Patent ID: 6265761
Filing Date: 2001-07-24
Classification: H01L

Abstract:
A lead frame to support a semiconductor die within an encapsulating package, consisting essentially of:a first rail and a second rail in a first plane, said second rail parallel to and spaced apart from the first rail by more than the length of the encapsulating package;a first bar and a second bar connected perpendicularly to the first and second rails, said second bar spaced apart from the first bar by more than the width of the encapsulating package;a first plurality of leads connected perpendicularly to the first bar, each of the first plurality of leads having an unconnected lead end extending toward the second bar, said unconnected lead end located to extend under the supported semiconductor die;a second plurality of leads connected perpendicularly to the second bar, each of the second plurality of leads having an unconnected lead end extending toward the first bar, said unconnected lead end located to extend under the supported semiconductor die;a first support tab connected perpendicularly to the first rail with a first unconnected tab end extending toward the second rail, said first unconnected tab end located to extend under the supported semiconductor die;a second support tab connected perpendicularly to the second rail with a second unconnected tab end extending toward the first rail, said second unconnected tab end located to extend under the supported semiconductor die.