Method for thinning a sample and sample carrier for performing said method
AssigneeFEI Company
InventorRALF LEHMANN
Life of this patent
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AssigneeFEI Company
InventorRALF LEHMANN
Estimating the term…
The invention describes a sample carrier (3) for thinning a sample (1) taken from e.g. a semiconductor wafer. The sample carrier comprises a ridged part (5), e.g. made of e.g. copper, with an outer boundary (6), and a supporting film (4), e.g. made of carbon, extending beyond the outer boundary. By placing the sample on the supporting film, the sample can be attached to the rigid structure using e.g. IBID. The supporting film aligns the samples when they are placed onto it. After attaching the sample to the rigid structure the sample can be thinned with e.g. an ion beam, during which thinning the supporting film is locally removed as well. The invention results in better alignment of the sample to the sample carrier, and also in more freedom how the sample is transported from the wafer to the sample carrier, e.g. with the help of an electrically charged glass needle (2). The latter eliminates the attaching/severing steps that are normally associated with the transport of a sample to a sample carrier.
A method for thinning a sample, the method comprising:
A sample carrier for carrying a sample in a particle-optical apparatus, said sample carrier provided with a rigid structure showing an outer boundary to which a sample can be attached, characterized in that the sample carrier comprises a supporting film for supporting the sample, said supporting film adhered to said rigid structure and extending from the outer boundary, so that the supporting film is not completely surrounded by the rigid structure.
A sample carrier for holding a TEM sample, the carrier comprising:
A method for thinning a TEM sample, the method comprising:
Dependencies are inferred from the claim text.