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Radiation response of CMOS/SOI devices formed by wafer bond and etchback

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6 Author(s)

The fabrication process and defect characteristics of thin-film silicon-on-insulator (SOI) devices prepared by the bond and etchback process (BESOI) utilizing diamond matching and noncontact polishing were studied. MOS devices were fabricated and were characterized electrically before and after radiation exposure. Analysis by TEM shows that a defect-free film is produced by the BESOI process. CMOS devices show high mobility and low leakage current (less than 1.0 pA/μm). The radiation responses of the top and edge oxide are comparable to those of bulk devices. Positive charge trapping and interface-trap generation were -0.8 and 0.8 V, respectively, at a dose of 10 Mrad (SiO2)

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Nuclear Science, IEEE Transactions on  (Volume:35 ,  Issue: 6 )