膜厚标样

SiO2@Si膜厚标样，CNAS认证，4寸，SiO2厚度10nm，100nm

TS-SiO2-4-7200-NIST，4寸，SiO2厚度7200A

TS-SiO2-6-Multi-NIST，6寸，NIST-traceable SiO2-on-Si thickness standard: 125A, 250A, 500A, 1000A, 5000A, and 10000A (+/-10%), 6" wafer