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UVISION 4

概述

The Applied UVision® 4 wafer Inspection system was introduced in 2010, enabling customers to detect yield-limiting defects in the critical patterning layers of 32nm and below logic and memory devices using DUV laser-based imaging technology. The UVision 4 system’s extendable architecture of high-power polarized deep ultra-violet laser, optimized scattered light collection, and advanced noise reduction capabilities, addresses the inspection challenges of 32nm and below with optical inspection capabilities beyond the resolution limits of conventional brightfield (BF) inspection. Innovative algorithms enable simultaneous detection of systematic mask induced defects (i.e., "haze" defects) and random defects at production worthy throughput made possible by an enhanced image processor. Wide dynamic range detection schemes eliminate the multiple region-specific scans previously required, enabling regions of a chip with differing contrasts to be imaged with optimal sensitivity in a single pass without compromising throughput.

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