Abstract: A large scale cell harvesting method for a pack-bed culture device by providing cell growing space that is packed with a plurality of porous matrices and/or matrix means. When a cell detaching step at least comprising shaking or spinning the culture chamber is performed, the unoccupied space is large enough for the porous matrices collide to each other or to the culture chamber to generate momentum whereby the cells detach from the porous matrices to harvest the cells.

Abstract: A large scale cell harvesting method for a pack-bed culture device by providing cell growing space that is loosely packed with a plurality of porous matrixes and/or matrix means. When a cell detaching step at least comprising shaking or spinning the culture chamber is performed, the unoccupied space is large enough for the porous matrixes collide to each other or to the culture chamber to generate momentum whereby the cells detach from the porous matrixes to harvest the cells.

Abstract: A singulation system for a BGA product is disclosed, which has a cutting mechanism with a cutting head, a conveyor belt arranged under the cutting head, a cutting table positioned to connect with the conveyor belt, a cleaning station positioned beside the cutting mechanism, a loading frame capable of moving up and down and positioned beside the cleaning station, a cassette storage containing multiple receiving cassettes (each having a BGA product contained therein) and positioned to abut one end of the loading frame, a gripping device arranged at the other end of the loading frame, and a revolving arm assembly arranged among the cutting table, the cleaning station and the loading frame and comprising three revolving arms each having a pivotal end and a distal end respectively extending above the cutting table, the cleaning station and the loading frame with each distal end having a suction device mounted thereon.