Multi-layered semiconductor structure

Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask

Reexamination Certificate

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C430S022000, C430S296000, C430S942000, C257S797000, C438S011000, C438S401000, C438S975000

Reexamination Certificate

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06977128

ABSTRACT:
A multi-layered semiconductor structure having an alignment feature for aligning a lithography mask and that may be used in connection with a SCALPEL tool. The present invention is particularly well-suited for sub-micron CMOS technology devices and circuits, but is not limited thereto. The present invention advantageously permits use of an electron beam source for both alignment and exposure of a lithography mask on a semiconductor wafer. The present invention also advantageously enables the formation of an alignment feature early (i.e., zero-level) in the semiconductor device fabrication process.

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