About: http://webisa.webdatacommons.org/75667026

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	The step portion 42 is made of an insulating material, such as polyimide, epoxy, silicon or silicon oxide, or formed by etching the surface of the glass circuit substrate 41.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr