OPTICAL APPARATUS
    1.
    发明申请

    公开(公告)号:US20250146943A1

    公开(公告)日:2025-05-08

    申请号:US18838745

    申请日:2023-03-01

    Applicant: RENISHAW PLC

    Abstract: A probe for use with a sample chamber, the probe including a probing element mounted on an arm, the arm insertable or inserted into the sample chamber to locate the probing element within the sample chamber, a drive mechanism for moving the arm, and a drive control system. Movement of the arm causes movement of the probing element within the sample chamber. The drive control system is for limiting movement of the arm to a specified range, the drive control system programmable to adjust the specified range.

    Systems and methods of clamp compensation

    公开(公告)号:US12057286B2

    公开(公告)日:2024-08-06

    申请号:US18084430

    申请日:2022-12-19

    Applicant: FEI Company

    Abstract: A method of producing a compensation signal to compensate for misalignment of a drive unit clamp element can include applying a clamp element drive signal to a drive unit clamp element to engage a mover element, determining a first displacement of the mover element, and determining a first compensation signal based at least in part on the first displacement. The method can further comprise applying the first compensation signal to the drive unit shear elements and the clamp element drive signal to the drive unit clamp element and determining a second displacement of the mover element. If the second displacement is less than a preselected threshold, the first compensation signal can be combined with an initial shear element drive signal to produce a modified shear element drive signal. If the second displacement is greater than the preselected threshold, a second compensation signal can be determined.

    CHARGED PARTICLE BEAM DEVICE
    8.
    发明公开

    公开(公告)号:US20230411108A1

    公开(公告)日:2023-12-21

    申请号:US18319554

    申请日:2023-05-18

    CPC classification number: H01J37/026 H01J37/28 H01J2237/103 H01J2237/2007

    Abstract: A charged particle beam device includes: a plasma generation device attached to a sample chamber through a connecting member; a guide including a hollow portion configured to guide a plasma generated by the plasma generation device in a direction toward a stage; a first voltage source configured to apply a voltage to the stage; and a second voltage source configured to adjust the plasma generation device and the guide to a predetermined potential, in which the guide is disposed to avoid an opening of an objective lens through which a charged particle beam passes and to position a tip of the guide between the objective lens and the stage.

    Reentrant gas system for charged particle microscope

    公开(公告)号:US11651928B2

    公开(公告)日:2023-05-16

    申请号:US17364717

    申请日:2021-06-30

    Applicant: FEI Company

    Inventor: James B McGinn

    CPC classification number: H01J37/026 H01J37/08 H01J37/26

    Abstract: Disclosed herein are apparatuses and systems for reentrant fluid delivery techniques. An example system includes at least a fluid delivery conduit extending between first and second electrical potentials, wherein the fluid delivery conduit is formed into a tilted helical so that a fluid flowing through the fluid delivery conduit experiences an electric field reversal through each winding of the fluid delivery conduit.

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