作者: Masamichi Shindo , Toshihiro Kato , Yoshihito Fukasawa
DOI:
关键词: Materials science 、 Beam (structure) 、 Optics 、 Reflection (physics) 、 Semiconductor device 、 Laser beams 、 Optoelectronics
摘要: An apparatus and a method for inspecting semiconductor devices, where focused laser beam scans the device, reflected thereof indicating height information of reflection positions on device is detected producing signals. The signals are compared with predetermined acceptance levels distance.