課程名稱︰奈米電子導論 課程性質︰ 課程教師︰ 開課學院：電資學院 開課系所︰電機系 考試日期（年月日）︰2022/04/06 考試時限（分鐘）：180 試題 : 1. (4 pts) Please list four basic fabrication processes that can be used in micro/nano fabrication. 2. (9 pts) Please briefly introduce the process of photolithography. 3. (4 pts) Please name two differences between "positive photoresist" and "negative photoresist". 4. (8 pts) Please give a general description of the instruments required to develop nanotechnology-based semiconductor technology? And the related fields of development? 請大致說明以半導體技術為基礎的奈米科技其發展所需的儀器設備? 以 及相關發展的領域? 5. (9 pts) How is the energy band formed? (Describe the behavior of electrons.) In contrast, how is the quantum well formed? 為什麼會形成能帶?請就電子的行為描述之,相對的量子井又是如何形成? 6.(5 pts) Which microcavity can be fabricated on a chip with potentially the highest quality factor Q? (a) microsphere, (b) microtoroid, (c) photonic crystal, (d) microdisk. 7. (4 pts) What kind of microcavities will have the highest enhancement of spontaneous emission? (a) high Q and large volume, (b) low Q and small volume, (c) high Q and small volume, (d) low Q and large volume. 8. (4 pts) At which temperature will it be possible to observe the quantum confinement effect in a semiconductor structure with feature size of 80 nm? (a) 4K, (b) 273K, (c) 500K, (d) 1000K. 9. (4 pts) Which of the following materials in general has the highest material gain? (a) bulk semiconductor, (b) quantum wells, (c) quantum wires, (d) quantum dots. 10. (3 pts) Please give THREE different self-emitting display technologies (自發光顯示技術)。 11. (2 pts) Please give TWO different non-self-emitting display technologies (非自發光顯示技術) 12. (4 pts) Many displays nowadays feature a specification of high resolution (高解析度), such as a 4K x 2K display or a 440 ppi display. Please explain what does 4K x 2K mean? What is the meaning of 440 ppi? (hint: angular or spatial resolution of human eyes/retina) 13. (4 pts) Please explain the meaning of "color gamut" (色域範圍) and "gray level"(灰階) that are often listed in the specifications of display products. 14. (2 pts) Usually for a display screen, at least tens of images/frames per second (i.e.,frame rate, 畫面更新率) should be provided so that one can see a continuous, dynamic video presentation. Please briefly explain the reason/mechanism. 15. (2 pts) Please briefly explain the structure of the liquid crystal device (液 晶元件) and how it functions as an optical switch device in the liquid crystal displays (LCDs)? ================================試題結束================================ _ _ _ _ _ 6.-9.參考解答: (b)(c)(a)(d) --

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