Patent ID: 6515353
Filing Date: 2003-02-04
Classification: G11C,H01L

Abstract:
A multilayer lead frame and a semiconductor die comprising:a first conducting lead frame body including a die paddle for supporting a semiconductor die, said die paddle having a perimeter, at least one first main lead finger depending from said die paddle, a first lead finger bar depending solely from said at least one first main lead finger supporting a first plurality of lead fingers extending from said first lead finger bar adjacent a first portion of said perimeter of said die paddle; a second conducting lead frame body including a plate and at least one second main lead finger depending from said plate; at least one additional lead frame segment including one lead finger bar supporting an additional plurality of lead fingers, the lead fingers of each said at least one additional lead finger segment extending from the first main lead finger bar to adjacent one of said die paddle and said plate; an insulating material disposed between and substantially touching said die paddle and said plate, said insulating material being selected from a group consisting of a polyimide and an adhesive tape; and a semiconductor die attached to said die paddle having wire bonds to said at least one first and at least one second main lead fingers and said first and additional pluralities of lead fingers.