High mobility p-type transition metal tri-antimonide and related

Active solid-state devices (e.g. – transistors – solid-state diode – Specified wide band gap semiconductor material other than...

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257613, 252 623T, H01L 310256

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active

058312862

ABSTRACT:
Transition metals (T) of Group VIII (Co, Rh and Ir) have been prepared as semiconductor alloys with Sb, P, and As, having the general formula TX, wherein X is Sb.sub.3, P.sub.3, or As.sub.3. The skutterudite-type crystal lattice structure of these semiconductor alloys and their enhanced semiconductor properties results in semiconductor materials which may be used in the fabrication of power semiconductor devices to substantially improve the efficiency of the resulting semiconductor device. Semiconductor alloys having the desired skutterudite-type crystal lattice structure may be prepared in accordance with the present invention by using vertical gradient freeze techniques, liquid-solid phase sintering techniques, low temperature powder sintering and/or hot-pressing.

REFERENCES:
patent: 5610366 (1997-03-01), Fleurial et al.

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