Apparatus operable to perform a measurement operation on a substrate, lithographic apparatus, and method of performing a measurement operation on a substrate
First Claim
1. An apparatus configured to supply information to an apparatus configured to perform a measurement operation on a substrate in accordance with one or more substrate alignment models, wherein the one or more substrate alignment models are selected from a plurality of candidate substrate alignment models;
- and wherein the apparatus configured to perform the measurement operation comprises an external interface configured to enable the selection of the one or more substrate alignment models from the plurality of candidate substrate alignment models and/or alteration of one or more candidate substrate alignment models of the candidate substrate alignment models, prior to the measurement operation, and the apparatus configured to supply information is configured to provide information to the external interface to enable the selection and/or alteration.
1 Assignment
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Accused Products
Abstract
An apparatus and method for performing a measurement operation on a substrate in accordance with one or more substrate alignment models. The one or more substrate alignment models are selected from a plurality of candidate substrate alignment models. The apparatus, which may be a lithographic apparatus, includes an external interface which enables selection of the substrate alignment model(s) and/or alteration of the substrate alignment model(s) prior to the measurement operation.
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Citations
20 Claims
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1. An apparatus configured to supply information to an apparatus configured to perform a measurement operation on a substrate in accordance with one or more substrate alignment models, wherein the one or more substrate alignment models are selected from a plurality of candidate substrate alignment models;
- and wherein the apparatus configured to perform the measurement operation comprises an external interface configured to enable the selection of the one or more substrate alignment models from the plurality of candidate substrate alignment models and/or alteration of one or more candidate substrate alignment models of the candidate substrate alignment models, prior to the measurement operation, and the apparatus configured to supply information is configured to provide information to the external interface to enable the selection and/or alteration.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of performing a measurement operation on a substrate, the method comprising:
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obtaining substrate context information comprising information relating to known processing of a substrate by one or more particular tools; selecting one or more substrate alignment models from the plurality of candidate substrate alignment models based upon the substrate context information; and performing the measurement operation on the substrate or lot of substrates in accordance with the selected one or more substrate alignment models; wherein the selecting is performed either per each lot of substrates such that one lot of a particular device manufacturing process has a different substrate alignment model than another lot of the particular device manufacturing process, or per substrate such that one substrate of a lot of a particular device manufacturing process has a different substrate alignment model than another substrate of the lot. - View Dependent Claims (15, 18, 19)
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16. A non-transitory program carrier comprising machine readable instructions which, when run on a suitable apparatus, cause the apparatus to at least:
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obtain substrate context information comprising information relating to relating to known processing of a substrate by one or more particular tools; select one or more substrate alignment models from the plurality of candidate substrate alignment models based upon the substrate context information; and cause performance of a measurement operation on the substrate or lot of substrates in accordance with the selected one or more substrate alignment models, wherein the selection is performed either per each lot of substrates such that one lot of a particular device manufacturing process can have a different substrate alignment model than another lot of the particular device manufacturing process, or per substrate such that one substrate of a lot of a particular device manufacturing process can have a different substrate alignment model than another substrate of the lot. - View Dependent Claims (17, 20)
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Specification