Patent ID: 9524883
Filing Date: 2016-12-20
CPC Classification: H01L

Claim Text:
1. A manufacturing method comprising: obtaining a microelectronic workpiece comprising a first side and a second side opposite to the first side, the workpiece comprising first circuitry comprising a plurality of first conductive features each of which forms a protrusion on the first side; obtaining a first structure comprising a first plurality of holes; placing the first structure between the workpiece's first side and a holding stage of a holder so that each of said protrusions enters a respective one of the holes and at least two protrusions enter respective different holes, with the first structure being in a first position relative to the workpiece without being bonded to the first structure; operating the holder to create an attraction force that holds the workpiece on the first structure in the first position without separately bonding the workpiece to the first structure; with the workpiece being in the first position, processing the second side of the workpiece; after processing the second side of the workpiece, operating the holder to diminish the attraction force; and then separating the workpiece from the first structure.