光线能够穿透的任何材料基本上都可以测量。光线无法穿透的样品很难测量,例如 100 nm 或更厚的金属薄膜。(此前已成功测量厚度小于 50 nm 的样品)容易散射光线的样品也难以测量。请联系滨松光子学株式会社的代表,了解更多关于雾度值和其他规格的信息。
它可用于在线/离线用途,主要检查半导体、FPD 和薄膜制造过程(薄膜厚度控制)。
我们可以对您准备的样品进行测量演示。我们准备了 Optical Gauge 系列演示套件。请联系滨松光子学株式会社的代表,了解更多信息。
我们对厚度已经过第三方机构确认的样品进行测量,并根据该参考值判定测量结果以确认厚度。遗憾的是,对于我们自己无法控制和确认的样品的薄膜厚度,我们无法保证其测量值。
绝对精度取决于材料的光学常数(折射率和吸收系数)。如果该光学常数正确,则绝对厚度精度会比较高。VLSI 标准(第三方机构)的测量保证中显示的保证范围即为我们的测量精度。在 400 nm 石英玻璃样品上,再现性为 0.02 nm 标准偏差。
它可以应对几毫米的波动。请参见 本页上的离焦依赖性,了解更多信息。
我们很少收到关于硬件维修方面的问题,但我们会收到很多关于分析方面(包括软件)的问题,特别是关于配方设置的问题。Optical Gauge 系列具有配方设置功能,即使客户也能轻松操作。
对于正常测量,样品和传感器之间的距离为 10 mm 或更小,但也可提供工作距离为 35 mm 的光学元件。
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