Semiconductor device and method of manufacture thereof

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged outside said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged outside a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• a first supporting lead which is arranged outside a third latus of said first semiconductor chip intersecting with said first latus thereof and outside a third latus of said second semiconductor chip intersecting with said first latus thereof;
• and
• a second supporting lead which is arranged outside a fourth latus of said first semiconductor chip opposing to the third latus thereof and outside a fourth latus of said second semiconductor chip opposing to the third latus thereof;
• wherein said first semiconductor chip and said second semiconductor chip are bonded and fixed to each other in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that the second latus of said first semiconductor chip and said first latus of said second semiconductor chip may confront a side of said second leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that said third latus of said first semiconductor chip may lie outside said third latus of said second semiconductor chip and that the fourth latus of said second semiconductor chip may lie outside the fourth latus of said first semiconductor chip;
• said first supporting lead is bonded and fixed onto the rear surface of said first semiconductor chip outside said third latus of said second semiconductor chip;
• and
• said second supporting lead is bonded and fixed onto the rear surface of said second semiconductor chip outside said fourth latus of said first semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged outside said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged outside a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• a first supporting lead which is arranged outside a third latus of said first semiconductor chip intersecting with said first latus thereof and outside a third latus of said second semiconductor chip intersecting with said first latus thereof;
• and
• a second supporting lead which is arranged outside a fourth latus of said first semiconductor chip opposing to the third latus thereof and outside a fourth latus of said second semiconductor chip opposing to the third latus thereof;
• wherein said first semiconductor chip and said second semiconductor chip are bonded and fixed to each other in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that the second latus of said first semiconductor chip and said first latus of said second semiconductor chip may confront a side of said second leads;
• said first supporting lead is bonded and fixed onto the front surface of said first semiconductor chip and on a side of said third latus thereof;
• and
• said second supporting lead is bonded and fixed onto the front surface of said second semiconductor chip and on a side of the fourth latus thereof.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• and
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that the second latus of said first semiconductor chip may lie outside said first latus of said second semiconductor chip and that the second latus of said second semiconductor chip may lie outside said first latus of said first semiconductor chip;
• each of said plurality of first leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the rear surface of said second semiconductor chip outside said first latus of said first semiconductor chip;
• and
• each of said plurality of second leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the rear surface of said first semiconductor chip outside said first latus of said second semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• and
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that said first latus of said first semiconductor chip may lie outside the second latus of said second semiconductor chip and that said first latus of said second semiconductor chip may lie outside the second latus of said first semiconductor chip;
• each of said plurality of first leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the rear surface of said first semiconductor chip outside said second latus of said second semiconductor chip;
• and
• each of said plurality of second leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the rear surface of said second semiconductor chip outside said second latus of said first semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• and
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that the second latus of said first semiconductor chip may lie outside said first latus of said second semiconductor chip and that the second latus of said second semiconductor chip may lie outside said first latus of said first semiconductor chip;
• each of said plurality of first leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the rear surface of said second semiconductor chip outside said first latus of said first semiconductor chip;
• and
• each of said plurality of second leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the front surface of said first semiconductor chip and on the side of said second latus of said first semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• and
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surface of said first semiconductor chip and the front surface of said second semiconductor chip are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of the respective semiconductor chips are staggered relatively to each other so that said first latus of said first semiconductor chip may lie outside the second latus of said second semiconductor chip and that said first latus of said second semiconductor chip may lie outside the second latus of said second semiconductor chip;
• each of said plurality of first leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto said rear surface of said first semiconductor chip outside said second latus of said first semiconductor chip;
• and
• each of said plurality of second leads has a distal end part of its inner portion, which lies within said resin body, bonded and fixed onto the rear surface of said second semiconductor chip on a side of said first latus of said second semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• a first supporting lead which supports said first semiconductor chip;
• and
• a second supporting lead which supports said second semiconductor chip;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that the second latus of said first semiconductor chip may lie outside said first latus of said second semiconductor chip and that the second latus of said second semiconductor chip may lie outside said first latus of said first semiconductor chip;
• said first supporting lead is bonded and fixed onto the rear surface of said first semiconductor chip and outside said first latus of said second semiconductor chip;
• and
• said second supporting lead is bonded and fixed onto the rear surface of said second semiconductor chip outside said first latus of said first semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• a first supporting lead which supports said first semiconductor chip;
• and
• a second supporting lead which supports said second semiconductor chip;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that said first latus of said first semiconductor chip may lie outside the second latus of said second semiconductor chip and that said first latus of said second semiconductor chip may lie outside said second latus of said first semiconductor chip;
• said first supporting lead is bonded and fixed onto the front surface of said first semiconductor chip;
• and
• said second supporting lead is bonded and fixed onto the front surface of said second semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• and
• a tab which has the rear surface of said first semiconductor chip bonded and fixed onto a front surface of front and rear surfaces thereof, and which has the rear surface of said second semiconductor chip bonded and fixed onto the rear surface of said front and rear surfaces thereof;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that said first latus of said first semiconductor chip may lie outside the second latus of said second semiconductor chip, as well as a side surface of said tab, and that said first latus of said second semiconductor chip may lie outside said second latus of said first semiconductor chip, as well as another side surface of said tab.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of conductive wire;
• and
• a tab which has the rear surface of said first semiconductor chip bonded and fixed onto a front surface of front and rear surfaces thereof, and which has the rear surface of said second semiconductor chip bonded and fixed onto the rear surface of said front and rear surfaces thereof;
• wherein said first semiconductor chip and said second semiconductor chip are stacked in a state where the rear surfaces of the respective semiconductor chips are faced to each other so that said first latus of said first semiconductor chip and a second latus of said second semiconductor chip opposing to said first latus thereof may confront a side of said first leads, and where positions of said respective semiconductor chips are staggered relatively to each other so that a side surface of said tab on the same side as said first latus of said first semiconductor chip may lie outside inner side ends of said electrodes of said first semiconductor chip and that a side surface of said tab on the same side as said first latus of said second semiconductor chip may lie outside inner side ends of said electrodes of said second semiconductor chip.

