
芯片就是大众所熟悉的IC,是半导体元件的统称,是指内含集成电路的硅片,是计算机和电子设备的一部分。集成电路英语:integrated circuit,缩写作 IC;或称微电路(microcircuit)、微芯片(microchip)、晶片/芯片(chip)在电子学中是一种将电路(主要包括半导体设备,也包括被动组件等)小型化的方式,并时常制造在半导体晶圆表面上。
芯片分类:
1、数字集成电路可以包含任何东西,在几平方毫米上有从几千到百万的逻辑门、触发器、多任务器和其他电路。这些电路的小尺寸使得与板级集成相比,有更高速度,更低功耗(参见低功耗设计)并降低了制造成本。这些数字IC,以微处理器、数字信号处理器和微控制器为代表,工作中使用二进制,处理1和0信号。
2、模拟集成电路有,例如传感器、电源控制电路和运放,处理模拟信号。完成放大、滤波、解调、混频的功能等。通过使用专家所设计、具有良好特性的模拟集成电路,减轻了电路设计师的重担,不需凡事再由基础的一个个晶体管处设计起。
3、集成电路可以把模拟和数字电路集成在一个单芯片上,以做出如模拟数字转换器和数字模拟转换器等器件。这种电路提供更小的尺寸和更低的成本,但是对于信号冲突必须小心。
The power semiconductor device and the micro electronpower semiconductor device is in the semiconductor device important link, it and the micro electron component relations is close, because the micro electron component required power semiconductor device forms a complete set provides its power source and the execution system.If develops rapidly computer, when CPU from 286,486, to gallops I, II, III, IV…When development, to took the power source the power semiconductor request increasingly is also harsh.For example the present is developing the voltage to be smaller than 1 volt, on the electric current hundred amperes power sources, this must develop the newest MOSFET component to be able to meet the needs.In order to achieve these renew unceasingly the performance index, the power semiconductor device must use the micro electron component similar fine craft.This will also be this article is detailed narrates.
The power semiconductor device and the integrated circuit close union, in the one has arranged in order four aspects in the chart: Namely
1) power and micro electron component in chip manufacture craft already day by day close: The power MOS component in order to achieve a better performance, for example requests to pass condition the resistance lowly, its craft already from 20 year ago several microns technologies rapidly to submicron even deep submicron development.This and the micro electron component development is consistent.
2) the MOS component seal technology is also approaching to the integrated circuit.These for years, the power MOS component has used has inverted (Flip) likely, ball grid array (BGA) and packing forms and so on multi-chip module (MCM).These all are the quite new integrated circuit packing forms.
3) looked from the component structure that, makes the power MOS component and the integrated circuit in the identical chip perhaps the identical packing, is one of recent development directions.Therefore the power semiconductor device equates simply for established separately the component no longer to be appropriate.Take the IR Corporation product as the example, the power integrated circuit, perhaps and IC does in the same place power component, as well as the special advanced component, held its product one above the half.
4) the comprehensive solution (Total Solution) is each kind of component finally conceives.Seeks the component the function integrity, in the solution application all questions is the component manufacturer's ideal.Had the integrated circuit to enter the power semiconductor device, this kind of comprehensive solution plan was easier to realize.Not only to the low power direction is so, even the high efficiency direction is also pursuing a greater integration rate and the comprehensive solution.Certainly, contains all functions by a component not necessarily forever is the preferred plan.For example must consider the rate of finished products the loss, but also must pay attention to the protection customer to develop the electric circuit on own initiative the enthusiasm.
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