Semiconductor wafer edge polishing system and method

Abrading – Precision device or process - or with condition responsive... – Computer controlled

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451 8, 451 43, 1566541, 414222, B24B 4900

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active

055955223

ABSTRACT:
An edge polishing system (20, 320) and method for edge polishing semiconductor wafers is disclosed. The system (20, 320) includes a loader (22, 326), a polisher (24, 328), an unloader (26, 330), and a controller (28, 335). The method includes the steps of loading wafers (28), and spacers (30) into a loader (22) to form a stack (36), moving the stack (36) into a polisher (24) and causing polisher (24) to polish the stack (36), then moving the stack (36) to an unloader (26), which semiautomatically removes the wafers (28) and spacers (30). The system (20) may include a controller (28) for entering the appropriate commands.

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Daitron, Inc., Engineering and Electronic Systems, "Wafer Edge Polisher Model WEP-400 Specifications" Apr. 1993.
FAM Speedfam Corporation, Electronics Equipment Group, A Subsidiary of FAMTEC International, Inc.

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