Installation for processing a semiconductor wafer and method for operating the installation
An installation for processing a semiconductor wafer includes a semiconductor fabrication device having a load port, on which an identity code that can be read optically or through an effective electromagnetic field is stored. A mobile device, for example, a container communicating with the load port or a vehicle for transporting such a container, contains a corresponding reader to determine the identifier. The configuration makes the flexible determination of position within a fabrication facility possible. Also provided is a method for operating the installation.
1. An installation for processing a semiconductor wafer, comprising:
a device for processing the semiconductor wafer, said device having at least one loading device for supplying the semiconductor wafer;
said loading device having:
interface elements for coupling to a container adapted to transport the semiconductor wafer; and
an identification device storing a constant identity code representing said loading device and being fitted to said loading device; and
a mobile unit interacting with said identification device, said mobile unit registering said identity code and digitally storing and making available said identity code for further use.
2. The installation according to claim 1 , wherein said identification device is applied to said loading device as an optically machine-readable marking.
3. The installation according to claim 1 , wherein said identification device is an optically machine-readable marking.
4. The installation according to claim 1 , wherein said identification device is applied to said loading device by a marking read through an electromagnetic field.
5. The installation according to claim 1 , wherein said identification device is an electromagnetic field readable marking.
6. The installation according to claim 1 , further comprising:
a transport device adapted to transport the container to said loading device; and
a reader fixed to said transport device and detecting said identity code.
7. The installation according to claim 6 , wherein:
said transport device is a rail-guided transport system having rails and vehicles guided by said rails for transporting the container; and
said reader is fixed to at least one of said vehicles.
8. The installation according to claim 6 , wherein:
said transport device is a vehicle for transporting the container by moving on a floor; and
said reader is fixed to the vehicle.
9. An installation for processing a semiconductor wafer, comprising:
a device for processing the semiconductor wafer, said device having at least one loading device for supplying the semiconductor wafer;
said loading device having:
interface elements for coupling to a container adapted to transport the semiconductor wafer; and
an identification device storing an identity code representing said loading device and being fitted to said loading device; and
a mobile unit interacting with said identification device, said mobile unit registering said identity code and digitally storing and making available said identity code for further use;
a further container removably coupled to said loading device through said interface elements, said further container having a signal processing device producing an output value; and
a reader fixed at said further container, said reader assigning said output value said identity code digitally provided by said loading device.
10. The installation according to claim 9 , wherein said identification device is applied to a section of said loading device disposed opposite one side of said further container placed on said loading device.
11. The installation according to claim 10 , wherein:
said interface elements have a carrier plate receiving thereon said further container communicating with said loading device; and
said identification device is fixed to said carrier plate.
12. The installation according to claim 9 , wherein:
said identification device is an optical identification device; and
said further container has an image recording device recording said identity code from said loading device on which at least one of the container and said further container is placed.
13. The installation according to claim 12 , wherein:
said image recording device has an optical sensor disposed within at least one of the container and said further container;
said interface elements have a carrier plate receiving thereon said further container communicating with said loading device; and
said optical sensor lies immediately opposite said identification device when at least one of the container and said further container is placed on said carrier plate.
14. The installation according to claim 13 , wherein at least one of the container and said further container has:
a baseplate with a hole accommodating said optical sensor; and
an image evaluation device determining said identity code from an optically received signal.
15. The installation according to claim 9 , wherein:
said further container has a measuring device for measuring contamination of the air; and
said reader determines said identity code associated with a contamination measuring operation and associated with a contamination value and stores said identity code temporarily in said signal processing device.