Patent ID: 6012751
Filing Date: 2000-01-11
Classification: B25J,H01L,Y10S,Y10T

Abstract:
A vacuum transfer device of a vacuum transfer system for use in a semiconductor device fabrication facility, said device comprising:a fixed upper plate;a lower plate slidingly coupled to said upper plate so as to be slidable relative to said upper plate in a direction back and forth, said lower plate having an inclined surface integral therewith, the inclined surface having a slope which is inclined and varies relative to said direction;a guide by which said lower plate is slidingly coupled to the upper plate;a pushing unit mounted to said upper plate, said pushing unit including a moving support mounted so as to be movable in said direction relative to said fixed upper plate, a lever having first and second ends, the lever being carried by said moving support so as to move therewith, a resilient member connected to one of said ends of the lever and exerting a force on the lever which moves the lever in a direction urging the other end of the lever toward said lower plate, and a cam connected to said other end of the lever and engageable with said inclined surface of the lower plate under the force exerted by said resilient member on the lever.