A semiconductor device, comprising:

• a resin body;
• a first semiconductor chip and a second semiconductor chip which lie within said resin body, each of which is formed in a square shape when viewed in plan, and each of which is formed with a plurality of electrodes on a side of a first latus of a front surface of front and rear surfaces thereof and along the first latus;
• a plurality of first leads which extend inside and outside said resin body, which are arranged on the side of said first latus of said first semiconductor chip, and which are electrically connected to the corresponding electrodes of said first semiconductor chip through pieces of first conductive wire;
• a plurality of second leads which extend inside and outside said resin body, which are arranged on a side of a second latus of said first semiconductor chip opposing to said first latus thereof, and which are electrically connected to the corresponding electrodes of said second semiconductor chip through pieces of second conductive wire;
• and
• a tab which has the rear surface of said first semiconductor chip bonded and fixed onto a front surface of front and rear surfaces thereof, and which has the rear surface of said second semiconductor chip bonded and fixed onto the rear surface of said front and rear surfaces thereof;
• wherein wire connection surfaces of said first leads lie nearer to a side of said second semiconductor chip with respect to the front surface of said first semiconductor chip;
• wire connection surfaces of said second leads lie nearer to a side of said first semiconductor chip with respect to the front surface of said second semiconductor chip;
• each of the first wire pieces is connected by reverse bonding in which it is bonded onto the wire connection surface of the corresponding first lead as first bonding and is subsequently bonded to the corresponding electrode of said first semiconductor chip as second bonding;
• and
• each of the second wire pieces is connected by reverse bonding in which it is bonded onto the wire connection surface of the corresponding second lead as first bonding and is subsequently bonded to the corresponding electrode of said second semiconductor chip as second bonding.