About: http://webisa.webdatacommons.org/401501080

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	These two layers are in addition to the main layer of the printed circuit board, silicon wafer, or other substrate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com