Patent ID: 6131721
Filing Date: 2000-10-17
Classification: H01L

Abstract:
A lead frame transporting apparatus for transporting lead frames on which a plurality of package portions are located, comprising:a frame conveyor plate;driving means for driving said frame conveyor plate vertically and horizontally;slide shafts on said frame conveyor plate;a plurality of pad support members mounted slidably on said slide shafts, respectively;a plurality of suction pads mounted on respective pad support members for holding the package portions with suction;slide limiting means on said frame conveyor plate for limiting sliding of said pad support members, said slide limiting means comprising:a pitching fixing rack on said frame conveyor plate;a plurality of pad-side racks on said pad support members, each pad-side rack engaging said pitch fixing rack; anda plurality of biasing means on said pad support members for biasing said pad support members in a direction to engage said pad-side racks with said pitch fixing racks, wherein said pad support members are rotated about said slide shafts so that said pad-side racks are disengaged from said pitch fixing racks against resistance produced by said biasing means;a pad moving mechanism for releasing said slide limiting means and moving said pad support members along said slide shaft; anda controlling section for controlling said pad moving mechanism according to lead frame information input thereto to automatically adjust positions all of said pad support members.