About: http://webisa.webdatacommons.org/313670157

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	A second liquid etchant stream may be delivered to the backside of wafer 224 in order to etch off any copper or other unwanted metal that may have been deposited on the backside of wafer 224.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com