Vehicle for transporting a semiconductor device carrier to a semiconductor processing tool
View Patent ↗A vehicle for transporting semiconductor devices is used for servicing loadports of semiconductor processing tools with device carriers by use of a portal hoist. Thereby, the vehicle contains an empty inner space and an open front side, such that the loadport is enclosed by the vehicle, when it approaches and docks to the loadport. Time for loading is shortened, complexity of structure and procedure is reduced and cleanroom space is saved.
1. A vehicle for transporting a semiconductor device carrier to a semiconductor processing tool, the semiconductor processing tool having a loadport for the semiconductor device carrier attached to the semiconductor processing tool, the loadport having a side length, a aide depth and a height, the semiconductor processing too providing a free apace above a top surface of the loadport, the loadport configured for receiving the semiconductor device carrier on the top surface of the loadport and the semiconductor device carrier having an interface for assisting in lifting the semiconductor device carrier, the vehicle comprising:
a U-shaped chassis as viewed from a bottom perspective, said U-shaped chassis containing a skeleton of support element surrounding and defining an inner space, said inner space being free of any of said support elements of said skeleton, and said U-shaped chasis having an open front side configured for receiving the loadport into said inner space, said inner space having a length larger than the side length of the loadport, and said inner space having a depth greater than the side depth of the loadport;
a set of wheels mounted to said U-shaped chassis for moving the vehicle;
a lifting device mounted to said U-shaped chassis within a vertical height range of a free apace designated for the loadport, said lifting device provided for placing or picking up the semiconductor device carrier onto the loadport when the loadport is received within said inner space;
vertically disposable lift connector devices mounted to the lifting device for connecting to the interface for assisting in lifting the device carrier; and
a crank mechanism mounted on said U-shaped chassis for operating said lifting device.
2. The vehicle according to claim 1 , further comprising a device for docking to the loadport, such that said lifting device carrying the semiconductor device carrier reaches a position directly above the loadport.
3. The vehicle according to claim 1 , wherein said lift connector device is a fork lift, and the interface for assisting in lifting the device carrier has a mushroom shape.
4. The vehicle according to claim 1 , wherein the semiconductor device carrier is a front opening unified pod carrying at least one semiconductor wafer of a diameter of at least 300 millimeters.
5. The vehicle according to claim 1 , further comprising a device for pushing the vehicle manually by an operator.
6. The vehicle according to claim 1 , wherein said lifting device is a portal hoist.