Patent ID: 8716845
Filing Date: 2014-05-06
Classification: H01L

Abstract:
1. A lead frame strip, comprising: an array of sites arranged in at least one row connected to two exterior side rails which traverse said lead frame strip on two opposite sides; wherein each of said sites includes a die pad having a die pad length along a first direction and a die pad width along a second direction or affixing a semiconductor die and leads for enabling electrical communication between said semiconductor die and a workpiece; wherein each of said sites is further connected to said two exterior side rails by subrails which extend between said two exterior side rails, and interior side rails extending between said subrails having a length dimension oriented along a first direction, wherein said interior side rails include at least one punch degating aperture having an aperture length oriented along said first direction, and wherein a total of said aperture length along said interior side rails is greater than or equal to said die pad length.