PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the manufacture of integrated circuits, materials such as silicon dioxide, silicon nitride, polysilicon, metal, metal silicide, and monocrystalline silicon, that are deposited or otherwise formed on a substrate, are etched in predefined patterns to form gates, vias, contact holes, trenches, and/or interconnect lines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com