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phosphide |
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phosphideAny of a class of chemical compounds in which phosphorous is combined with a metal. Phosphides exhibit a wide variety of chemical and physical properties. Phosphides that are rich in metal have high melting points and are hard, brittle, and chemically inert; these compounds have high thermal and electrical conductivities. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Next, the team cut up the wafers to yield laser chips in which an applied voltage makes the indium phosphide layer produce light. Three substances for which there were no previous IARC evaluations have now been evaluated and classified: gallium arsenide is classified as a Group I human carcinogen, indium phosphide as a Group 2A (probable) human carcinogen, and vanadium pentoxide as a Group 2B (possible) human carcinogen (IARC, in press a). The divide-by-2 and divide-by-4 circuits were designed by BAE Systems and manufactured in Vitesse's second generation Indium Phosphide Heterojunction Bipolar Transistor process (VIP-2(TM)). |
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