About: http://webisa.webdatacommons.org/246055385

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	Then, N-type impurity such as phosphorus is selectively diffused in the P well region 3 through masks of the gate electrode 6 and the polysilicon layer 6a to form the N+ emitter region 4 in a self-regulating manner.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com