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班 級:積體所碩二 學 生:許庭耀 指導教授:易序忠 老師

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Presentation on theme: "班 級:積體所碩二 學 生:許庭耀 指導教授:易序忠 老師"— Presentation transcript:

1 班 級:積體所碩二 學 生:許庭耀 指導教授:易序忠 老師
A dynamic threshold voltage MOSFET (DTMOS) for very low voltage operation Fariborz Assaderaghi, Stephen Parke, Dennis Sinitsky, Jeffrey Bokor, Ping K. Ko and Chenming Hu, ” A dynamic threshold voltage MOSFET(DTMOS) for very low voltage operation,” IEEE Electron Device Letters, vol. 15,  issue 12,  pp , Dec 班 級:積體所碩二 學 生:許庭耀 指導教授:易序忠 老師

2 Outline Experiment and Results Conclusion

3 Experiment and Results
Fig (a) Cross section of an SOI NMOSFET with body and gate tied together. (b) Gate to body connection by using aluminum to short the gate and P+ region.

4 Experiment and Results
Fig. 2. Threshold Voltage of SOI NMOSFET as a function of body-source forward bias.

5 Experiment and Results
Fig. 3. Subthreshold characteristics of SOI NMOSFET and PMOSFET operated with body grounded and body tied to the gate. Body to source currents are also shown for the case of DTMOS (body tied to the gate).

6 Experiment and Results
Fig. 4. Drain current of an SOI NMOSFET operated as a DTMOS and as a regular device.

7 Experiment and Results
Fig. 5. Delay of a 101-stage ring oscillator.

8 Conclusion DTMOS is ideal for very low voltage ( < 0.6 V ) operation.


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