According a method of manufacturing a lead frame of the present invention, a plurality of leads each having an inner lead portion and an outer lead portion are formed on {TAIL ~ a metal base} having on {HEAD ~ its surface} a nickel layer by copper plating 
According a method of manufacturing a lead frame of the present invention , a plurality of leads each having an inner lead portion and an outer lead portion are formed on { TAIL ~ a metal base } having on { HEAD ~ its surface } a nickel layer by copper plating
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH