Patent ID: 9691640
Date: 2017-06-27
CPC Classifications: H01L

Claim:
1. An automatic system for cleaning load ports of semiconductor process tools, comprising: a vacuum cleaner; a rail; a transport mechanism moveably disposed on the rail and configured to transfer the vacuum cleaner along the rail; and a system controller connected to the semiconductor process tools and the transport mechanism, wherein the system controller is configured to control the transport mechanism to transfer the vacuum cleaner to an unoccupied load port to perform a cleaning process, and the vacuum cleaner comprises: a cleaner carrier having a first chamber, a second chamber, one or more suction openings, and one or more exhaust vents, wherein the second chamber is above and connected with the first chamber, the suction openings penetrate through a bottom of the cleaner carrier, and the exhaust vents penetrate through a portion of the cleaner carrier to connect the second chamber to outside of the cleaner carrier; a suction fan disposed in the first chamber; a motor connected with the suction fan to provide a rotational force to the suction fan; and a dust bag detachably installed in the second chamber and on an air flow path to filter and collect contaminants sucked in by the suction fan.