11.   It is designed to produce small samples of powerful new semiconductor materials in the contaminant-free vacuum formed in its wake.

12.   LEDs are built by laying down microscopically thin crystalline layers of semiconductor material.

13.   Lo said many semiconductor materials with great potential could not be grown in quantity with the necessary purity because there was no good substrate on which to produce them.

14.   ON THE WAY TO NEW SEMICONDUCTORS Scientists at Cornell said they had found a way to overcome a significant obstacle to making new semiconductor materials.

15.   Researchers suspended operations of an experimental satellite designed to produce semiconductor materials Tuesday, when the saucer-shaped spacecraft overheated and began to wobble.

16.   Research is continually improving the efficiency of solar photovoltaic cells, silicon semiconductor material that produces electric current when sunlight excites its electrons.

17.   Rodgers attacked the premise that semiconductor material grown in space should be perfect, and therefore should make better and faster chips.

18.   Researchers hope to produce at least two three-inch wafers of semiconductor material that can be fashioned into a working transistor and junction when the flight has concluded.

19.   Seven sample wafers of semiconductor material were manufactured.

20.   Shares of the Danbury-based company, which makes semiconductor materials, dropped after second quarter earnings failed to meet investor expectations, analysts said.