SILICON MATERIAL FOR INFRARED TRANSMITTING MEMBERS, AND INFRARED TRANSMITTING MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a silicon material for an infrared transmitting member which secures transmittance for infrared of around 9 μm wavelength and can be used for wide range of wavelength, and to provide an infrared transmitting member made of the silicon material. SOLUTION: A silicon material for an infrared transmitting member used for a material of infrared transmitting members such as an infrared transmitting lens, prism, or the like, includes a polycrystalline silicon. The resistivity of the polycrystalline silicon is 1 Ωcm or more and the oxygen concentration is less than 1.0×1018atoms/cc. COPYRIGHT: (C)2011,JPO&INPIT