半导体( semiconductor),指常温下导电性能介于绝缘体(insulator)与导体(conductor)之间的材料。人们通常把导电性差的材料,如煤、人工晶体、琥珀、陶瓷等称为绝缘体。而把导电性比较好的金属如金、银、铜、铁、锡、铝等称为导体。与导体和绝缘体相比,半导体材料的发现是最晚的,直到20世纪30年代,当材料的提纯技术改进...
A semiconductor is a material product with some of the properties of both insulators and conductors (hencesemi,meaning half or partial, conductor). Semiconductors are usually comprised of silicon, since this conducts electricity more than an insulator, such as glass, but less than a pure conductor...
半导体(semiconductor),指常温下导电性能介于导体(conductor)与绝缘体(insulator)之间的材料,是一种常温下导电性可控的材料。我们通常把导电性差的材料,如煤、人工晶体、琥珀、陶瓷等称为绝缘体。而把导电性比较好的金属如金、银、铜、铁、锡、铝等称为导体。可以简单的把介于导体和绝缘体之间的材料称为半导体。 无...
An insulator or semiconductor in the dark and a conductor when exposed to lightdoi:US5445766 Awhere 0.4≦x≦1, y=2 and z=9-10.5, wherein said substance is an insulator or a semiconductor in the dark, and has a photoconductivity Q(λ,T) in conjugate with superconductivity of a ...
结果1 题目A "semiconductor" is a material that has electrical conductivity between that of a conductor and an insulator, and is commonly used in the manufacturing of ___.相关知识点: 试题来源: 解析 答案:electronic devices 反馈 收藏
Semiconductor – Facts and Physics As I mentioned above, a semiconductor has a dual property – conductor and insulator of electricity. This property depends on impurities added to the semiconductor material (Apure such materialis called an “intrinsic”). The impurities added to the material to ch...
The spacing of these energy levels and how they're filled with electrons determines if the material is a conductor, insulator, or semiconductor. 图2.1 半导体工作原理 How semiconductor works? 图2.2 半导体工作原理 How semiconductor works? 如果较低能级和较高能级之间有巨大的差距,则电子很难跃迁到更高...
Semiconductor definition: a substance, as silicon or germanium, with electrical conductivity intermediate between that of an insulator and a conductor. See examples of SEMICONDUCTOR used in a sentence.
A semiconductor is a substance that falls somewhere on the continuum between conductor and insulator. Manufacturers process silicon and other materials into semiconductors for all kinds of electronic devices that rely on harnessing electricity for processing power. And these semiconductors, or chips, are...
The meaning of SEMICONDUCTOR is any of a class of solids (such as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly abse