Unit 3 Integrated Circuit,集成电路,Part One Electronics,Preparing for the text:,Technical terms: 1. electronic counter 电子计数器 2. frequency synthesizer 频率合成器 3. digital instrument 数字仪器 4. operational amplifier 运算放大器 Questions for text discussion: What functions can integrated circuits perform? Perform function in digital systems and in linear systems 2. What type of elements may integrated circuits possibly include? Transistors, diodes, and resistors etc. 3. Tell some advantages of using integrated circuits. Sharp size, and weight reductions, low cost .,The main idea of this unit:,This unit mainly discusses the basic knowledge about Integrated Circuit. (1) Integrated circuit is a combination of a few interconnected circuit elements such as transistors, diodes, capacitors, and resistors produced in a single manufacturing process on one and the same bearing structure, called the substrate, and intended to perform definite function involved in converting information. (2) ICs can be classified by function into two: circuits to be applied in digital systems and those to be applied in linear systems. (3) The invention of IC is a great revolution in the electronic industry. Sharp size, weight reductions are possible with these techniques; and more importantly, high reliability, excellent functional performance, low cost and low power dissipation can be achieved.,New words: combination kmbinein (a) n. 结合, 联合, 合并 in combination with 与联合 His character is a combination of strength and kindness. (b) n. 化合物 chemical combination 2. interconnect int(:)knekt vt. 使相互连接 two buildings interconnect inter- 相互之间的 interrelation 相互关系 interaction 交互作用,3. manufacture mnjufk n. 制造,制造业 the manufacture of cars 小汽车的制造 (b) v. 制造,加工(尤指大型工业的运作) manufacture plastic 制造塑料 Pay attention: compare manufacture and make. make: 指一般地做某件东西 manufacture: 常指工业方面产品的制造,4. bearing bri n. 支撑,承载 5. structure strk n. 结构 the structure of the brain 大脑的结构 grammer structure 语法的结构 (2) vt. 构造,组织 a teaching program 拟订教学大纲 6. definite definit (1) adj. 明确的,确切的 a definite answer 明确的答复,(2) adj. 一定的,不容置疑的 a definite victory 确定的胜利 7. function fkn (1) n. 功能,作用 the function of a teacher (2) n. 函数 In x=5y, x is a function of y. 8. principle prinspl (1) n. 原则(可用复数) the principle of democratic government 民主政治的原则,(2) n. 原理, 定律 The two instruments work on the same principle. 8. deposit dipzit (1) n. 堆积物, 存放物 rich deposits of oil and natural gas 石油和天然气的富矿层 (2) v. 存放 She deposited her money in the bank. 她把钱存在银行里. (3) v. 堆积, 沉淀 deposit the sand 沉淀沙子,9. distrubute distribju(:)t vt. 分发, 分送 distrubute the books to the students (2) vt. 散布, 分布 distrubute seeds over a field 在田间播种 10. reliability rilaibiliti n. 可靠性 adj. reliable 可靠的, 可以信赖的 11. dissipation disipein power dissipation 功耗,Expressions: 1.intend to 打算, 倾向于 eg: Today, I intend to finish reading this book. 2. make up v. 形成, 构成 eg: One hundred years make up a century. (2) v. 捏造, 编造 phrase: make up an excuses 编造借口,3. lie in 位于, 在于 eg: The solution lies in research. 答案在研究中. 4. Be classified by 把分成 eg: The books are classified by subjects. 这些图书按学科进行分类. 5. be widely used 广泛应用于 eg: The junction transistor is the most widely used active device in present-day electronic circutis.,Notes to the text: Integrated circuits ,or IC is a combination of a few interconnected circuit elements such as transistors, diodes, capacitors, and resistors produced in a single manufacturing process on one and the same bearing structure, called the substrate, and intended to perform definite function involved in converting information. 集成电路缩写为IC, 是几个互相连接的电路元件的组合，如晶体管、二极管、电容器和电阻等电路元件的组合。它们是在同一个基底结构上,同时是在一个单独制造过程中生产出来的，这个基底结构叫做衬底，集成电路可用在信息转换中执行一定的功能。,Pay attention: produced in a single manufactruing process on one and the same bearing structure, called the substrate and intended to perform definite function involved in converting information 为过去分词短语作定语修饰前面的 circuit elements, 其中的 produced 与intended to 为并列部分。而 called the substrate 为过去分词短语作定语修饰前面的 the same bearing structure ，同时 involved in converting information 也为过去分词短语作定语, 修饰前面的 function。,2. Each set contains all the components such as transistors, diodes, and resistors which are interconnected with short fine metallic stripes deposited on the wafer surface. 每个组包含诸如晶体管、二极管和电阻之类的全部元件，各元件用沉积在晶片表面上短细金属条纹互相连接起来 Pay attention: 句中的 which arethe wafer surface 为定语从句修饰前面的 transistors, diodes, and resistors, 而定语从句中的 deposited on the wafer surface 为过去分词短语作定语修饰前面的metallic stripes。,3.ICs can be classified by function into two: circuits to be applied in digital systems and those to be applied in linear systems. The digital ICs are employed mostly in computers, electronic counters, frequency synthesizers and digital instruments. And the analog, or linear ICs operate over a continuous range, and include such devices as operational amplifiers.,集成电路按其功能可分为两大类， 即用于数字系统的电路和用于线性