HETEROGENEOUS INTEGRATION DETECTING METHOD AND HETEROGENEOUS INTEGRATION DETECTING APPARATUS

• Main Authors: Lo, Chieh-Yi, Lo, Chun-Wei, Wei, Hsiang-Chun, Ku, Yi-Sha, Kuo, Chung-Lun, Liu, Chih-Hsiang
• Format: Patent
• Language: English
• Published: 18.05.2023
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

A heterogeneous integration detecting method and a heterogeneous integration detecting apparatus are provided. The heterogeneous integration detecting method includes the following. Under the condition of maintaining the same relative distance between an interference objective lens and a sample, the relative posture of the interference objective lens and the sample is continuously adjusted according to the change of an image of the sample in the field of view of the interference objective lens until a first optical axis of the interference objective lens is determined to be substantially perpendicular to the surface of the sample according to the image. The interference objective lens is replaced with an imaging objective lens and the geometric profile of at least one via of the sample is detected. A second optical axis of the imaging objective lens after replacement overlaps with the first optical axis of the interference objective lens before replacement.