About: http://webisa.webdatacommons.org/347706347

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	It is easier to obtain a pattern free from alkali metal ions such as sodium or potassium which have undesirable effects upon semiconductors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com