Diffusion barrier for oscillating quartz, measuring assembly for measuring deposition rate and method thereof

摘要

A detection element for a measurement assembly adapted to measure a deposition rate of an evaporated material on a substrate. The detection element comprising: an oscillation crystal for detecting the deposition rate; and a barrier layer comprising a barrier material covering at least a portion of the oscillation crystal configured to prevent the evaporated material from diffusing into the oscillation crystal.