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Glass Wafer and Substrate

Optical glass available 

According applications, we can provide glass wit specific CTE( coefficient of thermal expansion), transmission and thickness such as non-alkaline glass、soda lime glass、borofloat BF33、B270、D263、and Boroalumina glass etc.. 

CNC shaping: 12" (300mm) wafer, include notch and edge grinding
CNC shaping: 12" (300mm) wafer, include notch and edge grinding
surface polishing
surface polishing
Grinding to super flat for wafer
Grinding to super flat for wafer
Laser mark for glass and silicon
Laser mark for glass and silicon

flatness measurement

Precision 0.3um using inter-ferometer of monochromatic light.

Laser Interferometer

TTV (total thickness variation or GTIR) with precision 1um, also report warpage and bow.

Visual Inspection

ability to check defect >1um.