Patent ID: 7389903

Claim:
A device for soldering contacts on vertically integrated semiconductor chips, comprising: a clamping device that receives and transports a wafer having components; a flushing device including a plate with a window, a first gas channel and a first gas outlet opening arranged at the window, the flushing device being aligned parallel to a transporting area of the clamping device intended for the wafer to be held in position above the clamping device; a chip mount arranged above the clamping device over the window such that a chip can be held on a side of the chip mount facing the clamping device and over the wafer, and the chip can be brought near the wafer by means of a vertical movement of the chip mount with respect to the wafer; and a heater that heats a chip held on the chip mount from a side of the chip facing the chip mount at least to a degree that a solder applied to an opposite side of the chip is melted, wherein an edge of the plate is provided with a second gas channel disposed at an edge of the plate and a second gas outlet opening for the second gas channel, which points towards the edge of the plate adapted to expel a gas parallel to the clamping device.