Dicing method and apparatus for cutting panels or wafers into rectangular shaped die

A device for producing a plurality of rectangular shaped die from a workpiece, the device comprising:

• a spindle;
• and
• a plurality of blades mounted on the spindle at a predetermined interval relative to one another, each odd numbered blade having a first diameter and each even numbered blade having a second diameter less than the first diameter,
• wherein predetermined ones of the plurality of blades cut the workpiece along a first direction and each of the plurality of blades cut the workpiece along a second direction to form the plurality of rectangular die.

A device for producing a plurality of rectangular shaped die from a workpiece, the device comprising:

• a spindle;
• and
• a plurality of blades mounted on the spindle at a predetermined interval relative to one another, each even numbered blade of the plurality of blades having a first diameter and each odd numbered blade of the plurality of blades having a second diameter less than the first diameter,
• wherein the even numbered blades of the plurality of blades cut the workpiece along a first direction and each of the plurality of blades cut the workpiece along a second direction to form the plurality of rectangular die.

A method for producing a plurality of rectangular shaped die from a workpiece, the method comprising the steps of:

• mounting a first blade having a first diameter and a second blade having a second diameter smaller that the first diameter on a spindle, each blade mounted at a predetermined interval relative to one another;
• moving the workpiece relative to the first and second blades;
• cutting the workpiece along a first direction with the first blade;
• and
• cutting the workpiece along a second direction with both the first and second blades simultaneously, the second direction substantially orthogonal to the first direction.

A method for producing a plurality of rectangular shaped die from a workpiece, the method comprising the steps of:

• mounting a plurality of blades on a spindle at a predetermined interval relative to one another, each blade in an odd position having a first diameter and each blade in an even position having a second diameter smaller that the first diameter on a spindle;
• cutting the workpiece along a first direction with the blades mounted in the odd positions on the spindle;
• and
• cutting the workpiece along a second direction with the plurality of blades simultaneously, the second direction substantially orthogonal to the first direction.

A method for producing a plurality of rectangular shaped die from a workpiece, the method comprising the steps of:

• mounting a plurality of blades on a spindle at a predetermined interval relative to one another, each blade in an odd position having a first diameter and each blade in an even position having a second diameter smaller that the first diameter on a spindle;
• cutting the workpiece along a first direction with the blades mounted in the even positions on the spindle;
• and
• cutting the workpiece along a second direction simultaneously with the plurality of blades, the second direction substantially orthogonal to the first direction.

A device for producing a plurality of rectangular shaped die from a BGA panel, the device comprising:

• a spindle;
• and
• a first blade having a first diameter and a second blade having a second diameter smaller that the first diameter, each blade mounted on the spindle at a predetermined interval relative to one another,
• wherein the first blade and second blades cut the panel based on a direction of movement of the panel relative to the first and second blades.