About: http://webisa.webdatacommons.org/129541341

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	Also, the semiconductor substrate is made of a gallium nitride type compound semiconductor similar to those of the relatively thick layers such as the cladding layers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com