AT Optical Instruments Co., Ltd.
Precision Optics for Semiconductor Innovation
AT Optics provides advanced optical components and coatings for semiconductor manufacturing, inspection, and metrology. With cutting-edge thin-film technology and integrated opto-mechanical design, we help OEMs achieve tighter tolerances, higher damage thresholds, and superior spectral performance across UV, visible, and IR wavelengths—supporting next-generation innovation in microelectronics and nanofabrication.
Photolithography
Inspection & Metrology
Laser Processing
Thin-Film Deposition & Etching
