Abstract: An advanced parallel seam-sealing system which includes a control console, computer deck, electronic keyboard and welding robot for automatically sealing electronic and other component packages. The welding robot is designed to have seven (7) degrees of motion. Parallel arms having roller electrodes move independent of each other in horizontal and rotational directions to continuously operate on a package or matrix of packages which are supported on a rotary table that has vertical, longitudinal and rotary motion.Six of the motions are driven through computer programmed commands and the vertical rotary table motion is electromechanically controlled and represents the seventh degree of motion. The multiple degrees of freedom allow the system to be used for sealing of multiple arrays of packages by this parallel seam-sealing technique, in a reliable, precise and fast operation.

Abstract: The apparatus is for feeding semi-conductor devices to and from process machines.The apparatus includes a main frame 3 having a loading station 1 and an unloading station 2 each of which has a docking station for receiving carts 5. The carts are lifted by a jacking arrangement 40 into operative engagement with a loading or unloading system, 6 or 7 respectively, the loading/unloading means being movable relative to the main frame 3 when engaged by the cart, the movement of the loading means being detected by a fibre optic control system which initiates a signal to terminate lifting. In this way, a loading station of the cart is accurately aligned in three mutually perpendicular axes with the loading/unloading means to ensure reliable transfer of components from the carrier in the cart and a transfer conveyor by which the components are transferred to a machine for a processing operation or are transferred from the machine into an empty cart.