WAFER-LEVEL BOND STRENGTH MEASUREMENT
    3.
    发明公开

    公开(公告)号:US20240133799A1

    公开(公告)日:2024-04-25

    申请号:US17973316

    申请日:2022-10-24

    申请人: Intel Corporation

    发明人: Khaled AHMED

    IPC分类号: G01N19/04

    CPC分类号: G01N19/04

    摘要: This disclosure describes systems, methods, and devices related to bond strength measurement. A device may comprise a first portion of a plate connected to a movement mechanism, a second portion of the plate comprising a sticky probe and a third portion of the plate comprising a mirror with a reflective side pointing outwards. The device may further comprise an optical fiber sensor assembly comprising an optical fiber bundle for sending light through a first optical fiber and receiving light reflected from the mirror through a second optical fiber.

    PRECISION BATTERY GRID PELLET ADHESION/COHESION STRENGTH TESTER

    公开(公告)号:US20220376315A1

    公开(公告)日:2022-11-24

    申请号:US17747267

    申请日:2022-05-18

    IPC分类号: H01M10/42 G01N19/04

    摘要: Provided is a battery grid pellet adhesion/cohesion strength tester that can accurately determine the push-out strength of a battery grid pellet by measuring the binding of the active material to the battery grid during the pasting and curing process. A programmable test stand and force gage are used with a selectable active material punching tool fixture and a set of selectable set of grid location pins. Active material from a lead-acid battery is forced out of the battery grid at a programmed feed rate with the force gage reporting precise force measurements for each battery grid pellets adhesion/cohesion strength. The inventive device can be utilized as a quality control measure following the battery pasting and curing process, which will ensure that consistent and uniform adhesion/cohesion has occurred during battery manufacture, thereby avoiding battery premature performance failure.

    MECHANICAL PROPERTY DETECTION DEVICE AND USE METHOD THEREOF AND FORCE DETECTION SYSTEM

    公开(公告)号:US20220146407A1

    公开(公告)日:2022-05-12

    申请号:US17582946

    申请日:2022-01-24

    摘要: The present disclosure provides a mechanical property detection device and a force detection system, and relates to the technical field of hydrate experiment equipment. The mechanical property detection device includes a reaction kettle, a thrust mechanism, and a force detection sensor; a reaction platform and a reaction frame provided on the reaction platform are provided in the reaction kettle, an end of the thrust mechanism extends into the reaction kettle, and can push the reaction frame to move relative to the reaction platform, and the force detection sensor is configured to detect magnitude of a thrust of the thrust mechanism when pushing the reaction frame, so as to solve the technical problems such as inconvenience in testing an adhesive force of gas hydrate in the prior art.

    IN SITU MECHANICAL CHARACTERIZATION OF A SINGLE CELL-CELL ADHESION INTERFACE UNDER LARGE STRAIN

    公开(公告)号:US20220082483A1

    公开(公告)日:2022-03-17

    申请号:US17473090

    申请日:2021-09-13

    摘要: A method of measuring a stress-strain curve in a cell-cell adhesion interface, the method including: providing a structure including a first movable island supported by a first beam, a second movable island supported by a second beam, and a gap therebetween connected by a pair of cells forming a junction, the pair of cells comprising a cell-cell adhesion interface having an initial length defined by a distance between nuclei of the pair of cells; moving the second movable island with a defined displacement; determining a displacement of the first movable island based on moving the second movable island; calculating a difference between the displacement of the first movable island and the defined displacement of the second movable island based on moving the second movable island; determining an applied strain in the cell-cell adhesion interface between the pair of cells based on the difference divided by the initial length of the cell-cell adhesion interface; calculating a force between the cell-cell adhesion interface of the pair of cells based on the displacement of the first movable island; calculating a stress in the cell-cell adhesion interface between the pair of cells based on the force; and determining the stress-strain curve of the cell-cell adhesion interface between the pair of cells by plotting the calculated stress against the applied strain.

    Engraving device and method for creating and measuring stress corrosion cracking on a flat coated test specimen

    公开(公告)号:US11204311B2

    公开(公告)日:2021-12-21

    申请号:US16766804

    申请日:2018-10-15

    申请人: Robert Bosch GmbH

    IPC分类号: G01N19/04 B44B3/00

    摘要: The invention relates to a method for carrying out a test and measuring method on a flat test specimen (1), wherein a mechanical load is introduced into a test specimen surface (2) by means of a rotating engraving head (3) of an engraving device (4), wherein the engraving head (3) penetrates with a defined contact pressure at least into a layer system (5) applied to the test specimen (1), wherein the rotating engraving head (3) is moved along the test specimen surface (2) and relative to the test specimen (1) in order to create at least one engraving (6) on the test specimen surface (2) by plastic deformations and/or brittle chipping of the layer system (5), and wherein the at least one engraving (6) introduced into the test specimen surface (2) is measured using a photo-optical method in order to evaluate layer adhesion of the layer system (5) to the main body (11). The invention also relates to an engraving device (4) for carrying out such a method.

    Measurement sensor and measurement method for measuring bond-slip at steel-concrete interface

    公开(公告)号:US11175216B2

    公开(公告)日:2021-11-16

    申请号:US16749210

    申请日:2020-01-22

    IPC分类号: G01N19/00 G01M5/00 G01N19/04

    摘要: Disclosed are a measurement sensor and a measurement method for measuring bond-slip at a steel-concrete interface (SCI). The measurement sensor mainly includes a specially-made spring steel sheet, strain gauges, force transmission clamps, flat-head rounded-corner limiting rods, a Π-shaped metal jacket, rectangular metal jackets, inverted T-shaped metal jackets, and wires. Two electric resistance strain gauges are respectively bonded on the front and back sides of the specially-made spring steel sheet; each electric resistance strain gauge is welded with a thin wire; two force transmission clamps are respectively fastened on the front and back sides of the specially-made spring steel sheet though rivets; a core measurement element is inserted into a measurement box assembled by three metal jackets above; the inverted T-shaped metal jackets are fastened through screws. Finally, the assembled structure is installed on a to-be-measured SCI using flat-head rounded-corner limiting rods, so as to form the measurement sensor.