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題 名 | 離子酸鹼感測器之模擬與研究=A Simulation and Study of the Isfet Sensor |
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作 者 | 周榮泉; 陳曉暉; | 書刊名 | 技術學刊 |
卷 期 | 12:2 1997.06[民86.06] |
頁 次 | 頁273-284 |
分類號 | 448.5 |
關鍵詞 | 離子感測場效電晶體; 電腦輔助設計; 等效閘極電壓; pH值; 醫工感測器; ISFET; Ion sensitive field effect transistor; CAD; Computer aided design; Equivalent gate voltage; PSPICE; pH value; Biosensor; |
語 文 | 中文(Chinese) |
中文摘要 | 離子感測場效電晶體ISFET(Ion Sensitive Field Effect Transistor)的製造與 發展和 MOST (Metal-Oxide Semiconductor Transistor) 技術與 IC (Integrated Circuit ) 工業技術是密不可分的。ISFET 是屬於 MOST 的元件,故它相容於 MOSFET (Metal-Oxide Semicondurctor Field Effect Transistor) 的製程。若選擇適當的有機物或無機物的絕緣 材料作為閘極的感測部分,則可以感測不同的的離子或其他的化學族類。電腦輔助設計 CAD (Computer Aided Design) 的應用程式中的內建電子元件模型和電路分析的功能, 提供了 ISFET 元件模擬的可行性。 本論文先討論 ISFET 系統的操作機制及原理, 建立等效閘極電路的理論模型。 再棌用 PASCAL 高階語言計算出等效閘極電壓, 然後使用 PSPICE 的 MOSFET 的元件參數建立 ISFET 的元件模型。將此模型應用於電子電路,分析不同酸鹼度值時的電路輸出,並且以不 同的參數值代入,研究個別的參數對電路輸出的影響, 以瞭解 ISFET 在醫工感測器上之實 用性。 |
英文摘要 | The manufacture and development of the ISFET have been closely associated with MOST technology and IC technique. The ISFET is one of components of MOST. Therefore, the process of producing the ISFET is compatible with the MOSFET. By choosing appropriate inorganic (or organic) insulators for the gate of the ISFET, the devices will sense differentions or other chemical species. CAD programs are available for the simulation of the biosensor based on the ISFET by using its built-in models and the analytical capability of the electrical circuit. In this paper, firstly, we study the mechanism and theorem of the ISFET system so that we can calculate the equivalent gate voltage. Secondly, we exploit the PASCAL high level program language to calculate the output voltage of the equivalent gate circuit. Then, a MOSFET model of PSPICE can help us set up the structure of the ISFET. Finally, we combine the equivalent gate voltage and one ISFET structure to simulate various electrical a circuits in all value conditions. We analyse different results arising from individual parameters of the ISFET system. With this method we will find the characteristics of a biosensor based on the ISFET. |
本系統中英文摘要資訊取自各篇刊載內容。