Robust PH sensing characteristics of RINOS structure with SM 2O3 sensing membrane and rapid thermal annealing for biosensor application

Jer Chyi Wang*, Chao Sung Lai, Chyuan Haur Kao, Hui Yu Shih, Tseng Fu Lu

*此作品的通信作者

研究成果: 圖書/報告稿件的類型會議稿件同行評審

摘要

This investigation proposes a novel Sm2O3/Si 3N4/SiO2/Si RINOS device with an ONO (oxide-nitride-oxide) structure and Sm2O3 as the sensing membrane. To improve the sensing properties, the Sm2O3 was treated by RTA. Post deposition annealing (PDA) at 700°C increased the pH sensitivity of a 4nm-thick Sm2O3 sensing membrane from 41.69 to 55.44 mV/pH and improved the hysteresis and drift characteristics. Stress at - 17V for 10 s, further enhanced the pH sensitivity to 70.13 mV/pH, which was higher than the Nernstian value. Moreover, this device can be operated by applying program/erase (P/E) stress to increase/reduce the pH sensitivity stable for over 100 P/E cyclings. The novel RINOS structure with Sm 2O3 sensing membrane and RTAis a promising candidate for sensing ultra small signals in the human body micro-fluid applications.

原文英語
主出版物標題ISOB 2011 - Proceedings of the 1st International Symposium on Bioengineering
頁面27-33
頁數7
DOIs
出版狀態已出版 - 2011
事件1st International Symposium on Bioengineering, ISOB 2011 - Singapore, 新加坡
持續時間: 19 01 201119 01 2011

出版系列

名字ISOB 2011 - Proceedings of the 1st International Symposium ISOB 2011 - Proceedings of the 1st International Symposium on Bioengineering

Conference

Conference1st International Symposium on Bioengineering, ISOB 2011
國家/地區新加坡
城市Singapore
期間19/01/1119/01/11

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