Patent ID: 6064194
Filing Date: 2000-05-16
Classification: G01R,H01L,Y10T

Abstract:
A method of positioning a semiconductor die for testing within a test fixture having at least first and second sections, comprising:providing a wafer assembly having a plurality of independently selectable dice;providing an assembly mechanism comprising,a movable die transporting assembly,at least one imaging assembly for providing an imaging output signal, anda controller assembly operable in response to a program stored in an electronic media, said controller assembly operably coupled to receive said imaging output signal and to control the position of said die transporting assembly at least partially in response thereto;retrieving a single die from said plurality of independently selectable dice of said wafer assembly;forming an image representative of at least a portion of said single die;providing first and second mating sections of a test fixture for receiving a single die;operating said controller assembly to compare said image of at least a portion of said single die to a representation of at least one of said first and second sections of said test fixture and to move said die transporting assembly carrying said retrieved single die to place said single die in a desired registry relative to said at least one of said first and second sections of said test fixture; andmutually securing said first and second sections of said test fixture in mating relationship to retain said single die in said desired registry relative to said at least one of said first and second sections of said test fixture.