摘要:
To actualize a reduction in the on-resistance of a small surface mounted package having a power MOSFET sealed therein. A silicon chip is mounted on a die pad portion integrated with leads configuring a drain lead. The silicon chip has, on the main surface thereof, a source pad and a gate pad. The backside of the silicon chip configures a drain of a power MOSFET and bonded to the upper surface of a die pad portion via an Ag paste. A lead configuring a source lead is electrically coupled to the source pad via an Al ribbon, while a lead configuring a gate lead is electrically coupled to the gate pad via an Au wire.
摘要:
To actualize a reduction in the on-resistance of a small surface mounted package having a power MOSFET sealed therein. A silicon chip is mounted on a die pad portion integrated with leads configuring a drain lead. The silicon chip has, on the main surface thereof, a source pad and a gate pad. The backside of the silicon chip configures a drain of a power MOSFET and bonded to the upper surface of a die pad portion via an Ag paste. A lead configuring a source lead is electrically coupled to the source pad via an Al ribbon, while a lead configuring a gate lead is electrically coupled to the gate pad via an Au wire.
摘要:
To actualize a reduction in the on-resistance of a small surface mounted package having a power MOSFET sealed therein. A silicon chip is mounted on a die pad portion integrated with leads configuring a drain lead. The silicon chip has, on the main surface thereof, a source pad and a gate pad. The backside of the silicon chip configures a drain of a power MOSFET and bonded to the upper surface of a die pad portion via an Ag paste. A lead configuring a source lead is electrically coupled to the source pad via an Al ribbon, while a lead configuring a gate lead is electrically coupled to the gate pad via an Au wire.
摘要:
A QFP adapted to lowering the heat resistance and increasing the number of pins, and a method of producing the same. The QFP includes a heat-radiating metal plate having bumpers formed at the four corners thereof as a unitary structure, a semiconductor chip mounted on the heat-radiating metal plate, leads provided on the heat-radiating metal plate and surrounding the peripheries of the semiconductor chip, bonding wires for connecting the leads to the semiconductor chip, and a sealing resin member for sealing part of the semiconductor chip, inner leads of the leads, bonding wires and part of the heat-radiating metal plate. The tips of the bumpers integrally formed with the heat-radiating metal plate are positioned outside the tips of the outer leads that are protruding from the sealing resin member. In the QFP producing method, the heat-radiating metal plate having the bumpers and the lead frame having the leads are secured outside the sealing resin member.
摘要:
A QFP adapted to lowering the heat resistance and increasing the number of pins includes a heat-radiating metal plate having bumpers formed at the four corners thereof as a unitary structure, a semiconductor chip mounted on the heat-radiating metal plate, leads provided on the heat-radiating metal plate and surrounding the peripheries of the semiconductor chip, bonding wires for connecting the leads to the semiconductor chip, and a sealing resin member for sealing part of the semiconductor chip, inner leads of the leads, bonding wires and part of the heat-radiating metal plate. The tips of the bumpers integrally formed with the heat-radiating metal plate are positioned outside the tips of the outer leads that are protruding from the sealing resin member. In the QFP producing method, the heat-radiating metal plate having the bumpers and the lead frame having the leads are secured outside the sealing resin member.
摘要:
A QFP adapted to lowering the heat resistance and increasing the number of pins, and a method of producing the same. The QFP includes a heat-radiating metal plate having bumpers formed at the four corners thereof as a unitary structure, a semiconductor chip mounted on the heat-radiating metal plate, leads provided on the heat-radiating metal plate and surrounding the peripheries of the semiconductor chip, bonding wires for connecting the leads to the semiconductor chip, and a sealing resin member for sealing part of the semiconductor chip, inner leads of the leads, bonding wires and part of the heat-radiating metal plate. The tips of the bumpers integrally formed with the heat-radiating metal plate are positioned outside the tips of the outer leads that are protruding from the sealing resin member. In the QFP producing method, the heat-radiating metal plate having the bumpers and the lead frame having the leads are secured outside the sealing resin member.
摘要:
A QFP adapted to lowering the heat resistance and increasing the number of pins, and a method of producing the same. The QFP includes a heat-radiating metal plate having bumpers formed at the four corners thereof as a unitary structure, a semiconductor chip mounted on the heat-radiating metal plate, leads provided on the heat-radiating metal plate and surrounding the peripheries of the semiconductor chip, bonding wires for connecting the leads to the semiconductor chip, and a sealing resin member for sealing part of the semiconductor chip, inner leads of the leads, bonding wires and part of the heat-radiating metal plate. The tips of the bumpers integrally formed with the heat-radiating metal plate are positioned outside the tips of the outer leads that are protruding from the sealing resin member. In the QFP producing method, the heat-radiating metal plate having the bumpers and the lead frame having the leads are secured outside the sealing resin member.
摘要:
A QFP adapted to lowering the heat resistance and increasing the number of pins, and a method of producing the same. The QFP includes a heat-radiating metal plate having bumpers formed at the four corners thereof as a unitary structure, a semiconductor chip mounted on the heat-radiating metal plate, leads provided on the heat-radiating metal plate and surrounding the peripheries of the semiconductor chip, bonding wires for connecting the leads to the semiconductor chip, and a sealing resin member for sealing part of the semiconductor chip, inner leads of the leads, bonding wires and part of the heat-radiating metal plate. The tips of the bumpers integrally formed with the heat-radiating metal plate are positioned outside the tips of the outer leads that are protruding from the sealing resin member. In the QFP producing method, the heat- radiating metal plate having the bumpers and the lead frame having the leads are secured outside the sealing resin member.
摘要:
Prevention of disconnection of a bonding wire resulting from adhesive interface delamination between a resin and a leadframe, and improvement of joint strength of the resin and the leadframe are achieved in a device manufactured by a low-cost and simple processing. A boss is provided on a source lead by a stamping processing, and a support pillar is provided in a concave portion on a rear side of the source lead in order to prevent ultrasonic damping upon joining the bonding wire onto the boss, so that an insufficiency of the joint strength between the bonding wire and the source lead is prevented. Also, a continuous bump is provided on the boss so as to surround a joint portion between the source lead and the bonding wire, so that disconnection of the bonding wire resulting from delamination between the resin and the source lead is prevented.