DIRECT ACCESS STORAGE UNIT
    12.
    发明专利

    公开(公告)号:CA1283733C

    公开(公告)日:1991-04-30

    申请号:CA534217

    申请日:1987-04-08

    Applicant: IBM

    Abstract: Direct Access Storage Unit The storage unit comprises an array of tunnel tips (13) arranged at tunneling distance from a storage medium (2) which is capable of permitting digital information to be written or read through variations of the tunneling current. Each tunnel tip (13) is supported on its own cantilever beam (12) extending across a cavity (14) formed in a common substrate (15). Each cantilever beam (12) as well as the bottom of each cavity (14) are covered with an electrically conducting layer (16, 18) enabling the distance between each one of the tunnel tips (13) and the surface of the storage medium (2) to be electrostatically controlled. The storage medium (2) is attached to the free end of a piezoceramic bender, the end in operation performing a circular motion so that each tunnel tip (13) scans its associated area of the storage medium (2) along a circular track.

    METHODS AND APPARATUSES FOR POSITIONING NANO-OBJECTS WITH ASPECT RATIOS

    公开(公告)号:CA2868577C

    公开(公告)日:2021-08-17

    申请号:CA2868577

    申请日:2013-04-25

    Applicant: IBM

    Abstract: The present invention is notably directed to apparatuses and methods for positioning nano- objects (20) on a surface. The method comprises: providing (S10 S50) two surfaces (15, 17) including a first surface (15) and a second surface (17) in vis-à-vis, wherein at least one of the two surfaces exhibits one or more positioning structures (16, 16a) having dimensions on the nanoscale; and a ionic liquid suspension (30) of the nano-objects between the two surfaces, wherein each of the surfaces forms an electrical double layer with the ionic liquid suspension, each of the two surfaces having a same electrical charge sign; and letting (S60) nano-objects in the suspension position according to a potential energy (31) resulting from the electrical charge of the two surfaces and depositing (S70) one or more of the nano-objects on the first surface according to the positioning structures, by shifting minima (32) of the potential energy towards the first surface.

    Verfahren und Vorrichtungen zur Positionierung von Nanoobjekten

    公开(公告)号:DE112013001196B4

    公开(公告)日:2016-04-14

    申请号:DE112013001196

    申请日:2013-04-25

    Applicant: IBM

    Abstract: Verfahren zur Positionierung von Nanoobjekten (20) auf einer Oberfläche, wobei das Verfahren aufweist: Bereitstellen (S10 bis S50): zweier einander gegenüberliegender Oberflächen (15, 17) einschließlich einer ersten Oberfläche (15) und einer zweiten Oberfläche (17), wobei mindestens eine der zwei Oberflächen eine oder mehrere Positionierungsstrukturen (16, 16a) mit Abmessungen im Nanometerbereich aufweist; und einer ionischen Flüssigkeitssuspension (30) der Nanoobjekte zwischen den zwei Oberflächen, wobei die Suspension zwei elektrische Doppelschichten aufweist, die jeweils an einer Grenzfläche zu einer jeweiligen der zwei Oberflächen gebildet sind, wobei die elektrischen Oberflächenladungen der zwei Oberflächen dasselbe Vorzeichen haben; und Sich-positionieren-lassen (S60) der Nanoobjekte (20) in der Suspension entsprechend einer potentiellen Energie (31), die aus der elektrischen Ladung der zwei Oberflächen resultiert, und Abscheiden (S70) eines oder mehrerer der Nanoobjekte auf der ersten Oberfläche den Positionierungsstrukturen gemäß durch Verschieben von Minima (32) der potentiellen Energie zur ersten Oberfläche hin.

    Microfluidic surface processing device and method

    公开(公告)号:GB2518075A

    公开(公告)日:2015-03-11

    申请号:GB201420143

    申请日:2013-06-11

    Applicant: IBM

    Abstract: A microfluidic surface processing device (10a-10h), comprising: a microfluidic probe head (16) with at least one aperture (11) on a face (17) thereof, said at least one aperture (11) comprising at least an outlet aperture (11); and a surface processing structure (21, 21a, 22) extending outwardly and perpendicularly with respect to said face (17), the processing structure being further dimensioned and located with respect to the outlet aperture (11) such that it can intercept a flowpath of liquid (15) dispensed via the outlet aperture, in operation. Related apparatuses and methods are provided.

    Method of fabrication of micro-optics device with curved surface defects

    公开(公告)号:GB2516183A

    公开(公告)日:2015-01-14

    申请号:GB201418276

    申请日:2013-03-05

    Applicant: IBM

    Abstract: A method of fabrication of a micro-optics device (1), the method comprising: -providing a layer (300) of material; -patterning said layer of material by locally unzipping and/or desorbing molecules therefore, with a nano-scale dimensione probe, to obtain a curved surface (s2) of layer of material, the curved surface having a curved profile (21, 21', 22) in at leas a plane section ((y, z), (x, z)); and -comprising a layer structure by providing one or more additional layers of material in contact with the curved surface, to obtain the micro-optics device (1), the latter having said layer structure, a given layer (10) therefore comprising a defect (20), said defect delimited by two surfaces, wherein one of said two surface is the curved surface (s2) and said at least one plane section ((y, z), (x, z)) is perpendicular to the layer structure.

    Microfluidic surface processing device and method

    公开(公告)号:AU2013282831A1

    公开(公告)日:2014-11-13

    申请号:AU2013282831

    申请日:2013-06-11

    Applicant: IBM

    Abstract: A microfluidic surface processing device (10a-10h), comprising: a microfluidic probe head (16) with at least one aperture (11) on a face (17) thereof, said at least one aperture (11) comprising at least an outlet aperture (11); and a surface processing structure (21, 21a, 22) extending outwardly and perpendicularly with respect to said face (17), the processing structure being further dimensioned and located with respect to the outlet aperture (11) such that it can intercept a flowpath of liquid (15) dispensed via the outlet aperture, in operation. Related apparatuses and methods are provided.

    Wear-less operation of a material surface with a scanning probe microscope

    公开(公告)号:GB2487156A

    公开(公告)日:2012-07-11

    申请号:GB201206335

    申请日:2010-11-08

    Applicant: IBM

    Abstract: The invention concerns a method for scanning a surface (52) of a material (50) with a scanning probe microscope or SPM (10), the SPM having a cantilever sensor (100) configured to exhibit distinct spring behaviors (C, Ck), the method comprising: - operating the SPM in contact mode, whereby the sensor is scanned on the material surface and a first spring behavior (C) of the sensor (e.g. a fundamental mode of flexure thereof) is excited by deflection of the sensor by the material surface; and - exciting with excitation means a second spring behavior (Ck) of the sensor at a resonance frequency thereof (e.g. one or more higher-order resonant modes) of the cantilever sensor to modulate an interaction of the sensor and the material surface and thereby reduce the wearing of the material surface.

    METHODS AND APPARATUSES FOR POSITIONING NANO OBJECTS WITH ASPECT RATIOS

    公开(公告)号:IN4834CHN2014A

    公开(公告)日:2015-09-18

    申请号:IN4834CHN2014

    申请日:2014-06-25

    Applicant: IBM

    Abstract: The present invention is notably directed to apparatuses and methods for positioning nano objects (20) on a surface. The method comprises: providing (S10 S50) two surfaces (15 17) including a first surface (15) and a second surface (17) in vis à vis wherein at least one of the two surfaces exhibits one or more positioning structures (16 16a) having dimensions on the nanoscale; and a ionic liquid suspension (30) of the nano objects between the two surfaces wherein each of the surfaces forms an electrical double layer with the ionic liquid suspension each of the two surfaces having a same electrical charge sign; and letting (S60) nano objects in the suspension position according to a potential energy (31) resulting from the electrical charge of the two surfaces and depositing (S70) one or more of the nano objects on the first surface according to the positioning structures by shifting minima (32) of the potential energy towards the first surface.

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