Patent ID: 6073828
Filing Date: 2000-06-13
Classification: H01L

Abstract:
A method of making an end effector for holding piece parts, wherein the piece parts are to be accurately held relative to each other, the end effector including a tower and at least one spatula, the at least one spatula having a first edge; the method comprising:providing the tower with a plurality of grooves, each of the grooves defining a ledge and a staking portion opposite to the ledge, one of the ledges being a reference ledge defining a common reference surface, respective additional ones of the ledges being spaced from the common reference surface by a selected distance and a multiple of the selected distance to provide additional grooves and additional ledges without tolerance stacking;inserting the first edge of the at least one spatula into one of the grooves with the at least one spatula on the ledge of the one groove; andstaking the staking portion of the one groove to hold the inserted first edge of the at least one spatula against the ledge of the one groove.