Scanning probe microscopy inspection and modification system
A scanning probe microscopy (SPM) inspection and/or modification system which uses SPM technology and techniques. The system includes various types of microstructured SPM probes for inspection and/or modification of the object. The components of the SPM system include microstructured calibration structures. A probe may be defective because of wear or because of fabrication errors. Various types of reference measurements of the calibration structure are made with the probe or vice versa to calibrate it. The components of the SPM system further include one or more tip machining structures. At these structures, material of the tips of the SPM probes may be machined by abrasively lapping and chemically lapping the material of the tip with the tip machining structures.
1. A probe for delivering a fluid material to an object, the probe comprising:
a tip with a capillary;
a microstructured pump having an inlet to receive the fluid material and an outlet in fluid communication with the capillary, the pump pumping the fluid material into the capillary so that the fluid material is ejected by the capillary and delivered to the object in response to a control signal received by the pump.
2. A probe as recited in claim 1 further comprising:
a base in which the pump is formed; and
a support platform connected to the base and on which the tip is located, the support structure having a duct that connects the capillary of the tip and the outlet of the pump.
3. A mask repair tool comprising:
an SPM probe comprising a tip with a capillary;
a pump having an inlet to receive fluid material and an outlet in fluid communication with the capillary, the pump pumping the fluid material into the capillary so that the fluid material is ejected by the capillary and delivered to the mask in response to a control signal received by the pump.
4. A mask repair tool as recited in claim 3 further comprising:
a base in which the pump is formed; and
a support platform connected to the base and on which the tip is located, the support structure having a duct that connects the capillary of the tip and the outlet of the pump.
5. A mask repair tool as recited in claim 3 further comprising a controller configured to:
receive modification data representing a required modification to be made to the mask's material; and
in response to the modification data, generate the control signal.
6. A mask repair tool as recited in claim 3 wherein the fluid material is a liquid.
7. A method of performing repairs on a mask, the method comprising:
receiving modification data representing a required addition to be made to the mask's material; and
in response to the modification data, adding fluid material to the mask with an SPM probe.
8. A method as recited in claim 7 further comprising generating the modification data by making SPM measurements of the mask.
9. A method as recited in claim 8 wherein the SPM measurements are generated with the same SPM probe as the SPM probe used to add fluid material to the mask.
10. A method as recited in claim 8 wherein the SPM measurements are generated with a different SPM probe than the SPM probe used to add fluid material to the mask.
11. A method as recited in claim 7 wherein the fluid material is a liquid.
12. A method as recited in claim 7 wherein the fluid material is introduced to the surface of the mask through an orifice in a tip of the SPM probe.
13. A method as recited in claim 7 further comprising using the mask, so repaired, in a lithographic fabrication process.