Splicing technique for fixed abrasives used in chemical mechanical planarization
First Claim
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1. An abrasive article comprising:
- a support pad having a first major surface, a second major surface, a first edge, a second edge and a channel, wherein the channel is formed within the first major surface and extends from the first edge to the second edge;
a first abrasive element positionable over a portion of the support pad;
a second abrasive element positionable over a portion of the support pad; and
a fixation mechanism positioned within the channel for securing an edge of the first abrasive element and an edge of the second abrasive element to the support pad.
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Abstract
An abrasive article includes a support pad, a first abrasive element, a second abrasive element and a fixation mechanism. The support pad has a first major surface, a second major surface, a first edge, a second edge and a channel. The channel is formed within the first major surface and extends from the first edge to the second edge. The first and second abrasive elements are each positionable over a portion of the support pad. The fixation mechanism is positioned within the channel ad secures an edge of the first abrasive element and an edge of the second abrasive element to the support pad.
35 Citations
20 Claims
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1. An abrasive article comprising:
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a support pad having a first major surface, a second major surface, a first edge, a second edge and a channel, wherein the channel is formed within the first major surface and extends from the first edge to the second edge; a first abrasive element positionable over a portion of the support pad; a second abrasive element positionable over a portion of the support pad; and a fixation mechanism positioned within the channel for securing an edge of the first abrasive element and an edge of the second abrasive element to the support pad. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A fixed abrasive article comprising:
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a pad having a first major surface and a second major surface; a first abrasive element positionable over a portion of the first major surface; a second abrasive element positionable over a portion of the first major surface; and a fixation mechanism located below a plane defined by the first major surface, wherein the fixation mechanism attaches an edge of the first abrasive element and an edge of the second abrasive element to the pad. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method of polishing a surface of a workpiece comprising:
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providing a support pad having a first major surface, a first edge, a second edge, and a channel located within the first major surface extending from the first edge to the second edge; covering a portion of the first major surface of the support pad with a first abrasive element; positioning an edge of the first abrasive element within the channel of the support pad; covering a portion of the first major surface of the support pad with a second abrasive element; positioning an edge of the second abrasive element within the channel of the support pad; maintaining the edges of the first and second abrasive elements within the channel; contacting the first and second abrasive elements with the surface of the workpiece; and moving the workpiece and the fixed abrasive elements with respect to each other. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification