Patent ID: 6519840
Filing Date: 2003-02-18
Classification: H01L,Y10T

Abstract:
Method for mounting semiconductor chips one after the other on a substrate, whereby a plurality of semiconductor chips stick on a foil clamped in a frame and whereby in a working cycle a table accepting the frame is moved in order to present a semiconductor chip at a first location and a chip gripper grips the semiconductor chip presented at the first location and transports it to a second location located on the substrate, the method compring the steps of:a. Moving the table to present a new semiconductor chip at the first location, whereby a certain position deviation from a set position is permissible; b. Suction and securing of the foil on a surface of a chip ejector facing the foil; c. Establishing an actual position of the semiconductor chip with a measuring camera directed at the first location; d. Determining a correction vector which represents a deviation of the established actual position of the semiconductor chip from its set position at the first location; e. Moving the chip ejector by the correction vector: and f. Removing the semiconductor chip from the foil.