XRF Fluorescence Spectrum Measuring Machine 

XRF uses high-energy X-rays or gamma-ray photon samples to excite the electrons in the inner orbital of the sample constituent atoms into photoelectrons with energy, so that a hole is created in the inner orbital, and the outer electrons will fill the vacant electrons in the inner layer. position, emits characteristic X-rays due to the energy difference between the energy levels, called X-ray fluorescent sticks (X-ray Fluorescence，XRF)。For advanced memory (DRAM, PCRAM, 3D-NAND, MRAM), Logic, power devices and packaging.Composition and thickness measurement. On metrology pads or directly on-device (non-destructive manner). Multi-stack measurement capability.