Patent ID: 6698088
Filing Date: 2004-03-02
Classification: H01L,Y10T

Abstract:
A universal clamping device for processing lead frames of various shapes and sizes, comprising:a porous block with a first side and a second side, wherein the porous block comprises a plurality of holes on the second side of the porous block, wherein a density of the plurality of holes is at least 5 holes per square centimeter, wherein the first side of the porous block is the bottom side and the second side of the porous block is a top surface, and wherein the second side of the porous block is exposed to allow lead frames of various shapes and sizes to be placed on the second side of the porous block, so that the porous block may universally hold lead frames of various shapes and sizes; a vacuum system connected to the first side of the porous block; and a chip attaching device on the second side of the porous block, for attaching chips to lead frames of various shapes and sizes.