A leadframe chip scale package includes a double leadframe assembly. The
first leadframe has a central die paddle and peripheral leads, and the
second leadframe, superimposed over the first leadframe in the package,
has peripheral leads. The peripheral leads of both leadframes are
situated in at least one row along an edge of the package, and in some
embodiments in a row along each of the four edges of the package. The
leads are patterned such that when the second leadframe is superimposed
over the first leadframe, the leads do not contact each other; in a plan
view, the leads of the first leadframe appear to be interdigitated with
the leads of the second leadframe.