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美国航天飞机最近带着一个圆盾型的人造卫星到环绕地球的太空轨道上飞行16天,以便科学家研究如何制造新一代的半导体材料,供发展高科技使用。 这个人造卫星内有“太空真空多晶器材”以及砷、镓等多晶用的材料。宇航员把这个人造卫星放到离航天飞机数十英里以外的太空轨道中自行飞行,然后科学家从地面用遥控的方法,制造半导体薄膜。 科学家相信,在太空的无重力和真空状态下,用多晶造出来的半导体纯度会很高,且质量会很均匀,其导电性可望比在地球上用硅制成的半导体好很多。砷和镓是化学属性与硅相邻的元素,用这种材料做出的半导体所制造的计算机和其他高科技产品的性能,将比
The U.S. space shuttle recently flown 16 days into a space orbit around the Earth with a round-shaped satellite to allow scientists to study how to make a new generation of semiconductors for high-tech development. This artificial satellite has “space vacuum polycrystalline equipment” and arsenic, gallium and other polycrystalline materials. The astronauts flew the satellite in space orbit, some tens of miles away from the space shuttle, and scientists made the semiconductor film remotely from the ground. Scientists believe that in spaceless gravimetric and vacuum conditions, semiconductors made from polycrystals will be of high purity and uniform mass, and their electrical conductivity is expected to be much better than semiconductors made of silicon on Earth. Arsenic and gallium are chemical elements that are adjacent to silicon. The performance of semiconductors made with this material, such as computers and other high-tech products,