Patent ID: 7095096
Filing Date: 2006-08-22
Classification: H01L

Abstract:
1. A leadframe panel suitable for use in forming a multiplicity of microarray packages, the leadframe panel comprising: a plurality of device areas, each device area including an array of contact posts suitable for forming external contact pads in a microarray package and a plurality of lead traces, the contact posts being arranged in a plurality of rows and each lead trace being coupled to an associated contact post, wherein upper surfaces of the contact posts and lead traces are substantially co-planar with an upper surface of the leadframe panel; and a thin, substantially uniform, solid, conductive connecting sheet integrally formed with the contact posts and the lead traces such that the contact posts and the lead traces rise above the connecting sheet, wherein a bottom surface of the connecting sheet is substantially co-planar with a lower surface of the leadframe panel and the contact posts, lead traces and connecting sheet are formed from a unitary structure; and wherein each device area is configured suitably to support an associated die, whereby the associated die may be electrically connected to selected contact posts underlying the die by electrically connecting the die to lead traces associated with the selected contact posts; and wherein the connecting sheet is arranged such that the connecting sheet can prevent molding material applied over selected device areas from penetrating the connecting sheet in a region below the selected device areas.