Please login first
Blue Light Total Dose Nonvolatile Sensor Using Al-SOHOS Capacitor Device
1  Department of Opto-Electronic System Engineering, Minghsin University of Science and Technology, Xinxing Rd, 1, Xinfeng 30401, Taiwan


The Al doped silicon–silicon oxide–hafnium oxide–silicon oxide–silicon capacitor device (hereafter Al-SOHOS) could be a candidate for blue light radiation total dose (hereafter TD) nonvolatile sensor. The UV radiation induces a significant increase in the threshold voltage VT of the Al-SOHOS capacitor, and the change in VT for Al-SOHOS capacitor also has a correlation to UV TD. The experimental results indicate that UV TD radiation-induced increase of VT in Al-SOHOS capacitor under gate positive bias stress (hereafter PVS) is significant. Moreover, the VT retention loss of the nonvolatile Al-SOHOS capacitor device after 10 years retention is good. The UV TD data can be permanently stored and accumulated in the non-volatile Al-SOHOS capacitor device. Furthermore, the UV TD data in the Al-SOHOS capacitor devices can be erased to original null state by opposite charges injection under gate negative bias stress (hereafter NVS). The Al-SOHOS capacitor device in this study has demonstrated the feasibility of non-volatile UV TD radiation sensing.

Keywords: Blue light; sensor; SOHOS; radiation; TD
Comments on this paper
kirsty hughes
Nice topic
Honestly speaking I did not hear about the UV TD radiation before reading your amazing article about this. Students always prefer to read samedayessay review before hiring their fantastic services. Scientists have done excellent thing to develop a new device to stop these radiation.