Patent ID: 7755753

Claim:
A substrate for defect detection sensitivity calibration, used for calibrating detection sensitivity of a defect detection apparatus detecting a defective portion occurring in a device, used for detecting defection with the defect detection apparatus, the substrate comprising: a defect formation portion; and a plurality of programmed defective portions formed on a surface of said defect formation portion, wherein said programmed defective portions are formed to have arbitrary sizes, a pattern portion provided on the surface of said defect formation portion and having a predetermined pattern, wherein said programmed defective portions that form dents by protruding outwards are located on denting portions between side by side pattern portions; wherein particles are part of a material of the pattern that adheres on a surface of the defect formation portion when the pattern is formed by processing; and wherein each of said programmed defective portions is a protruding structure that is formed by processing the surface of said defect formation portion, with an arbitrary plural number of the particles adhering on the surface of said defect formation portion functioning as a mask, and is formed by integrating the defect formation portion with same material of the defect formation portion.