{HEAD ~ A polyimide surface} is pretreated in preparation for an adhesion promotion treatment and subsequent metallization on the surface, wherein {TAIL ~ the pretreatment} comprises the steps of: 
{ HEAD ~ A polyimide surface } is pretreated in preparation for an adhesion promotion treatment and subsequent metallization on the surface , wherein { TAIL ~ the pretreatment } comprises the steps of :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH