () that sets the first changeover switch () to the high-voltage power source circuit side and turns off the relay () to generate electric discharge, and that sets the first changeover switch () to the non-bonding detection circuit side and turns on the relay () to perform non-bonding detection. Due to this configuration, electric corrosion of a wire clamper can be suppressed and non-bonding detection can be carried out with a simple configuration.

Wire bonding apparatus, circuit for wire bonding apparatus, and method for manufacturing semiconductor device

A device for storing plate-from parts such as lead frames including an elevator which carries and positions a storing magazine that receives the lead frames and a loading conveyor which conveys the lead frames to the storing magazine. The loading conveyor is computer-operated so as to shift via a feed screw in a horizontal and perpendicular direction relative to a direction in which the lead frames are transferred. The line position of the loading conveyor is automatically adjusted to match the line position of a transporting conveyor which supplies the lead frames to the loading conveyor and also to match the line position of the storing magazine.

Device for storing thin plate-form parts

A pusher device for pushing plate-form articles such as lead frames including a pusher for feeding out a lead frame, a pusher supporting plate rotatably holding the pusher and having a stopper section that regulates the rotation of the pusher so as to bring a pushing section of the pusher to a lowest position, a coil spring which urges the pusher toward the stopper section of the pusher supporting plate, a cylinder which reciprocates the pusher supporting plate, and a spring-up operation plate which, cooperative with the stopper section of the pusher supporting plate, defines the rotational movement of the pusher. Thus, the pusher is withdrawn from an area into which the lead frame is transferred and then takes a posture to feed the lead frame to, for example, a bonding machine.

Pusher device for plate-form articles

A conveyor apparatus for a plate form article such as a lead frame including a main conveyor line and a working conveyor line for conveying the lead frame in a direction parallel to the length wise direction of the lead frame, and a sub-conveyor which transfers the lead frame to and from the main and working conveyor lines in a direction perpendicular to the conveyor lines, and the sub-conveyor being made of work-holders for holding the lead frame in such a manner that two ends of the length-wise direction of the lead frame are positioned perpendicular to the conveying direction of the sub-conveyor, a vertical driving cylinder for raising and lowering the work-holders, and a conveying mechanism, which includes a motor 61, timing belts, etc., for moving the work-holders in a direction perpendicular to the conveyor lines. Thus, a smooth conveyance of the lead frame by the sub conveyor is insured even though the lead frame has projected portions that are called 'islands.'

Apparatus for conveying plate-form articles

A conveyor apparatus for a plate form article such as a lead frame including: a main conveyor line and a working conveyor line, which convey the lead frame in a direction parallel to the length-wise direction of the lead frame; a sub-conveyor which transfers the lead frame between the main and working conveyor lines in a direction perpendicular to such conveyor lines, the sub-conveyor being made of work-holders for holding the lead frame in such a manner that two ends of the length-wise direction of the lead frame are positioned perpendicular to the conveying direction of the sub-conveyor and supported by the work-holders; a vertical driving cylinder for raising and lowering the work-holders; belt conveyor systems of two different linkages which are connected to the work-holders; and a motor which drives the timing belt systems. Both timing belt system are linked to and driven by the motor, but one of them is driven through the braking and clutch mechanisms. Thus, by way of switching on and off the brake and clutch mechanisms, not only the conveyance of the lead frame but also the width adjustment between the work-holders are accomplished by a single power source which is the motor; in addition, a smooth conveyance of the lead frame by the sub-conveyor is insured.

Growing community of inventors

Tokyo, Japan

Hisashi Ueda