以介绍半导体为主题的英语作文

钻石可能成为理想的半导体

Along with being a "girl's best friend," diamonds also have remarkable1properties that could make them ideal semiconductors3. This is welcome news for electronicssemiconductors are needed to meet the rising demand for more efficient electronics that deliver and convert power. The thirst for electronics is unlikely to cease and almost every appliance or device requires a suite4of electronics that transfer, convert and control power. Now, researchers have taken an important step toward that technology with a new way to dope single crystals of diamonds, a crucial process for building electronic devices.

"We need the devices to manipulate the power in the way that we want," said Zhengqiang (Jack) Ma, an electrical and computer engineering professor at the University of Wisconsin-Madison. He and his colleagues describe their new method in the Journal of Applied5 Physics, from AIP Publishing.

啊，半导体的发展对当今世界的发展可太大啦！以前，电子电路的主要元件是电子管，它实际是阴极发射管，是用玻璃作的外壳，它的特点是，体积大，重量大，消耗电能多，发热量大。人类第一台电子计算机就是用电子管做的，整个机器占了几间屋子，有几吨重呢。基于电子管的电子电路及各种电子仪器绝对不可能做到小型化甚至微型化。还记得在老电影中看到的背在身上的“步话机”吧，它的功能比我们现在用的手机还差，但体积和重量却大了很多，其实那已经就是很小型化的了呀，不可能再小了。

而用半导体制作的“管子”，可以做得很小，耗电也只是电子管几十、几百甚至几千分之一，想想吧，现在我们的微机中的一个CPU（中央处理器），它是一个集成电路，在它里面包含有几千万个“管子”，如果用电子管制作，会是怎样一个概念？这还没算微机中其它的元件呢！

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