Patent ID: 6277673
Filing Date: 2001-08-21
Classification: H01L,Y10T

Abstract:
A method of making a lead frame for a semiconductor assembly having a semiconductor device having two opposed peripheral sides, two opposed ends, an active surface in a first horizontal plane, a bottom inactive surface in a second horizontal plane, and a plurality of bond pads located on the active surface of the semiconductor device, a first portion of the plurality of bond pads located adjacent one of the two opposed peripheral sides and a second portion of the plurality of bond pads located adjacent another of the two opposed peripheral sides, said method comprising:forming a first plurality of lead fingers extending substantially in the first horizontal plane of the active surface of the semiconductor device, each lead finger of the first plurality of lead fingers terminating in an end located adjacent a peripheral side of the two opposed peripheral sides of the semiconductor device; andfoiling a second plurality of lead fingers extending below the bottom inactive surface of the semiconductor device, each lead finger of the second plurality of lead fingers having a portion thereof extending adjacent an end of the opposed ends of the semiconductor device and terminating in an end located adjacent a peripheral side of the two opposed peripheral sides of the semiconductor device, at least one lead finder of the second plurality of lead fingers including a section extending substantially in the first horizontal plane.