11.   Cole plans to return the shiny silicon wafer now in his office to the City Hall bathroom.

12.   Computer chips are crafted from the silicon wafers.

13.   Cutini said investors were excited because OnTrak will soon start selling a device to polish as well as clean silicon wafers.

14.   Electrotech specialized in the deposition half of computer chip manufacturing, in which thin layers of metal and insulation are laid onto silicon wafers.

15.   For example, Perlegen Sciences, an affiliate of Affymetrix, puts DNA on silicon wafers to compare differences in the DNA of individuals.

16.   For his devices, Dr. Harold G. Craighead, a professor of applied and engineering physics at Cornell University, starts with a flat silicon oxide wafer.

17.   FSI, based in Minneapolis, produces automated surface conditioning equipment for making silicon wafers.

18.   He came up with the technique of printing solar cells on silicon wafers.

19.   IBM engineers have found a way to embed an ultrathin layer of insulating material just under the surface of a silicon wafer.

20.   Ibis makes silicon wafers for the integrated circuits used in PCs, mobile phones, hand-held computers and optical sensors.