Patent ID: 7415759

Claim:
A method for mounting semiconductor chips onto a substrate whereby semiconductor chips adhered to a foil are presented on a wafer table, detachment of a semiconductor chip from the foil is accomplished using a die ejector and a pick and place device picks the semiconductor chip presented above the die ejector and deposits the semiconductor chip on a substrate place, the method comprising: providing the substrate having a plurality, n, of substrate places for accepting n of semiconductor chips arranged next to each other in a column, whereby the column runs orthogonally to a transport direction designated as x direction; forward-feeding the substrate along the transport direction; and mounting semiconductor chips on a predetermined number of columns in accordance with the steps: moving the pick and place device in the transport direction to an x position corresponding to a respective column on the substrate, moving the die ejector to the x position corresponding to the respective column, placing n semiconductor chips on the n substrate places of the column without moving the substrate in the transport direction and without moving the pick and place device in the transport direction except for correction movements that are small in comparison with a distance between adjacent columns and without moving the die ejector, the placing including the substeps iteratively executed n times: moving the wafer table to present a next semiconductor chip above the die ejector, and using the pick and place device to pick the semiconductor chip presented above the die ejector and deposit the semiconductor chip on a respective substrate 23 and 24 place of the respective column.