电子技术专业英语教程课件VIP专享VIP免费

《电子技术专业英语教程》Unit 1 Introduction Lesson 1 Semiconductor Materials《电子技术专业英语教程》冯新宇 主编电子工业出版社 www.phei.com.cn《电子技术专业英语教程》25/3/52Lesson 1 Semiconductor Materials• Backgrounds• Text tour • Language in use– Vocabulary – Structure – Reading/writing techniques《电子技术专业英语教程》25/3/53• Terminology– Conductor, Semiconductor & insulator– IC, ULSI– IMPATT , LEDBackgrounds《电子技术专业英语教程》25/3/54Terminology 《电子技术专业英语教程》25/3/55• In general, all materials may be classified in three major categories — conductors, semiconductors, and insulators-depending upon their ability to conduct an electric current. 通常，根据材料导电性能的不同，可分为三种类型—导体，半导体和绝缘体。 Conductor, Semiconductor & insulator《电子技术专业英语教程》25/3/56• The materials most often used in semiconductor devices are germanium and silicon. Silicon (Si) and germanium (Ge) widely used elemental semiconductors. • 通常用于半导体器件的半导体材料是锗和硅，它们是应用最广的半导体材料。Conductor, Semiconductor & insulator《电子技术专业英语教程》25/3/57•The integrated circuit is a group of transistors manufactured from a single piece of material and connected together internally, without extra wiring . Integrated circuits are also called ICs or chips. •集成电路就是一组用单片材料制造的，内部互联的（无外部连线）晶体管。集成电路也叫 IC 或者芯片。IC, ULSI 《电子技术专业英语教程》25/3/58•Large-scale integration ("LSI") came to refer to the creation of integrated circuits that had previously been made from multiple discrete components. •ULSI ： Ultra Large-scale Integration 特大规模集成电路•ULSI circuits can contain 107-109transistors.IC, ULSI 《电子技术专业英语教程》25/3/59IMPATT , LED•An IMPATT diode (Impact Ionization Avalanche Transit-Time) is a form of...