About: http://webisa.webdatacommons.org/70034012

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Hitherto, as a semiconductive materials, so-called various compound semiconductors mainly composed of Si or Ge have been known.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com