Methods, wires, and apparatus for slicing hard materials

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United States of America Patent

PATENT NO 8820309
SERIAL NO

13622572

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Importance

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Abstract

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Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF SOUTH CAROLINAOSBORNE ADMINISTRATION BUILDING SUITE 109 COLUMBIA SC 29208

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Agafonov, Igor Columbia, US 19 348
Kennedy, Robert Columbia, US 34 502
Sudarshan, Tangali Columbia, US 4 71

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