Charged particle radiation apparatus

US9153418B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9153418-B2
Application numberUS-201414461051-A
CountryUS
Kind codeB2
Filing dateAug 15, 2014
Priority dateSep 13, 2013
Publication dateOct 6, 2015
Grant dateOct 6, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

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A charged particle radiation apparatus includes a control device that switches between a first charged particle beam and a second charged particle beam, the first charged particle beam being scanned to acquire an image and a waveform signal, the second charged particle beam being scanned over a sample before the scan of the first charged particle beam and used to charge the sample more than the first charged particle beam; wherein the control device is configured to acquire at least one of signal waveform data and image data about a pattern formed on the sample in accordance with a scan performed on the sample by the second charged particle beam, and to stop, when the acquired data has proved to be indicative of a predetermined state, the scan of the second charged particle beam.

First claim

Opening claim text (preview).

What is claimed is: 1. A charged particle radiation apparatus for acquiring signal waveform data or image data of a pattern formed on a sample in accordance with charged particles, the charged particles being obtained by scanning a charged particle beam emitted from a charged particle source, the charged particle radiation apparatus comprising: a control device that switches between a first charged particle beam and a second charged particle beam, the first charged particle beam b…

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What does patent US9153418B2 cover?
A charged particle radiation apparatus includes a control device that switches between a first charged particle beam and a second charged particle beam, the first charged particle beam being scanned to acquire an image and a waveform signal, the second charged particle beam being scanned over a sample before the scan of the first charged particle beam and used to charge the sample more than the…
Who is the assignee on this patent?
Hitachi High Tech Corp
What technology area does this patent fall under?
Primary CPC classification H01J37/265. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Oct 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).