Patent ID: 11867497
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The method for measuring a film thickness of a semiconductor device according to claim 7, wherein in the adjusting a distribution parameter of a target film in the measurement region of the reference semiconductor device based on the third measured spectrogram by using a distribution parameter and a thickness parameter of the substrate and a thickness parameter of the target film in the measurement region of the reference semiconductor device as fixed values, obtaining an adjusted third measured spectrogram, and comparing the adjusted third measured spectrogram with a theoretical spectrogram of the measurement region of the reference semiconductor device, a method for obtaining the thickness parameter of the substrate and the thickness parameter of the target film in the measurement region of the reference semiconductor device comprises:
slicing the measurement region of the reference semiconductor device, to expose a side surface of the measurement region of the reference semiconductor device; and
measuring thicknesses of the substrate and the target film from the side surface of the measurement region of the reference semiconductor device as the thickness parameters of the substrate and the target film.