With the new DS Laser, Mühlbauer has developed a particularly gentle die handling method. Instead of a mechanical die release system, the DS Laser works with a laser shot which releases the die from the wafer. Compared to the use of standard die ejector needles, the chip is exposed to no mechanical stress during the lift. The good dies are picked up from the wafer, flipped by 180° and placed face down into the carrier tape. Different automatic optical inspection features such as top, bottom and sidewall inspection and IR (in combination with an automatic replacement function of bad dies in the tape pocket) guarantee an optimal output yield with 100% optical inspection of all dies. The system has a throughput of up to 12,000 UPH for flip chip, including vision inspection.
» Beating the 12.000 UPH
» Ready for ultra-thin die handling (down to 20 µm)
» Pick-from-glass capability
» Defect detection of 9µm defects and 5µm on sidewall
» Infrared: sidewall and backside IR inspection