タイトルまたは説明

The specification. Silicon scrap (the scrap is from processing the ingots). â„– items Parameter Unit of measure Parameter point 1. The minimum weight of a piece, not less Gramme *0 2. Polarity of conductivity P-type (Boron) 3. Specific resistance (R) Ohm * sm *3 0, **3 4. Concentration of carbon, no more At/sm*3 1****7 5. Purity *9, ***9 (6N) 6. Other requirements to a material Has no inclusions of graphite, quartz, carbide of silicon and other mechanical inclusions. The surface of pieces has no visible traces of pollution.