Patent ID: 9721819
Date: 2017-08-01
CPC Classifications: H01L

Claim:
1. A method for mounting semiconductor chips provided with bumps on substrate locations of a substrate, in which in a calibration phase first and second geometry data are determined and in a mounting phase the following steps are carried out for each semiconductor chip: either: with a wafer table providing the semiconductor chip at a predetermined location; with a pickup head of a flip apparatus removing the provided semiconductor chip and twisting the semiconductor chip by 180° in order to provide the semiconductor chip as a flip chip; or: with a feeding device providing the semiconductor chip as a flip chip; with a transport head receiving the flip chip from the pickup head or the feeding device; filling a cavity, which is arranged in a plate and formed with a transparent base, with fluxing agent, wherein the plate is either arranged in a stationary manner or is moved after the filling of the cavity so that the cavity is situated in both cases above a first camera, which is arranged in a stationary manner; depositing the flip chip in the cavity, wherein the bumps face the base of the cavity; recording an image of the flip chip with the first camera and determining an actual position of the flip chip with respect to a machine coordinate system of a bonding head on the basis of the image and the first geometry data; removing the flip chip from the cavity with the bonding head; determining an actual position of the substrate location with respect to the machine coordinate system of the bonding head by means of a second camera which is fastened to the bonding head, either by: calculating the position to be accessed by the bonding head on the basis of the determined actual position of the flip chip and the determined actual position of the substrate location; and moving the bonding head to the calculated position and placing the flip chip on the substrate location, wherein the transport head and the bonding head are at least partly simultaneously in motion.