Patent ID: 11965268
Assignee: IVWORKS CO., LTD.
Field: nan (nan)
Classification: CPC nan | IPC C

Claim 3:
4. Wafer according to claim 1 in which FWHME designates the width at mid-height of the x-ray diffraction peak of the line (002) around the angle ω measured on the E face and where FWHME is less than 130 ArcSec and the quality gradient defined by the ratio (FWHM′N-FWHM′E)/thickness of said wafer, where FWHM′N designates the width at mid-height of the X-ray diffraction peak of the line (201) around the angle ω measured on the N face (Nitrogen) and FWHM′E is that measured on E face, is comprised in absolute value between 0.005 and 5 ArcSec/micrometre.