Multi-angle sample holder with integrated micromanipulator
The disclosed apparatus may include support portions, a frame (such as a base) configured to maintain the support portions in a spaced-apart configuration, a sample holder configured to receive a sample, and a probe assembly including micromanipulators configured to position one or more probes in contact with the sample. The sample holder may rotate between the support portions, and the probe assembly may rotate with the sample holder so that the one or more probes may maintain contact with a sample in the sample holder as the sample holder is rotated, for example, to expose a portion of the sample for processing. Various other methods, systems, and computer-readable media are also disclosed.
1. An apparatus comprising:
a first support portion;
a second support portion;
a frame configured to maintain the first and second support portions in a spaced-apart configuration;
a sample holder configured to receive a sample; and
a probe assembly comprising at least one probe,
wherein:
the sample holder is configured to rotate between the first and second support portions;
the probe assembly comprises a micromanipulator arrangement configured to position the at least one probe in contact with the sample when the sample is received in the sample holder; and
the probe assembly is configured to rotate with the sample holder to maintain contact with the sample when the sample holder is rotated between the first and second support portions.
2. The apparatus of claim 1 , wherein:
the frame comprises a base; and
the first and second support portions are attached to the base.
3. The apparatus of claim 1 , wherein:
the sample holder comprises an attachment configured to receive the sample; and
the attachment comprises at least one of a hole, a clamp, or a screw.
4. The apparatus of claim 1 , wherein the sample holder is attached to the first support portion by a rotatable attachment.
5. The apparatus of claim 1 , wherein the sample holder comprises:
a first sample holder part attached to the first support portion by a first rotatable attachment; and
a second sample holder part attached to the second support portion by a second rotatable attachment,
wherein:
the sample mechanically interconnects the first and second sample holder parts when the sample is received by the sample holder; and
at least one of the first and second rotatable attachments comprises a motor.
6. The apparatus of claim 1 , wherein the micromanipulator arrangement comprises a micromanipulator configured to move the at least one probe relative to the sample holder.
7. The apparatus of claim 1 , wherein the micromanipulator arrangement comprises a plurality of micromanipulators configured to move the at least one probe along one or more of a plurality of directions relative to the sample holder.
8. The apparatus of claim 1 , wherein the at least one probe comprises an electrical probe.
9. The apparatus of claim 1 , wherein the at least one probe comprises an optical probe.
10. The apparatus of claim 1 , further comprising a controller configured to determine a probe parameter based on a probe signal obtained from the probe assembly.
11. The apparatus of claim 10 , wherein the at least one probe comprises a pair of electrical probes; and
the probe parameter is based on an electrical resistance between the pair of electrical probes.
12. The apparatus of claim 10 , wherein:
the at least one probe comprises a pair of optical probes; and
the probe parameter is based on an optical transmission between the pair of optical probes.
13. The apparatus of claim 10 , wherein the controller is further configured to:
control a rotation of the sample holder through a predetermined angle; and
initiate application of a process to a portion of the sample.
14. The apparatus of claim 13 , wherein the controller is further configured to:
determine the probe parameter during the application of the process to the portion of the sample; and
rotate the sample holder back to a starting position after completion of the process.
15. The apparatus of claim 13 , wherein:
the sample holder is configured to adjust a temperature of the sample when the sample is received by the sample holder; and
the process comprises a deposition or an ablation.
16. A method, comprising:
contacting a plurality of probes to a sample when the sample is located in a sample holder;
rotating the sample holder to expose a portion of the sample, the plurality of probes remaining in contact with the sample as the sample holder is rotated;
processing the portion of the sample; and
measuring a probe parameter during the processing of the portion of the sample, wherein the probe parameter is based on an electrical impedance or an optical transmissivity between a pair probes of the plurality of probes.
17. The method of claim 16 , wherein:
the pair of probes is a pair of electrical probes; and
the probe parameter is an electrical impedance between the pair of electrical probes.
18. The method of claim 16 , wherein:
the pair of probes is a pair of optical probes; and
the probe parameter is an optical transmissivity between the pair of optical probes.
19. The method of claim 16 , wherein the processing the portion of the sample further comprises exposing the portion of the sample to a particle beam or an electromagnetic beam.
20. The method of claim 19 , further comprising:
receiving the sample by the sample holder;
locating the sample holder in a chamber of an instrument; and
evacuating the chamber so that the sample is located within at least a partial vacuum.