| 研究生: |
周永泰 Chou, Yung-Tai |
|---|---|
| 論文名稱: |
平面式金屬氧化半導體控制晶片元件設計與製程研究 Planar MOS Control Diode Components Design and Process Research |
| 指導教授: |
李文熙
Lee, Wen-Hsi |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電機工程學系 Department of Electrical Engineering |
| 論文出版年: | 2016 |
| 畢業學年度: | 104 |
| 語文別: | 中文 |
| 論文頁數: | 56 |
| 中文關鍵詞: | 金屬氧化物半導體控制二極體 、蕭特基二極體 、PN二極體 、超級障壁整流器 |
| 外文關鍵詞: | MOS Control Diode, Schottky Diode, PN Diode, SBR |
| 相關次數: | 點閱:63 下載:2 |
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本論文研究是研究金屬氧化物半導體控制二極體(MOS Control diode)的元件設計及製作,並以平面式金屬氧化物半導體控制二極體(Planar MOS Control diode)元件為主體架構探討如何改善傳統蕭特基功率二極體的電性特性。金屬氧化物半導體控制二極體於電力電子的應用中,具有低順向電壓(VF)和元件的功率損耗較低,而且在關閉狀態下的漏電流比傳統蕭特基二極體較低,其有較好的高溫逆向特性能力,可以於較高的環境溫度下工作。因傳統蕭特基二極體的漏電於高溫下較高,因此傳統蕭特基二極體(屬MS接觸)在高溫操作下其逆向功率損耗較高,蕭特基會因溫度而快速地降低性能,無法在較高溫系統中容易熱跑脫(Thermal runaway),造成元件燒毀。
本文中的金屬氧化物半導體控制二極體(MOS Control diode)結構中最重要的部份是在MOS通道下形成薄的gate oxide,此薄的gate oxide形成超級障壁使主要載子排除Schottky (MS contact)接觸元件,利用金屬氧化物半導體閘極可以調整電位能障,這使得金屬氧化物半導體控制二極體的基本操作原理與蕭特基障壁二極體相似,具有較穩定及可靠的快速極低功耗二極體元件,另其具有可耐較高的接面溫度(Tj),使其可應用於較高溫的環境。
This thesis is to study the design and process of MOS Controlled diode device. At the same time, it sees a Planar MOS Controlled diode device as the main framework to improve the electrical characteristics of the traditional power Schottky diode. (MOS Control diode) in the applications of power electronics has low forward voltage (VF) and lower power consumption of device. Besides, the leakage is lower than traditional Schottky diode under the off state. It performs better and can be operated at higher temperature. Due to the higher leakage of traditional Schottky diode is at higher temperature with higher reverse power consumption. Traditional Schottky reduces its performance rapidly with higher temperature and causes device burn with thermal runaway easily.
In this paper, the most important part of the (MOS Controlled diode) structure is the gate oxide to form MOS channel. The gate oxide produces a super barrier and makes major carriers without Schottky’s MS contact. The metal oxide semiconductor gate can adjust the electric potential. This makes the metal oxide semiconductor diode which controls its basic operation principles and with same electrical parameter of Schottky barrier diode. MOS controlled diode has more stable and reliable diode device due to its low consumption. As a result, it is with higher junction temperature Tj can be applied at higher temperature environment.
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校內:2021-06-27公開