Method for automatically loading a probe assembly
View Patent ↗The preferred embodiments are directed to a method of operating an SPM including providing probe cassette for a scanning probe microscope that includes a base having at least one probe storage receptacle, a lid mountable on the base with the probe storage receptacle at least substantially covering the at least one receptacle, and a probe retainer that retains a probe device of the scanning probe microscope in the receptacle under a compressive force. The probe cassette can be pre-loaded and shipped to a user site where the cassette can be loaded in an AFM without manual manipulation of the individual probe devices.
1. A method of operating a scanning probe microscope (SPM), the method comprising the steps of:
providing a delivery package including a base and a lid;
loading the base of the delivery package into the SPM;
operating the SPM to scan a sample with at least one probe device initially supported by the delivery package without manual manipulation of the probe device by a user from the delivery package of the scanning probe microscope;
wherein the base includes at least one probe storage receptacle and the lid of the delivery package is mounted to the base so as to at least substantially cover the at least one receptacle, and wherein the at least one probe device includes a plurality of probe devices, and wherein a probe retainer retains at least one of the probe devices under compressive force; and
wherein the compressive force is generated by deforming at least one of at least a portion of the lid and the probe retainer.
2. The method of claim 1 , further comprising the step of removing the lid from the base of the delivery package.
3. The method of claim 1 , wherein no further manual action is taken with respect to the loading of the base into the SPM.
4. The method of claim 1 , wherein the step of loading the base further comprises registering the base with the SPM.
5. The method of claim 4 , wherein the base is registered with a stage of the SPM.
6. The method of claim 1 , wherein the compressive force is generated by deforming a compliant element.
7. The method of claim 6 , wherein the compliant element is mounted on the lid independent of the probe retainer.
8. The method of claim 6 , wherein the compliant element is a spring.
9. The method of claim 1 , wherein the probe retainer is compliant so as to generate the compressive force.
10. The method of claim 9 , wherein the probe retainer includes a surface that contacts the probe device when the lid is coupled to the base and does not contact the probe device upon lid removal.
11. The method of claim 10 , wherein at least the surface of the probe retainer that contacts the probe device is non-stick.
12. The method of claim 11 , wherein the probe retainer has a surface energy less than about 30 ergs/cm 2 .
13. The method of claim 11 , wherein the surface of the probe retainer is conductive and formed using a polymer.
14. The method of claim 13 , wherein the polymer is carbon impregnated PTFE.
15. A method of operating a scanning probe microscope (SPM), the method comprising the steps of
providing a delivery package including:
a base having at least one probe storage receptacle;
a lid mountable on the base so as to at least substantially cover the at least one receptacle;
a probe retainer that retains at least one of the SPM probe devices in the receptacle under a compressive force; and
wherein the compressive force is generated by deforming at least one of a) at least a portion of the lid and b) the probe retainer;
loading the base into the SPM; and
operating the SPM to scan a sample with at least one probe device initially supported by the delivery package without manual manipulation of the probe device by a user from the delivery package.