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

Claim 11:
12. The method for measuring a film thickness of a semiconductor device according to claim 5, wherein the adjusting a distribution parameter of a substrate in the main storage region of the reference semiconductor device based on the second measured spectrogram by using the distribution parameter and thickness parameter of the target film in the main storage region of the reference semiconductor device as fixed values, obtaining an adjusted second measured spectrogram, and comparing the adjusted second measured spectrogram with a theoretical spectrogram of the main storage region of the reference semiconductor device comprises:
obtaining distribution parameters of the substrate in different zones of the main storage region of the reference semiconductor device;
integrating the distribution parameters of the substrate in the zones and obtaining a reference distribution parameter; and
adjusting the reference distribution parameter based on the second measured spectrogram by using the distribution parameter and thickness parameter of the target film in the main storage region of the reference semiconductor device as fixed values, obtaining the adjusted second measured spectrogram, and comparing the adjusted second measured spectrogram with the theoretical spectrogram of the main storage region of the reference semiconductor device.